ADC/DAC
المنتجات (3,100+)
ADS7841PBG4 - 12-Bit 4-Ch 200kHz SAR ADC | Texas Instruments
The Texas Instruments ADS7841PBG4 is a 12-bit, 4-channel successive-approximation analog-to-digital converter (SAR ADC) with synchronous serial output, packaged in a 16-pin PDIP (through-hole) and rated for industrial -40C to +85C operation. It supports 4 single-ended or 2 differential inputs, delivers up to 200 kHz sampling, and offers pin-programmable 8-bit or 12-bit resolution. Key specifications include +/-1 LSB max INL and DNL, no missing codes, 72 dB SINAD, 2 mW typical power dissipation at 200 kHz throughput, and a 3.75 us conversion time. A SAR ADC is a type of data converter that uses a binary-search successive-approximation algorithm to digitize an analog input in N clock cycles for N bits of resolution. SAR ADCs sit in the broader data-converter hierarchy of analog-to-digital converters, which also include delta-sigma, pipeline, and flash architectures. Within TI's portfolio, SAR ADCs are the workhorse choice for medium-speed (10 kSPS to 1 MSPS), medium-resolution (8 to 16 bit) multiplexed applications where low latency, deterministic throughput, and simple SPI/QSPI/MICROWIRE-compatible serial interfaces are required. Key features of the ADS7841 include single +2.7V to +5.5V supply operation, a software-controlled shutdown mode that drops supply current to under 1 uA, an analog input range of 0V to VREF, and a reference voltage (VREF) that can be varied from 100 mV to VCC. The four analog inputs are selected by a 2-bit address and a 1-bit single-ended/differential control word clocked into the DIN pin, making the part pin-compatible with industry-standard touch-screen controllers of the same era. The 16-PDIP package supports breadboard and through-hole prototyping as well as legacy industrial backplanes. Typical applications include industrial process control, portable data acquisition, isolated sensor front ends, pen/touch input replacement, and battery-powered instrumentation. The wide supply range and 1 uA shutdown current also make the part suitable for power-constrained remote-sensor nodes where the ADC is duty-cycled awake only when a measurement is needed. When designing with the ADS7841PBG4, decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the supply pin, and bypass VREF with at least 1 uF of effective capacitance to keep the reference stable across conversions. The serial clock (DCLK) frequency is limited to 2.048 MHz at VCC = 5V (derate to 1.2 MHz at 2.7V) - the host MCU must respect this ceiling for reliable conversions. CS must be brought high after the 24th SCLK to complete the conversion cycle; floating CS mid-frame yields a corrupted sample. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select, source, and integrate the ADS7841PBG4 with confidence.
ADS7841PG4 - 12-Bit 4-Ch Serial ADC, 200kHz, 16-PDIP | Texas Instruments
The Texas Instruments ADS7841PG4 is a 12-bit, 4-channel, serial-output sampling analog-to-digital converter (ADC) housed in a 16-pin PDIP (N) package with through-hole mounting. The "G4" suffix designates the Pb-free (lead-free) finish variant of the ADS7841 family, and the part is specified over the -40C to +85C industrial temperature range. The converter integrates a successive-approximation register (SAR) architecture with an on-chip sample-and-hold, supports a synchronous serial (SPI/QSPI/MICROWIRE-compatible) interface, and is specified for a 200 kHz throughput rate with a single +5V analog supply and a logic supply down to +2.7V. What is a SAR ADC? A successive-approximation register analog-to-digital converter is a precision data-acquisition IC that uses an internal binary-search algorithm to convert an analog input to a digital code one bit per clock cycle. SAR ADCs are valued for deterministic latency, low power consumption, excellent DC accuracy, and no pipeline delay, making them the workhorse for multiplexed multi-channel data acquisition, industrial process control, and portable instrumentation. The ADS7841PG4 belongs to the data-acquisition ADC category and provides broader data acquisition density in the semiconductor hierarchy. Key features include 4 single-ended or 2 differential input channels, programmable resolution (8 bits or 12 bits), ±1 LSB maximum INL and DNL with no missing codes at 12 bits, 72 dB SINAD, and a low 2 mW typical power dissipation at 200 kHz throughput on a +5V supply. The reference voltage (VREF) is independent and can be varied from 100 mV up to VCC, giving an input voltage range of 0V to VREF. An auto power-down mode reduces dissipation between conversions. Typical applications include pen-touch screen digitizers (the part's original target market), industrial process-control analog front ends, portable battery-powered measurement instruments, multi-channel sensor signal conditioning, and digital multimeter (DMM) front ends. The wide input range and reference flexibility make it well-suited for low-voltage sensor bridges and 4-20 mA current-loop digitization after a shunt resistor. When designing with the ADS7841PG4, place 100 nF decoupling capacitors close to both VCC and VREF, keep analog and digital grounds joined only at one point, and route DCLK, DIN, DOUT, CS, and BUSY traces short and away from noisy digital lines. Use the auto power-down mode (PD1=PD0=0) to keep average current under 1 mA in battery-powered applications.
ADS7842E - 12-Bit 4-Channel 200 kHz SAR ADC | Texas Instruments
The Texas Instruments ADS7842E is a 12-bit, 4-channel, successive-approximation-register analog-to-digital converter with a 200 kHz sampling rate and a 28-pin SSOP package. Its single-supply operating range is 2.7 V to 5 V, and its parallel microprocessor interface uses three-state outputs for direct connection to digital buses. An ADC is a data-conversion device that transforms an analog voltage into a numeric value for processing, measurement, or control. The ADS7842E belongs to the SAR ADC family, where a capacitor-based internal DAC successively approximates the input voltage. Within the broader hierarchy, it is a data-converter IC, an interface IC, and a semiconductor designed for data-acquisition and embedded measurement systems. Key features include four analog inputs through a multiplexer, 12-bit resolution, a 200 kHz conversion rate, and ±1 LSB integral and differential nonlinearity. The converter also provides 72 dB signal-to-noise and distortion ratio and low power dissipation of 2 mW. These characteristics suit precision measurements where four analog signals must be digitized rapidly without employing a high-power switching converter. Internally, the ADS7842E combines a four-channel analog multiplexer, 12-bit capacitor-based SAR converter, sample-and-hold amplifier, microprocessor interface, and parallel three-state output drivers. The tri-state outputs allow the device to share digital bus connections with other peripherals, reducing contention when the processor does not select the converter. The reference voltage is adjustable, supporting analog ranges selected by the system designer. Typical applications include industrial data acquisition, test and measurement equipment, battery-powered instrumentation, and process-control systems. The four-channel input structure reduces the need for multiple converters when several slowly changing sensors must share one digital interface. The 200 kHz sampling capability also supports higher-rate sampled measurements when settling and signal-conditioning requirements are satisfied. The primary design consideration is analog signal conditioning. Inputs must remain within the converter's specified operating range, and the reference, supply, and bypass connections require careful layout. A quiet reference and short analog traces are especially important because gain, noise, and conversion accuracy depend on the complete analog signal chain rather than on resolution alone. This page combines manufacturer specifications, practical application guidance, interface considerations, and structured comparisons with compatible Texas Instruments ordering variants. These engineering details help distinguish the ADS7842E from related converter families and simplify footprint and procurement planning.
ADS7842E/1KG4 - 12-Bit 4-Ch 200kHz SAR ADC | Texas Instruments
The Texas Instruments ADS7842E/1KG4 is a 12-bit, 4-channel, successive-approximation-register (SAR) analog-to-digital converter that samples at up to 200 kHz and delivers parallel 3-state outputs in a 28-pin SSOP (DB) tape-and-reel package. It integrates a capacitor-based SAR ADC, a sample-and-hold amplifier, a microprocessor-compatible interface, and three-state parallel output drivers. Maximum linearity error is 0.0488% (1 LSB), reference input range is 3 V or 5 V, and power consumption is approximately 2 mW at the rated throughput. The G4 suffix indicates Pb-free, RoHS-compliant assembly on tape and reel. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that uses a binary-search algorithm against an internal capacitive DAC to resolve one bit per clock cycle. SAR ADCs sit in the broader hierarchy of ADCs (successive approximation, sigma-delta, pipeline, flash), and within mixed-signal data acquisition ICs. SAR converters are favored where low latency, deterministic throughput, and moderate resolution (8-16 bit) matter, such as in multiplexed sensor front ends and process control loops. Key features include a 200 kHz maximum sample rate, 4 single-ended analog input channels with internal multiplexer, 12-bit no-missing-codes resolution, ±1 LSB max INL, ±1 LSB max DNL, and a parallel interface that drops directly onto 8-/16-bit microprocessor data buses. The device accepts a 2.7 V to 5.5 V analog supply and digital supply, supports an external reference, and includes a power-down mode that drops quiescent current to microamp levels for battery-powered designs. Architecturally, the ADS7842 uses a charge-redistribution DAC switched by the SAR logic clocked from the external oscillator applied to the CLK pin. The sample-and-hold front end captures the input on the rising edge of CS, and conversion completes within 16 clock cycles. Parallel 3-state drivers allow the data bus to be shared with other peripherals without external buffers. Typical applications include industrial process control (multi-loop PLC analog front ends), data acquisition systems, multi-channel instrumentation, medical patient monitoring front ends, and battery management analog input aggregation. The 4-channel input count makes the part cost-effective when 2-4 sensors must be read through one ADC. Designers should size the external reference decoupling carefully (typically 10 uF tantalum in parallel with 0.1 uF ceramic) and ensure the CLK pin is driven with a clean 50%-duty-cycle waveform between 0.1 MHz and 2.5 MHz. Avoid routing digital outputs directly beneath the analog input traces to minimize digital-to-analog coupling into the next conversion cycle.
ADS7843E - 12-Bit Resistive Touch Controller | Texas Instruments
Texas Instruments ADS7843E is a 12-bit sampling analog-to-digital converter with a synchronous serial interface and integrated low-on-resistance switches for driving a four-wire resistive touch screen. It supports conversions up to 125 kHz, operates from a single 2.7 V supply, and typically consumes 750 uW at a 125 kHz throughput rate with a 2.7 V supply. The device is offered in a 16-pin SSOP package. A resistive touchscreen controller is an ADC-and-switch combination that measures voltage ratios from a four-wire touch panel. The ADS7843E belongs to the analog-to-digital converter hierarchy, where the ADC digitizes the touch-panel voltage and the synchronous serial interface transfers conversion results to a host processor. Its ratiometric conversion method allows the reference voltage to vary from 1 V to VCC, producing a corresponding input range from 0 V to VREF. Key features include programmable or 12-bit resolution, two auxiliary analog inputs, a four-wire resistive touch-screen interface, and full power-down control. The 125 kHz conversion capability supports responsive touch sampling while the ratiometric measurement approach helps compensate for supply and reference variations. The 16-pin SSOP format also supports compact, surface-mount touchscreen modules. Internally, the controller combines switched inputs, a sampling ADC, a reference path, and a synchronous serial interface. The low-on-resistance switches reduce the load presented to the touch panel, while the auxiliary inputs let the host monitor additional analog signals through the same converter. Conversion results are transferred through the serial interface, allowing the ADS7843E to operate as a peripheral to a microcontroller or embedded controller. Typical applications include four-wire resistive touchscreen panels in industrial HMIs, portable instruments, test equipment, medical-device interfaces, and compact embedded control panels. The 12-bit resolution supports touch-position calculations across a typical X-Y panel, while the 125 kHz sampling rate can be adapted to the host interface and required response time. When connecting the touch panel, maintain the recommended analog layout and route the touch, reference, and serial signals to minimize interference. Select output data rate, reference voltage, and auxiliary-channel multiplexing in software according to the host sampling rate and control-panel responsiveness. This page combines the manufacturer specifications with practical interface guidance, sourcing paths, and a parameter comparison for engineers evaluating touch-screen controllers. It focuses on the ADS7843E itself rather than treating the different order codes as functionally distinct designs.
ADS7844E - 12-Bit 8-Channel 200 kHz ADC | Texas Instruments
The Texas Instruments ADS7844E is a 12-bit, 8-channel serial-output sampling analog-to-digital converter with a synchronous serial interface, 200 kHz conversion rate, and 20-lead SSOP package. It supports eight single-ended input channels or four differential input channels, while operating from a single supply. Typical power dissipation is 3 mW at a 200 kHz throughput rate with a +5 V supply. A sampling ADC is an analog-to-digital converter that acquires an input voltage through a sample-and-hold circuit and converts it into a digital code. The ADS7844E belongs to the ADC > data converter > integrated circuit hierarchy and is designed for compact embedded systems requiring multiple analog measurements, controlled serial output, and low power consumption. Its reference voltage can vary from 100 mV to VCC, with a corresponding input range of 0 V to VREF. The device provides 12-bit resolution, eight single-ended or four differential inputs, and conversion throughput up to 200 kHz. Its synchronous serial interface supports communication with a microcontroller or other digital controller, while shutdown mode reduces power dissipation when conversion activity is not required. The single-supply operation and selectable reference range make the converter useful in industrial control, instrumentation, data acquisition, and embedded analog monitoring systems. The ADS7844E uses a sampling architecture rather than a continuous-time delta-sigma or pipeline architecture. This supports relatively high throughput for a multiplexed converter while keeping the device suitable for low-power embedded designs. Input selection, reference handling, serial timing, and acquisition control are managed through the device interface and external circuitry. The application engineer must account for the settling time of the sample-and-hold network when multiplexing channels at high conversion rates. Typical applications include touch-panel and resistive input scanning, industrial sensor interfaces, programmable gain control systems, battery-powered instrumentation, and factory automation modules. The 8-channel input arrangement is useful when several analog quantities must be measured with one converter. The 3 mW typical dissipation figure makes the part attractive for embedded systems where overall power budget and board area are constrained. Designers should pay close attention to the reference voltage, analog input range, source impedance, acquisition timing, and serial-interface wiring. Input and reference bypassing, grounding, signal conditioning, and digital return-current management can materially affect conversion accuracy. The 20-lead SSOP package also requires adequate lead clearance and careful assembly planning during manual inspection or rework. This product summary combines manufacturer identification, distributor package information, ADS7844 feature descriptions, and cross-reference findings. It distinguishes verified ADS7844E characteristics from unavailable detailed electrical, pricing, and pin-assignment data so engineers can make a traceable initial selection and then confirm the complete operating limits in the official Texas Instruments datasheet.
ADS7844N - 12-Bit 8-Channel SAR ADC | Texas Instruments
The Texas Instruments ADS7844N is a 12-bit, 8-channel serial-output sampling analog-to-digital converter with a synchronous serial interface and a 200 kHz conversion rate. It supports eight single-ended input channels or four differential input channels, operates from a single supply, and is available in a 20-pin SSOP package. A sampling ADC, or successive-approximation-register ADC, converts an analog voltage into a digital code by sampling an input and comparing it with an internal reference through a sequence of approximations. The ADS7844N belongs to the broader ADC, data-converter, and semiconductor hierarchy, and is designed for applications requiring multiple analog measurements, programmable gain, and serial communication with a microcontroller or embedded control system. Key features include 12-bit resolution, eight selectable channels, single-ended or differential input operation, a 200 kHz conversion rate, and an adjustable reference input that can range from 100 mV to VCC. The input voltage range follows the selected reference voltage, allowing the converter to be scaled for sensors, potentiometers, and low-voltage analog signals. The device also includes shutdown functionality to reduce power dissipation when conversions are not required. The ADS7844N uses a synchronous serial interface with serial data output, clock input, chip select, and differential or single-ended input multiplexing. Its typical power dissipation is 3 mW when operating from a 5 V supply at a 200 kHz throughput rate. The reference voltage can be selected independently of the supply, which helps define the full-scale conversion range and improves flexibility when analog signals occupy only a portion of the converter input range. Typical applications include resistive touch-screen controllers, industrial panel interfaces, portable measurement equipment, battery-powered instruments, data acquisition modules, and embedded control systems. A microcontroller can issue a conversion command, select the analog channel, and receive the resulting 12-bit value over the serial interface. In a touch-panel design, the converter can measure the X and Y voltages while its multiplexer and differential-capable inputs support front-end signal conditioning. When laying out the ADS7844N, keep the analog input traces short, provide a stable reference bypass capacitor, and route serial clock and data traces away from sensitive analog inputs. The 20-pin SSOP package has no exposed pad, so thermal performance depends primarily on the PCB copper area, ambient temperature, and conversion workload. Confirm the complete pin-description table in the manufacturer datasheet before assigning PCB nets. This page combines the official TI product information, the manufacturer ADS7844 data sheet, and cross-reference results to support component identification, comparison, sourcing, and board-level design. It also provides application guidance, pin-package references, and an explicit distinction between confirmed drop-in alternatives and devices that require functional rather than footprint-level review.
ADS7861E - 12-Bit, 500 kSPS, 4-Channel Simultaneous ADC | TI
Texas Instruments ADS7861E is a dual, 12-bit, 500 kSPS analog-to-digital converter with four fully differential input channels arranged as two pairs for simultaneous signal acquisition in a 24-pin SSOP (DBQ) package. The converter combines two successive-approximation ADCs with a 2+2-channel architecture, allowing two analog pairs to be sampled simultaneously. An ADC is a mixed-signal semiconductor that converts an analog voltage into a digital code. Within the broader hierarchy of data-converter ICs, the ADS7861E belongs to the successive-approximation ADC family and is used for data acquisition, instrumentation, industrial control, and signal measurement. Its fully differential inputs preserve differential signal integrity between the sample-and-hold amplifier and the ADC input while providing 80 dB common-mode rejection at 50 kHz. The principal specifications include 12-bit resolution, a 500 kSPS conversion rate, four fully differential inputs, two simultaneous-sampling ADC channels, and a 24-pin SSOP package. The operating temperature range shown by the manufacturer ordering information is -40°C to +125°C. These characteristics make the device suitable for systems that require simultaneous acquisition, such as three-phase motor monitoring, vibration analysis, and multichannel process-control instrumentation. Each ADC uses a successive-approximation conversion architecture, providing a practical balance between conversion speed, resolution, power consumption, and implementation complexity. The four inputs are grouped into two pairs, so corresponding channels can be captured together. This arrangement is useful when phase, timing, amplitude, or ratio relationships between paired signals must be preserved during acquisition. Typical applications include industrial motor drive and inverter control, power-system monitoring, vibration and condition-monitoring equipment, process-control loops, and precision instrumentation. Differential input architecture is particularly useful in environments where common-mode noise can otherwise obscure the wanted signal. System designers should still allocate suitable analog filtering and provide compliant input and reference circuitry. The principal design consideration is signal integrity. Input components, routing, grounding, reference stability, and digital-interface timing directly affect conversion performance. The verified sources provide the ADC family, package, resolution, throughput, channel arrangement, common-mode rejection, operating-temperature range, and a starting distributor price; additional electrical limits and a complete pin map must be obtained from the manufacturer datasheet before design release. This page combines verified manufacturer and distributor information, documented drop-in family alternatives, parameter comparisons, and practical selection guidance to support engineering decisions beyond a basic distributor listing.
ADS7861IBRHBRG4 - Dual 12-Bit 500kSPS Simultaneous-Sampling ADC | TI
The Texas Instruments ADS7861IBRHBRG4 is a dual, 500 kSPS, 12-bit, 2+2 channel, simultaneous-sampling analog-to-digital converter (ADC) housed in a 32-pin VQFN (RHB) exposed-pad package. Per-channel throughput of 2 µs and fully-differential input architecture let two signals be digitized at exactly the same instant, eliminating inter-channel skew in three-phase power, vibration, and motor-control signal chains. Internal reference, two sample-and-hold amplifiers, and a serial SPI-compatible interface are integrated, which reduces external part count significantly compared with discrete ADC front-ends. An analog-to-digital converter is a mixed-signal integrated circuit that quantizes a continuous analog waveform into discrete digital codes; simultaneous-sampling ADCs add per-channel track-and-hold amplifiers so all channels capture the input at one common edge, critical for phase-sensitive measurements. Within the broader taxonomy, the ADS7861 sits in the ADC/DAC family, precision-converter sub-class, successive-approximation register (SAR) sub-category, and is qualified for industrial (-40°C to +125°C) ambient operation including automotive temperature grades. Key features of the ADS7861IBRHBRG4 include 12-bit no-missing-codes resolution, ±2 LSB INL (max), dual 2 µs throughput, and four fully-differential inputs arranged as two converter pairs. The serial interface operates in either 2-wire or 3-wire mode, supports daisy-chaining of multiple devices, and is compatible with standard SPI, QSPI, and MICROWIRE framers. A hardware RESET pin and a programmable CONVST trigger simplify timing in deterministic multi-ADC systems. Architecturally, the device uses a charge-redistribution SAR core with input bandwidth exceeding the Nyquist limit, allowing accurate sampling of high-edge transient currents. Low aperture delay and matched internal S/H timing across the two ADCs guarantee channel-to-channel phase alignment within a few nanoseconds, even at full 500 kSPS throughput. Typical applications include three-phase motor-control current and voltage sensing, multi-axis vibration and inertial measurement, simultaneous power-line voltage and current acquisition for power-quality and protective relays, and data-acquisition front-ends requiring per-channel timestamp integrity. Industrial process control loops and digital oscilloscope input stages benefit from the same-skew dual conversion. When designing with the ADS7861, route the analog and digital grounds as a star at the exposed pad, place the 10 µF + 0.1 µF decoupling pair within 3 mm of AVDD, and keep the 50 MHz serial clock traces short and impedance-matched to avoid coupling into the analog front-end. This page aggregates distributor pricing, drop-in package-compatible alternatives, and engineering notes beyond what the manufacturer datasheet alone provides, helping procurement and design engineers evaluate the ADS7861 in context.
ADS7861IRHBRG4 - Dual 500kSPS 12-Bit Simultaneous-Sampling ADC | Texas Instruments
The Texas Instruments ADS7861IRHBRG4 is a dual, 12-bit, 500kSPS analog-to-digital converter (ADC) with four fully differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition. The device integrates two successive-approximation-register (SAR) ADCs with two sample-and-hold amplifiers and is supplied in a 32-pin VQFN (RHB) package with an exposed thermal pad. The fully differential inputs are maintained differential from the sample-and-hold amplifier all the way to the ADC input, preserving common-mode rejection through the signal chain. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that transforms real-world analog signals into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. The SAR (successive approximation register) ADC architecture, the hypernym category that includes the ADS7861IRHBRG4, uses an internal binary-search algorithm and a precision DAC to resolve one bit per clock cycle, providing deterministic latency, low power consumption, and excellent DC accuracy. Within the broader taxonomy, the ADS7861IRHBRG4 belongs to the category of simultaneous-sampling ADCs (which sample multiple channels on the same clock edge) used when phase relationships between channels must be preserved. Key features include a maximum 0.0488% linearity error (1 LSB), 1.625 microseconds per-channel conversion time, serial data interface, and an operating temperature range of -40C to +125C. The 500 kSPS per-channel sample rate (1 MSPS aggregate for the dual converter) supports motor-control, multi-axis vibration, and power-line monitoring applications. The integrated reference and tight channel-to-channel matching further simplify board design by reducing the external component count. Typical applications include three-phase motor current sensing, multi-axis inertial measurement, industrial process control, and power-line protection relays. When migrating from a multiplexed ADC to the ADS7861IRHBRG4, designers can capture multiple phases of a motor or power waveform simultaneously, eliminating the inter-channel skew and phase error that plague sequential-sampling architectures. When designing with this device, pay close attention to PCB layout: route differential pairs symmetrically, decouple AVDD/DVDD separately, and bond the exposed pad to a solid ground plane for thermal dissipation. The -G4 suffix in the part number indicates a Pb-free (lead-free) grade with the green RoHS-compliant finish per TI's packaging nomenclature.
ADS7883SBDBVR - 12-Bit 3MSPS Serial SAR ADC | Texas Instruments
The Texas Instruments ADS7883SBDBVR is a 12-bit, 3-MSPS successive-approximation-register (SAR) analog-to-digital converter (ADC) housed in a 6-pin SOT-23 (DBV) package. It operates from a single 2.7 V to 5.5 V analog supply, draws only 2.7 mA typical at 3 MSPS with a 3 V supply, and provides true 12-bit performance and no missing codes across the full operating range. A SAR ADC is a type of analog-to-digital converter that uses a binary-search algorithm through an internal capacitive DAC and comparator to digitize an analog input one bit per clock cycle. Compared with delta-sigma ADCs, SAR ADCs offer deterministic latency, single-conversion latency (no pipeline delay), and superior behavior for multi-channel multiplexed systems. The SAR architecture sits in the broader hierarchy of ADC architectures alongside flash, sigma-delta, and pipeline converters; within TI's data-converter portfolio, the ADS7883 belongs to the low-power, miniature SAR family targeting space-constrained sensor-interface designs. Key features include a zero-latency conversion (CS-controlled serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP serial ports), an inherent sample-and-hold input, a wide input range of 0 V to VREF (or 0 V to AVDD when using AVDD as reference), and an AVDD-referenced reference input. The SOT-23-6 (DBV) footprint is one of the smallest SAR ADC packages on the market, enabling high-density designs such as portable instrumentation, sensor modules, and optical encoders. The device uses a switched-capacitor architecture with internal clock generation per two that power consumption scales with throughput - at 1 MSPS the supply current drops to roughly 1.5 mA, making it attractive for battery-powered systems. An external serial clock (SCLK) and chip-select (CS) provide glueless processor interfacing, and the SDO output can return to high-impedance when CS is high to allow multi-device SPI bus sharing. Typical applications include optical encoders (angular position sensing), position sensors in industrial automation, portable medical instrumentation (blood-pressure monitors, glucose meters), handheld multimeters, and any space-constrained mixed-signal system requiring 12-bit precision at multi-MSPS throughput. Industrial use cases are well served by the -40 °C to +85 °C operating range of the standard grade. When designing with the ADS7883, place the analog input decoupling capacitor (typically 10 nF to 100 nF in series with the input) and the AVDD bypass capacitor (1 µF) as close to the package as possible. Designers should also verify that the host SPI controller can support the SDO chosen, which is determined by the SCLK chosen, the choice of SCLK fall or rise data launch, and the chosen CS timing relative to the SCLK cycle.
ADS7960SRHBT - 8-Bit 1MSPS 12Ch SAR ADC | Texas Instruments
The Texas Instruments ADS7960SRHBT is an 8-bit, 1-MSPS, 12-channel, single-ended, micro-power, serial interface successive approximation register (SAR) analog-to-digital converter (ADC). It is part of the ADS79xx family, which includes 12-, 10-, and 8-bit pin-compatible multichannel ADCs. The device is available in a 32-pin VQFN (RHB) package with an exposed thermal pad, measuring 5x5 mm. It operates over a temperature range of -40°C to +125°C, making it suitable for industrial and automotive environments. An SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input signal into a digital representation. It is known for its high speed and low power consumption, making it ideal for applications such as data acquisition, industrial process control, and portable instrumentation. The SAR architecture is widely used in multichannel systems where multiple analog signals need to be digitized sequentially. Key features of the ADS7960SRHBT include a 1-MSPS sampling rate, 12 input channels, and a serial peripheral interface (SPI) for communication with microcontrollers or digital signal processors. The device operates from a single 2.7V to 5.25V power supply, and its micro-power consumption makes it suitable for battery-powered applications. The ADC also features a built-in reference and a programmable gain amplifier, reducing external component count. The ADS7960SRHBT uses a capacitive DAC architecture with a successive approximation register, providing accurate conversion with low power dissipation. The device includes a track-and-hold circuit that samples the analog input, and the conversion result is output serially via the SPI interface. The ADC supports both single-ended and pseudo-differential input configurations, offering flexibility in system design. Typical applications for the ADS7960SRHBT include data acquisition systems, industrial process control, motor control, and portable instrumentation. Its 12-channel input capability allows monitoring of multiple sensors or signals, while the SPI interface simplifies connection to a wide range of microcontrollers. The device is also suitable for battery-powered devices due to its low power consumption. When designing with the ADS7960SRHBT, it is important to provide a clean analog supply and proper decoupling to achieve the specified performance. The reference input should be bypassed with a capacitor, and the analog input signals should be buffered if they have high source impedance. The SPI interface should be operated at the correct clock frequency to ensure accurate data transfer.
ADS800E - 12-Bit 40 MSPS ADC | Texas Instruments | Signal Processing
Texas Instruments ADS800E is a 12-bit, 40 MSPS analog-to-digital converter with one input, pipelined conversion, and single-ended or differential input capability in a 28-pin SSOP package. The converter supports an industrial temperature grade of -40°C to +85°C and uses internal references according to the manufacturer product information. Its 12-bit resolution, 40 MSPS sampling rate, and parallel output architecture make it suitable for digital oscilloscopes, industrial measurement systems, communications equipment, and other applications requiring conversion of high-frequency analog waveforms. An ADC is a data-conversion IC that samples an analog voltage and converts it into a digital code for processing, storage, or transmission. The ADS800E belongs to the pipelined ADC family, a multistage architecture commonly used for high-speed conversion. In the signal chain, an ADC sits between an analog front end and digital logic. The analog front end must limit bandwidth, establish suitable signal amplitude, and provide stable reference and supply conditions so that the converter can preserve the useful information contained in the waveform. The principal specifications available for the ADS800E are 12-bit resolution, a maximum sampling rate of 40 MSPS, one input channel, parallel output data, and a 28-pin SSOP package. The ADS800 family supports single-ended and differential inputs and includes internal references. These features distinguish it from general-purpose low-speed converters and position it as a sampling-oriented device for instruments and signal-processing equipment. The manufacturer product page also identifies the ADS800 as pin-compatible with the ADS801 and ADS802. The 40 MSPS conversion capability provides 25 ns between nominal sample periods. This rate is important when capturing repetitive or transient waveforms because it establishes the available time resolution. The 12-bit output represents each sample with 4,096 discrete code levels. Designers must still account for analog front-end bandwidth, acquisition time, settling behavior, clock quality, and the required input range when interpreting these conversion specifications. The supplied source data does not provide complete timing, input-range, reference-voltage, or output-drive details. Typical uses include digital oscilloscopes and waveform analyzers, communications receivers, industrial data-acquisition equipment, audio and low-frequency signal processing, and laboratory instrumentation. Differential input support is valuable when the source must be measured relative to another voltage or when common-mode rejection is important. Single-ended operation can simplify systems where a full differential driver would add cost or board area. A suitable acquisition circuit, source driver, and clock strategy remain necessary in either operating mode. The primary layout consideration is keeping the high-speed analog path short and appropriately terminated. Place the input, reference, and decoupling connections close to their associated pins, maintain a continuous ground reference, and route the parallel digital outputs away from sensitive analog nodes. Because the supplied information does not include a complete verified pin table, the exact pin assignments and exposed thermal requirements must be confirmed in the manufacturer datasheet before PCB release or replacement qualification. This page combines verified manufacturer and distributor facts with family-level drop-in information, engineering-oriented selection guidance, and application analysis. It also distinguishes confirmed compatibility from specifications that remain unavailable, helping engineers evaluate the ADS800E without treating generic ADC assumptions as verified device data.
ADS800U - 12-Bit 40 MSPS ADC | Texas Instruments
The Texas Instruments ADS800U is a 12-bit, 40 MSPS pipelined analog-to-digital converter with single-ended or differential inputs, internal references, and a 28-pin SOIC (DW) package. It accepts a single +5 V supply and operates from -40 °C to +85 °C. These headline values position it for compact, high-speed industrial digitization where 12-bit resolution is sufficient and deterministic sampling is more important than the lowest power available. An ADC is a data-acquisition IC that samples an analog voltage and converts it to a digital code. The ADS800U belongs to the pipelined ADC hierarchy, where multiple internal stages perform conversion in overlapping cycles. This architecture supports high conversion throughput while separating acquisition, digitization, and digital correction functions. Relative to a slow successive-approximation ADC, it is better suited to waveforms, communications, instrumentation, and control loops that need new samples at tens of millions per second. The ADS800U provides a 40 MSPS conversion rate, 12-bit resolution, single-ended and differential input choices, and internal references. Its wideband track-and-hold capability is listed at 65 MHz, allowing the input stage to acquire rapidly changing signals. The converter consumes 390 mW with its internal reference and operates from one +5 V supply, simplifying system power architecture compared with converters requiring several bias rails. The industrial temperature range supports use across controlled indoor and equipment environments. A pined ADC is not simply a physical pinout distinction. The ADS800U is compatible with the ADS801 and ADS802 family, enabling common-layout designs to scale resolution while preserving the 28-pin SOIC footprint. The interface also benefits from an organized digital output and clock structure typical of parallel converters, although timing, input range, and control logic must be checked against the complete manufacturer datasheet before board release. Typical applications include industrial process monitoring, communications infrastructure, digital oscilloscope and waveform-capture systems, communications receivers, and feedback loops for power conversion or motor control. At 40 MSPS, the converter supports a broad analog bandwidth but does not promise that every downstream signal can be captured without aliasing. Input filtering, anti-alias design, source impedance, and clock jitter remain critical to useful system performance. The main design consideration is ensuring that the analog front end, reference path, clock, and digital interface operate within datasheet limits. Use a low-jitter sampling clock, provide stable bypass capacitance, and route the analog inputs away from fast digital edges. Differential operation can improve noise immunity when the source can drive it, while single-ended operation can simplify system wiring. Both approaches require verified input-voltage and common-mode limits. This product data combines verified manufacturer, distributor, and cross-reference information with application guidance and selection criteria that are not present in the raw listing. It also distinguishes exact drop-in alternatives from packaging-only orderable variants, helping engineers reuse PCBs without mistaking a reel code for an electrically equivalent part.
ADS801U - 12-Bit 25-MSPS ADC | Texas Instruments
Texas Instruments ADS801U is a 12-bit, 25-MSPS monolithic analog-to-digital converter in a 28-pin SOIC (DW) package. It uses a single +5 V supply, accepts single-ended or differential analog inputs, and includes a 12-bit quantizer, wideband track-and-hold circuit, reference circuitry, and three-state outputs. Its low-power CMOS design consumes 270 mW, making it suitable for instrumentation and signal-processing systems that require compact, high-speed parallel data conversion. An ADC is a data-converter category that samples an analog voltage and converts it into a digital code for processing, storage, display, or control. The ADS801U belongs to the parallel-output pipelined ADC family and is positioned between general-purpose mixed-signal processing and high-speed measurement. Its 12-bit resolution provides 4096 quantization levels, while the 25-MSPS sampling rate supports rapidly changing signals when the analog front end and system clock are designed appropriately. Key features include no missing codes, a 65 MHz track-and-hold bandwidth, internal references, single-ended or differential input configuration, and compatibility with ADS800 and ADS802 pin arrangements. The single +5 V supply simplifies system power design, while the three-state outputs support bus-oriented connection to digital logic. The supplied technical data identifies a 54 mA supply current and an industrial temperature grade of -40 °C to +85 °C for the ADS801U package. The converter uses a small-geometry CMOS process and a pipelined conversion architecture. Pipelining supports high throughput by dividing the conversion process into stages, although system designers must account for the device's specified acquisition and conversion timing. The 28-pin SOIC package is intended for surface-mount assembly and includes analog, digital, reference, and control connections. Typical applications include industrial measurement, communications equipment, test and measurement instrumentation, control systems, and embedded signal acquisition. The 25 MSPS rate is useful when sampling waveforms or feedback signals, while 12-bit resolution balances data fidelity against digital interface bandwidth. Differential input support can improve signal integrity when the source is balanced and the PCB layout is controlled. Designers should verify the exact pinout, analog input range, reference configuration, timing, output coding, and package details in the manufacturer datasheet before layout. Keep analog and digital return paths separated, place bypass capacitance near the supply pins, and provide a controlled input source. The SOIC footprint also allows easy breadboard and prototype assembly, although production layouts should minimize parasitic capacitance and digital crosstalk.
ADS802E - 12-Bit 10-MSPS ADC | Texas Instruments | SSOP-28
The Texas Instruments ADS802E is a 12-bit, 10-MSPS sampling analog-to-digital converter in a 28-pin SSOP package. It supports single-ended or differential analog inputs, includes an internal reference, and is specified for operation from a single +5 V supply. Its 65 MHz track-and-hold bandwidth enables the device to capture rapidly changing input signals while the 12-bit quantizer provides 4096 digital output codes. The verified product information identifies the ADS802E as a low-power monolithic converter with approximately 250 mW internal-reference power and no missing codes. An ADC is an analog-to-digital converter, a data-acquisition IC that samples a continuous voltage and maps each sample to a numeric code for processing by a microcontroller, DSP, FPGA, or digital system. The ADS802E belongs to the sampling ADC family and includes the analog input, sample-and-hold circuit, quantization function, reference, and digital interface in one device. This integration reduces external circuitry compared with discrete signal chains, while the single +5 V supply simplifies system power architecture. Key verified characteristics include 12-bit resolution, a 10-MSPS sampling rate, single-ended and differential input capability, internal references, and pin compatibility with ADS800/ADS801. The wideband track-and-hold stage is listed at 65 MHz, helping preserve input bandwidth for high-frequency sampling applications. The device is supplied in a 28-SSOP package, and the verified distributor listing describes its industrial temperature grade and gull-wing terminal form. The converter's architecture is intended for instrumentation, communications, industrial control, and embedded measurement systems where a compact, high-speed ADC is useful. Differential operation can help reject common-mode noise when the analog source and receiver share environmental interference. Single-ended operation is useful when the signal source is referenced to the same ground system as the converter. Engineers must still account for analog input range, reference accuracy, source impedance, sampling timing, clock jitter, and digital-interface levels in the complete design. Typical applications include waveform capture, sensor signal conditioning, communications receivers, industrial process monitoring, and embedded data acquisition. Because the input stage is bandwidth-limited by the track-and-hold network, the input signal and amplifier must deliver adequate bandwidth and settling behavior at the selected sampling rate. The ADS802E is not a drop-in substitute for every ADC in the market; the verified pin-compatible ADS800/ADS801 family is the appropriate starting point when package and interface details match. For layout, place input, reference, and ground connections according to the manufacturer datasheet and keep high-speed digital traces away from sensitive analog nodes. Confirm the selected package footprint and pin assignments before PCB release. The verified data does not provide complete pricing, lifecycle, compliance, or all electrical timing details, so those values must be confirmed with the manufacturer or an authorized distributor. This page combines verified manufacturer and distributor product information with package, sourcing, application, and design guidance intended to reduce component-selection risk. It is intended as an engineering reference, not as a substitute for the complete ADS802 datasheet, application notes, or final qualification records.
ADS802U - 12-Bit 10-MSPS ADC | Texas Instruments
The Texas Instruments ADS802U is a 12-bit, 10-MSPS single-channel pipelined analog-to-digital converter in a 28-pin SOIC package. It accepts single-ended or differential input signals, operates from one +5 V supply, and provides three-state parallel outputs. Its 65 MHz track-and-hold bandwidth supports high-frequency waveform capture, while its internal reference simplifies system design. An ADC is a data converter that samples an analog voltage and converts it into a digital code for processing, measurement, or control. The ADS802U belongs to the ADC, data-converter, and signal-processing semiconductor hierarchy. Its parallel interface exposes multiple data bits at once, making it suitable for systems where data must be captured rapidly without requiring a serial-link redesign. The principal verified features are 12-bit resolution, 10 MSPS sampling, a 65 MHz wideband track-and-hold input, single-ended or differential input configuration, internal reference, no missing codes, and a stated typical power consumption of 250 mW. A single +5 V analog supply and separate digital-supply arrangement provide flexibility in mixed analog and digital systems. The converter uses a pipelined architecture to balance throughput and multibit conversion. According to the Texas Instruments ADS802 product information, the device includes a 12-bit quantizer, wideband track-and-hold circuit, reference, and three-state outputs. These blocks capture an input during acquisition and present parallel digital results for downstream logic. Typical uses include industrial instrumentation, communications receivers, digital oscilloscope and waveform-analysis systems, process-control equipment, and laboratory measurement systems. The 10 MSPS throughput is appropriate for capturing rapidly changing waveforms when 12-bit resolution is more important than very high channel count. Designers should provide compliant analog and digital supply bypassing, route high-speed parallel outputs carefully, and account for acquisition time and settling requirements at the chosen sampling rate. Because only verified source values are reproduced here, unresolved electrical limits, timing values, and compliance declarations are explicitly identified in the validation fields.
ADS803E - 12-Bit 5-MSPS ADC | Texas Instruments
The Texas Instruments ADS803E is a 12-bit, 5-MSPS single-input pipelined analog-to-digital converter in a 28-SSOP package. According to the verified Texas Instruments product information, it accepts a flexible analog input range of 2 V to 5 Vpp, supports internal or external reference operation, and provides an over-range indicator. Its headline combination is 12-bit resolution, 5 MSPS throughput, and an 82 dB SFDR at Nyquist in a 28-pin SSOP package. An ADC is an analog-to-digital converter, a semiconductor that samples a continuous voltage and produces a numeric code for processing, storage, or transmission. The ADS803E belongs to the pipelined ADC family and the broader data-converter and signal-processing semiconductor hierarchy. Its single input channel and parallel output interface make it suitable for measurement and signal-acquisition systems that require deterministic sampling rather than a communications-oriented serial interface. Verified features include 82 dB SFDR at Nyquist, 69 dB SNR, 115 mW low power, and 0.25-LSB low differential nonlinearity. The device also includes internal-reference capability, a flexible input range, and an over-range indicator. These features help simplify calibration and signal conditioning when the source can be scaled to the selected input range. The internal reference can be programmed for a 2 Vpp input range for improved spurious performance and easier source drive, as stated in the verified Texas Instruments description. The ADS803E uses a pipelined conversion architecture to support 5 MSPS sampling while maintaining 12-bit output resolution. Its parallel digital output requires careful routing on a mixed-signal PCB, while the analog input and reference network must be kept away from high-current digital return paths. Designers should pay particular attention to input settling time, reference noise, clock jitter, output timing, and the distinction between signal bandwidth and Nyquist-limited performance. Typical applications include IF and baseband digitization, CCD imaging scanners, and test instrumentation. These uses benefit from the ADC's flexible input range, over-range indication, and sampling capability, provided that the downstream processing bandwidth matches the selected sample rate. The 28-SSOP package is useful for conventional surface-mount assembly but requires adequate pin escape routing and thermal consideration. When designing around the ADS803E, begin by defining the analog signal range and reference arrangement, then verify that the driver can settle within the acquisition interval at 5 MSPS. Use short, controlled traces for the analog input and reference, provide a stable clock, and route digital outputs away from sensitive analog nodes. This page consolidates the verified product identity, distributor listing, datasheet references, application positioning, and replacement constraints.
ADS803E/1KG4 - 12-Bit 5MSPS ADC w/ Int/Ext Ref | Texas Instruments
The Texas Instruments ADS803E/1KG4 is a 12-bit, 5 MSPS (mega-samples per second) pipelined analog-to-digital converter (ADC) with an internal 2.5V reference and a single differential analog input, housed in a 28-pin SSOP (Shrink Small-Outline Package) for industrial-grade applications operating from -40C to +85C. According to the TI product page, the ADS803 is also pin-compatible with the 10 MHz ADS804 and the 20 MHz ADS805, allowing designers to scale sampling rate without PCB rework. The /1KG4 suffix denotes a tape-and-reel, Pb-free (G4) shipping pack. A pipelined ADC is a type of analog-to-digital converter that resolves each analog sample across multiple low-resolution stages, with each stage feeding its residue to the next clock cycle. This pipeline architecture enables high throughput (MSPS-class) at moderate die area, making pipelined ADCs the workhorse of high-speed data acquisition, communications, video, medical imaging, and test instrumentation. The ADS803E/1KG4 sits in the broader hierarchy of: ADC -> data converter -> signal chain IC -> semiconductor. Key differentiating specifications include a programmable 2 Vp-p or 5 Vp-p input range, internal or external reference option, TTL/CMOS-compatible digital outputs, and differential linearity that supports demanding imaging applications. Digital error-correction techniques ensure excellent DNL (differential non-linearity), while the low distortion and high SNR provide the extra margin needed for communications and video signal chains. The ADS803E/1KG4 architecture uses a multi-stage switched-capacitor pipeline with digital error correction, achieving true 12-bit performance at 5 MSPS without the latency penalty of successive-approximation (SAR) ADCs. Its single +5V analog supply simplifies power-tree design versus split-rail converters, and the differential analog input rejects common-mode noise from upstream sensor or driver stages. Typical applications include medical imaging front-ends, communications baseband IF sampling, CCD/CMOS image sensor digitizers, video digitizing, and test-and-measurement instrumentation where 12-bit resolution at 5 MSPS is sufficient. The 28-SSOP footprint is also a near-universal upgrade path to the ADS804 (10 MSPS) and ADS805 (20 MSPS) for future-proof designs. When designing with this converter, ensure the analog input common-mode voltage stays within the specified range, place a small RC anti-aliasing filter at AINP/AINN, and decouple AVDD and DVDD with separate 0.1 uF + 10 uF ceramic capacitors close to the pins. The internal reference eliminates an external reference IC in cost-sensitive designs; for best DC accuracy use an external 2.500V reference. According to TI, the digital outputs can drive TTL and CMOS loads directly without external buffers below 5 pF. This page synthesizes distributor pricing, drop-in alternatives from the TI ADS80x family, and PCB design notes that go beyond the manufacturer datasheet - including thermal and reference-decoupling guidance not found on TI.com.
ADS804E - 12-Bit 10-MSPS Pipelined ADC | Texas Instruments
The Texas Instruments ADS804E is a 12-bit, 10-MSPS, single-input pipelined analog-to-digital converter housed in a 28-pin SSOP package. It supports a flexible 2 V peak-to-peak input range, internal or external reference operation, and parallel digital output. The converter also provides an overrange indicator and is designed for signal-chain systems requiring high sampling speed and controlled spurious performance. An ADC is an integrated circuit that converts an analog voltage into a digital code. A pipelined ADC uses multiple internal stages and parallel output data, allowing a higher conversion rate than many single-stage architectures. The ADS804E belongs to the ADC and data-converter hierarchy, where resolution, sampling rate, input range, reference accuracy, interface timing, and noise performance determine suitability. The ADS804E combines 12-bit resolution with a 10 MSPS sampling rate. Verified distributor and manufacturer listings identify the device as a one-input pipelined converter with a flexible 2 Vp-p input range, internal and external reference options, 80 dB SFDR at Nyquist, 69 dB SNR, 180 mW low power, and differential linearity of ±0.3 LSB. These figures make it appropriate for IF and baseband digitization, CCD imaging, scanners, and test instrumentation. The device uses a high-bandwidth track-and-hold stage to minimize acquisition-related error and maintain useful performance at higher input frequencies. Its parallel interface supports straightforward connection to digital logic, FPGA input blocks, DSPs, or data-capture systems. The internal reference can simplify system design, while external-reference operation can be useful when multiple converters must share a precision reference or when calibration requirements demand tighter reference control. Typical implementations include communications receivers, industrial measurement systems, imaging equipment, laboratory instruments, and embedded data-acquisition platforms. The 10 MSPS rate allows the converter to capture rapidly changing waveforms, while 12-bit resolution provides 4096 digital codes for the selected analog input range. Designers should pay close attention to input common-mode voltage, analog signal amplitude, reference stability, source impedance, clock jitter, and the timing relationship between acquisition, conversion, and parallel output. The manufacturer datasheet should be consulted for the complete pinout, timing diagrams, input-range configuration, electrical limits, and recommended application circuit. This page combines verified manufacturer and distributor information with engineering guidance, application context, and comparison notes to support component selection and PCB planning.
ADS804U - 12-Bit 10-MSPS Parallel ADC | Texas Instruments
The Texas Instruments ADS804U is a 12-bit, 10-MSPS analog-to-digital converter with one analog input, a parallel data interface, and a 28-pin SOIC package. According to the verified ADS804 family data, the converter offers 80 dB SFDR at Nyquist, 69 dB SNR, approximately 180 mW low power, and ±0.3-LSB differential nonlinearity. Its flexible analog input range supports 2 V to 5 Vpp signals, while internal or external reference options help adapt the converter to different signal-chain requirements. An ADC is an analog-to-digital converter, a data-acquisition IC that samples a continuous voltage and converts it into a numeric code for processing, storage, or transmission. The ADS804U belongs to the parallel-interface ADC family within the broader semiconductor and data-converter hierarchy. Its 12-bit resolution provides 4,096 code levels, while its 10-MSPS sampling rate supports high-speed waveform capture, IF and baseband digitization, CCD imaging, scanner systems, and test instrumentation. Key performance characteristics combine 10-MSPS throughput with 12-bit resolution, 80-dB Nyquist SFDR, and 69-dB SNR. The flexible input range is useful when the source signal amplitude is not fixed, and the overrange indicator provides a way to detect conditions beyond the nominal conversion range. The ±0.3-LSB differential nonlinearity figure indicates that code-width variation is tightly controlled for precision acquisition and signal-fidelity requirements. The ADS804U uses a parallel interface rather than a serial data interface. This architecture is appropriate when downstream logic can capture many output bits at each conversion event. Designers should account for timing between the sample clock, output data, and downstream logic, and should use controlled-impedance routing where digital transition activity could affect analog signal integrity. The 28-pin SOIC package provides a conventional surface-mount footprint but requires careful handling and layout because the analog input, reference connections, clock, and parallel outputs are all present in one package. Typical applications include IF and baseband digitization, CCD imaging, scanners, communications receivers, and general-purpose test equipment. The 10-MSPS rate is especially relevant to intermediate-frequency or baseband sampling where a compact parallel ADC can feed a DSP, FPGA, or digital capture system. Compared with lower-speed converters, the ADS804U trades higher sampling throughput for greater PCB and timing complexity. The most important design consideration is the analog and digital partitioning around the converter. Place input and reference components close to their associated pins, route the analog input away from high-current clock and parallel-output paths, and define the return-current path continuously. Check the manufacturer datasheet for the exact pin names, reference arrangement, timing specifications, and recommended application circuit before releasing a PCB layout. This product page consolidates verified family specifications, package information, application guidance, and design considerations for engineers evaluating the ADS804U. Distributor inventory, exact pricing, lifecycle detail, and every complete electrical characteristic should be reconfirmed from the current manufacturer and distributor records before procurement or design sign-off.
ADS805E - 12-Bit 20-MSPS Pipelined ADC | Texas Instruments
The Texas Instruments ADS805E is a 12-bit, 20-MSPS pipelined analog-to-digital converter with a 28-pin SSOP package. It supports internal or external reference operation and a programmable analog input range of 2 Vp-p to 5 Vp-p. Published performance figures include 74 dB SFDR, 68 dB SNR, 300 mW low power, and 0.25-LSB differential nonlinearity. The device is temperature-rated from -40°C to 85°C and is designed for high-speed signal acquisition where a compact surface-mount ADC is needed. An ADC is a data-acquisition integrated circuit that samples an analog voltage and converts it into a digital code for processing, storage, or transmission. More specifically, the ADS805E belongs to the pipelined ADC family, which uses multiple internal stages to support high conversion rates. Its 12-bit resolution represents each sample with 4,096 digital codes, while its 20-MSPS sampling capability supports bandwidths below the converter's Nyquist limit when appropriate analog filtering and clock design are used. Key features include one analog input, pipelined 12-bit conversion, internal or external reference support, and selectable input ranges. The 2 Vp-p range is identified in the manufacturer information as easy to drive with a single operational amplifier and as providing the best spurious performance. The converter's 74 dB SFDR and 68 dB SNR indicate strong performance for communications, imaging, and test-instrumentation signal chains, while the stated 300 mW power level helps guide thermal and supply planning. The ADS805 architecture combines a high-bandwidth track-and-hold circuit with pipelined stages. The high-bandwidth track-and-hold minimizes acquisition-time effects, while low jitter and linear sampling behavior help preserve signal fidelity. The flexible input range allows the system designer to trade signal amplitude against dynamic range and gain requirements. The ADC should be paired with a clean analog supply, a suitable clock source, input protection, and filtering matched to the intended bandwidth. Typical applications include studio cameras, IF and baseband digitization, copiers, communications receivers, video signal acquisition, and test instrumentation. In each case, the 20-MSPS rate allows sampling above the signal bandwidth, while the 12-bit code width and reported dynamic performance provide a practical balance between resolution, speed, and integration complexity. The ADS805E is particularly suitable when the existing board already expects the 28-pin SSOP footprint and the associated pin-compatible family arrangement. Designers should verify the exact package, pinout, reference configuration, input range, and timing requirements against the manufacturer datasheet before layout release. Pay attention to analog input bandwidth, settling time, clock jitter, reference noise, and output interface implementation. The most important design trade-off is ensuring that the input driver and external network do not degrade the converter's measured noise and spurious-free dynamic-range performance. This page consolidates the verified ADS805E product identity, distributor listings, manufacturer family data, pin-compatibility evidence, and practical application guidance. It is designed to help engineers evaluate the converter for procurement and board-level design without treating unsupported specifications as confirmed facts.
ADS805E/1KG4 - 12-Bit 20 MSPS ADC | Texas Instruments | 28-SSOP
The Texas Instruments ADS805E/1KG4 is a 12-bit, 20 MSPS pipelined analog-to-digital converter (ADC) housed in a 28-pin SSOP package. It supports a single 5V analog supply, provides an internal reference (with optional external reference), and features a flexible input range programmable between 2 Vp-p and 5 Vp-p. The 20 MSPS sampling rate, 12-bit resolution, and pipelined architecture make it suitable for mid-speed data acquisition, CCD imaging, video digitisation, and digital communications baseband I/Q sampling. An ADC (Analog-to-Digital Converter) is a data-acquisition integrated circuit that samples continuous analog signals and converts each sample into a discrete digital code. Within the power-management and signal-chain taxonomy, the ADS805 belongs to the SAR/pipelined ADC family, the data-converter category, and the broader mixed-signal semiconductor hierarchy. Pipelined ADCs trade slightly higher latency (typically 3-5 clock cycles) for much higher sampling rates than successive-approximation (SAR) architectures, making them ideal for continuous-stream applications above 5 MSPS. Key features include 12-bit resolution with no missing codes, 20 MSPS maximum sampling rate, internal or external reference operation, an out-of-range indicator flag, single +5V supply operation, and a flexible parallel digital interface. The differential input stage is designed for ease of drive with a single op-amp in most configurations. The 2 Vp-p input range is the easiest to drive with a single op amp and provides the best spurious performance, while the 5 Vp-p range maximises dynamic range in low-noise front ends. The ADS805E uses a multi-stage pipelined architecture with proprietary error correction to achieve low differential non-linearity (DNL) and integral non-linearity (INL). The pin-compatible ADS804 (10 MSPS) and ADS803 (5 MSPS) allow designers to scale performance without PCB layout changes. The internal reference is laser-trimmed, and the part supports both CMOS-compatible and low-voltage differential outputs depending on configuration. Typical applications include digital video broadcast equipment, CCD-based imaging systems, document scanners, baseband I/Q sampling in software-defined radio, portable instrumentation, and industrial process control front ends. The combination of 5V single-supply operation and small 28-SSOP footprint suits space-constrained designs that require higher dynamic range than 8/10-bit alternatives. When designing with this device, ensure the analog input is properly buffered with a wideband op-amp capable of settling within half a clock cycle. The internal reference requires a stable bypass capacitor on the REFT/REFB pins; inadequate decoupling can degrade SNR by 1-2 dB. Power-supply rejection must be considered if the 5V rail is shared with switching converters.
ADS805U - 12-Bit 20MHz Pipelined ADC | Texas Instruments
Texas Instruments ADS805U is a 12-bit, 20MHz sampling analog-to-digital converter ADC with a high-bandwidth track-and-hold circuit, supplied in a 28-pin SOIC package. The converter uses a pipelined architecture to deliver high dynamic range and strong spurious performance up to and beyond the Nyquist rate. Its 20MSPS conversion rate and 12-bit resolution make it suitable for communications, instrumentation, industrial control, and signal-processing systems that require accurate sampling of rapidly changing analog inputs. An ADC is a mixed-signal integrated circuit that converts an analog voltage into a digital code. Within the semiconductor hierarchy, the ADS805U is an ADC, a data-converter IC, and a member of the broader analog and mixed-signal semiconductor family. The 28-lead SOIC is a surface-mount package suitable for conventional PCB assembly and provides a defined pin arrangement for power, reference, analog input, digital output, clock, and control connections. The ADS805's primary features include a 20MSPS sampling rate, 12-bit resolution, high dynamic range, and a wide-bandwidth track-and-hold stage. The sampling architecture allows the input to be captured during the acquisition interval and converted through a pipelined sequence during subsequent clock cycles. The manufacturer describes the track-and-hold circuit as providing excellent spurious performance through and beyond the Nyquist region, which is important when sampling high-bandwidth or high-frequency signals. The device can use its internal reference or accept an external reference, according to the manufacturer product page. It can also be programmed for a 2V peak-to-peak input range. That range is suitable for driving from a single op-amp output and is associated with good spurious performance. Designers still need to evaluate the full datasheet for input bandwidth, clock jitter, dynamic performance, power requirements, digital output timing, and reference arrangements before finalizing a design. Typical applications include digital communications, high-speed data acquisition, industrial process monitoring, medical instrumentation, test and measurement equipment, and embedded signal-processing systems. In these systems, the 20MSPS sampling rate can support bandwidth-limited acquisition while the 12-bit converter provides a practical balance between resolution, throughput, and implementation complexity. A key design consideration is clock and analog-signal integrity. The track-and-hold input, reference network, converter clock, and digital output traces require careful PCB layout because jitter and ground bounce can affect conversion accuracy. The 28-pin SOIC footprint is suitable for a new design, but engineers should also verify obsolete-part availability and sourcing before committing to it. This page consolidates the verified manufacturer specifications, source links, pricing information, same-family drop-in candidates, application guidance, and engineering considerations into one searchable engineering reference. It also distinguishes confirmed pin-compatible devices from unverified alternatives rather than presenting speculative substitutions as drop-in parts.