ADC/DAC
المنتجات (2,700+)
ADCS7478AIMFE - 1MSPS 8-Bit SAR ADC SOT-23-6 | Texas Instruments
The Texas Instruments ADCS7478AIMFE is a low-power, monolithic CMOS 8-bit analog-to-digital converter that operates at 1 MSPS, housed in a 6-pin SOT-23 (DBV) package with a single-ended analog input and an SPI/QSPI/MICROWIRE-compatible serial interface. Key specifications include 8-bit resolution, 1 MSPS sampling rate, successive approximation register (SAR) architecture with internal track-and-hold, low power consumption, and an industrial operating temperature range of -40C to +85C. The part is part of the ADCS7476/77/78 family, where the 7476 is 12-bit, 7477 is 10-bit, and 7478 is 8-bit - all sharing the same SOT-23-6 / LLP-8 package footprint and pinout for scalable resolution across designs. The ADCS7478AIMFE is built on a low-power CMOS process and is intended as a drop-in upgrade path for the legacy Analog Devices AD747x series. Its SAR architecture provides deterministic latency and no pipeline delay, which simplifies event-triggered sampling in microcontrollers and DSPs. The serial output is compatible with SPI, QSPI, MICROWIRE, and many common DSP serial interfaces, allowing direct connection to a wide variety of host processors without glue logic. Typical applications include portable and battery-powered instrumentation, industrial process control loops, motor control feedback, optical sensor front-ends, and consumer audio/video signal monitoring where compact size, low power, and 8-bit resolution are sufficient. The wide supply range supports both 3.3V and 5V system rails. When designing with this device, ensure the analog input is bandwidth-limited well below the 1 MSPS Nyquist frequency and that the reference voltage is low-impedance and well-decoupled to avoid conversion noise.
ADCS7478AIMFX - 8-Bit 1MSPS SAR ADC, SOT-23-6 | Texas Instruments
The Texas Instruments ADCS7478AIMFX is an 8-bit, 1 MSPS successive-approximation-register (SAR) analog-to-digital converter in a 6-pin SOT-23 package with a single-ended analog input, SPI/MICROWIRE/QSPI-compatible serial interface, and single 2.7 V to 5.25 V supply operation using the supply as the reference. The part is specified over the -40 °C to +85 °C industrial temperature range and ships on 3000-piece tape-and-reel. A SAR ADC is a successive-approximation analog-to-digital converter: it performs a binary search through an internal capacitive DAC to converge on the input voltage in N conversion cycles, where N is the resolution in bits. Compared with delta-sigma or pipeline ADCs, SAR converters offer deterministic latency, no pipeline delay, and excellent dynamic performance at moderate sample rates, which makes them the workhorse for multiplexed data acquisition, motor control, and instrumentation front-ends. The ADCS7478 uses the supply pin itself as the conversion reference, eliminating an external reference and supporting the smallest possible footprint for cost- and space-constrained designs. The serial interface is compatible with SPI, QSPI, and MICROWIRE hosts, allowing direct connection to most microcontrollers and DSPs without glue logic. The device also offers a power-down pin to minimize supply current between conversions. Architecturally, the ADCS747x family is a CMOS SAR core with internal track-and-hold, scaled to deliver 1 MSPS throughput at low power dissipation. The ADCS7478 is the 8-bit resolution member of the family; the ADCS7476 (12-bit) and ADCS7477 (10-bit) share the same SOT-23-6 pinout, allowing designers to migrate resolution without changing PCB layout. Typical applications include portable instrumentation, isolated data acquisition, optical modules, and consumer electronics where a small-footprint ADC with digital-friendly serial output is needed. Battery-powered sensor readouts benefit from the integrated power-down mode between samples. When designing with the ADCS7478, add 0.1 µF decoupling close to the supply pin and keep the analog input trace short to minimize coupling from the serial clock. Note that using VDD as the reference couples digital noise into conversions; for higher-precision requirements, use an external ADC with a dedicated reference. This page synthesizes verified distributor pricing, drop-in alternatives including the TI /NOPB lead-free variant and the ADCS7478AIMFE extended-temperature option, and practical design notes that go beyond the manufacturer datasheet.
ADCV08832CIM/NOPB - 8-Bit 38kSPS SAR ADC, Serial I/O | TI
The Texas Instruments ADCV08832CIM/NOPB is a low-voltage, 8-bit successive approximation register (SAR) analog-to-digital converter with a 3-wire MICROWIRE-compatible serial interface, integrated sample-and-hold, and up to 38 kSPS sampling rate, housed in an 8-pin SOIC (0.154 inch / 3.90 mm width) package. An SAR ADC is a type of data converter that uses a binary-weighted capacitive DAC and a comparator to perform a bit-by-bit search against the input voltage, settling one conversion result per N clock cycles for N bits of resolution. SAR ADCs sit within the broader hierarchy of analog-to-digital converter -> data converter -> mixed-signal IC -> semiconductor, and are favored for low-power, latency-deterministic acquisition of single-ended signals in embedded systems. Key features include 8-bit resolution, single +2.7V to +5.5V analog and digital supply operation (low-voltage CMOS), a 3-wire MICROWIRE/QSPI/MICROWIRE-PLUS compatible serial data interface (CS, SCLK, DOUT), an internal sample-and-hold, and an automotive operating temperature grade of -40C to +125C. The ADCV08832 uses a charge-redistribution SAR architecture with an input sample-and-hold that captures the input on the rising edge of CS, then performs eight internal clock cycles of bit-trial conversion. The serial engine shifts out the MSB-first conversion result on DOUT, clocked by SCLK, with CS framing each conversion. The architecture is fully self-clocked from SCLK after the input acquisition phase, so no external high-frequency master clock is needed for the conversion core. Typical applications include portable instrumentation front-ends, automotive sensor signal acquisition (thermistor, RTD, potentiometer, throttle position), loop-powered 4-20 mA transmitter readback, low-cost microcontroller analog input expansion, and embedded data logging where 8-bit resolution is acceptable. When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to the VDD pin and keep the analog input trace short and guarded to preserve the SAR's ~38 kSPS settling behavior. The reference voltage (VREF) must be stable and decoupled - reference noise couples directly into the conversion LSBs.
ADE7751ARSZRL Single-Phase Energy Meter IC | Analog Devices
The Analog Devices ADE7751ARSZRL is a single-phase, fault-tolerant electrical energy measurement IC supplied in a 24-SSOP package. According to the manufacturer product page, it is intended for two-wire distribution systems and provides instantaneous and average real-power measurements derived from line-voltage and current inputs. The verified distributor listing identifies the device as an energy-metering IC in a 24-SSOP package. The manufacturer also states that the ADE7751 is pin compatible with the AD7751 and has the same functionality, with synchronized low-frequency and high-frequency outputs under all load conditions. These features place the ADE7751 within the energy-metering IC category, where analog signal conditioning, digital conversion, power calculation, calibration, and fault detection are integrated into one device. The supplied data does not provide a complete electrical parameter table, so values such as exact current-input range, accuracy grades, conversion rates, temperature limits, and calibration details are marked for verification in the specifications. An electrical energy measurement IC is a specialized mixed-signal semiconductor that converts voltage and current waveforms into digital information used for watt-hour accumulation, load monitoring, and utility metering. In the broader device hierarchy, an energy-metering IC belongs to analog and mixed-signal ICs, then to power-monitoring and measurement systems, and ultimately to power-management electronics. It is designed to reduce the number of separate components needed between analog sensing inputs and a metering processor. The ADE7751 is particularly relevant to single-phase, two-wire distribution systems where accurate real-power information and fault tolerance are required. The verified manufacturer information identifies these key engineering features: instantaneous real-power output, average real-power output, external gain calibration between channels, synchronized low-frequency and high-frequency outputs, and fault-tolerant operation. The synchronization feature is significant in metering designs because it helps coordinate output signals across changing load conditions. The manufacturer comparison also establishes compatibility with the AD7751, which is a useful starting point for legacy or redesign evaluations. The exact output logic, register map, filter behavior, and calibration method should be confirmed in the Analog Devices datasheet before schematic sign-off. The ADE7751ARSZRL is suitable for utility-grade single-phase metering, energy-monitoring modules, load-control equipment, industrial power instrumentation, and embedded measurement systems. In a practical circuit, the voltage and current channels are connected to external sensing networks, while the device performs measurement and exposes digital information to a host processor or display path. Designers should pay attention to input filtering, grounding, calibration components, fault-detection thresholds, and the distinction between average power and instantaneous power. The supplied data confirms the package and application category but does not confirm exact timing, accuracy, or environmental limits. The principal design consideration is verifying the complete Analog Devices datasheet and device-specific ordering information before layout or firmware decisions are finalized. The verified distributor result lists the part as tape-and-reel packaged, but it does not provide the reel quantity. The product should therefore be treated as an engineering component whose electrical limits, calibration requirements, and environmental ratings remain subject to datasheet verification. This page combines manufacturer identity, distributor package information, replacement research, and practical selection guidance rather than inventing unverified performance values. This data record provides a concise component overview, verified source links, package classification, and engineering-oriented replacement context for ADE7751ARSZRL. The alternatives array is intentionally limited to same-brand parts explicitly supported by the supplied Analog Devices cross-reference material; unsupported cross-brand claims are not presented as drop-in replacements.
ADE7754ARZ - 3-Phase Energy Metering IC | Analog Devices
The Analog Devices ADE7754ARZ is a production polyphase multifunctional energy-metering IC with a serial port, a 4.75 V to 5.25 V supply range, and a 24-pin SOIC package. It performs active-energy, apparent-energy, and RMS measurements for three-phase systems while supporting 3-phase/3-wire and 3-phase/4-wire configurations. According to the verified distributor data, its measurement error is 0.1%, input impedance is 370 kOhm, and typical supply current is 7 mA. An energy-metering IC is a specialized data-acquisition and signal-processing semiconductor that converts voltage and current waveforms into digital measurements for billing, load monitoring, and power-quality analysis. The ADE7754 belongs to the metering-IC, analog-signal-processing, power-monitoring, and semiconductor hierarchies. Its integrated processing reduces the need for separate analog-to-digital converters, arithmetic logic, and host-side waveform analysis in utility-class energy meters. Key verified features include reference circuitry, an integrated temperature sensor, current-channel and voltage-channel RMS calculation, active and apparent energy measurement, and a serial communications interface. The manufacturer describes the device as compatible with IEC 687/61036 metering requirements. Its 370 kOhm input impedance supports the analog front-end design, while the 0.1% measurement error provides a concrete accuracy target for energy-meter calibration and validation. The ADE7754 combines analog input conditioning, measurement engines, calibration paths, registers, and serial-interface logic. This integration lets a meter manufacturer process polyphase signals close to the sensing nodes and send calculated results to a host controller. Digital calibration and serial connectivity can simplify production setup, but firmware and register compatibility must be checked carefully when replacing or redesigning an existing meter platform. Typical applications include utility meters, industrial power monitors, three-phase energy meters, calibration systems, and digital power-monitoring equipment. Its 24-SOIC package is widely supported by conventional surface-mount assembly, although the narrow 0.295-inch body width requires attention to routing density and assembly constraints. For a new design, begin with the manufacturer datasheet wiring, input filtering, reference components, grounding, and calibration sequence rather than copying an unrelated meter schematic. Confirm the exact serial protocol, register map, production calibration flow, and analog channel scaling before PCB release. This page consolidates verified specifications, pricing references, package details, application guidance, and replacement limits. It also distinguishes confirmed drop-in candidates from metering devices that may be only functional alternatives, helping engineers avoid incompatible redesign assumptions.
ADE7755ARSZRL - Single-Phase Energy Meter IC | Analog Devices
The Analog Devices ADE7755ARSZRL is a single-phase energy-metering integrated circuit with a pulse output, supplied in a 24-pin SSOP package. It is designed for high-accuracy electrical energy measurement and is identified by Analog Devices as an energy metering IC whose performance surpasses the accuracy requirements quoted in IEC 1036. The device combines analog-to-digital conversion, reference circuitry, digital signal processing, and energy accumulation for metering systems. An energy-metering IC is a specialized data-acquisition and power-management semiconductor used to measure voltage and current, calculate electrical energy, and provide a pulse or digital indication to the host system. The ADE7755 places its multiplication and filtering functions in the digital domain, while the only analog circuitry is associated with the ADCs and reference circuit. This architecture is intended to improve measurement stability and reduce sensitivity to analog component variation. The ADE7755 is suited to single-phase utility meters, residential energy monitors, load-management equipment, industrial energy measurement, and smart-grid sensing nodes. Its pulse output provides a convenient interface for meter calibration, energy accumulation, or host-system counting. The ADE7755 is available in the ADE7755ARSZRL ordering code, identified in distributor results as a 24-SSOP tape-and-reel part. The 24-pin SSOP package provides the physical interface for analog inputs, digital control, communication, and pulse-output functions. Designers should follow the manufacturer datasheet for exact pin assignments, recommended current and voltage sensing circuits, calibration procedures, filtering values, and electrical limits. The verified distributor descriptions identify the ADE7755 as a single-phase meter IC with pulse output and do not provide a complete set of numeric operating specifications in the supplied search results. A key design consideration is maintaining the integrity of the voltage and current sensing path. Input filtering, resistor matching, reference stability, clock selection, PCB isolation, and calibration determine whether the meter's achieved accuracy matches its calculation capability. In a production design, evaluate the complete analog front end rather than relying on IC specifications alone. This page synthesizes the verified manufacturer product description, distributor availability information, package identification, and engineering-oriented application guidance. It distinguishes documented facts from parameters that require confirmation in the manufacturer datasheet, helping engineers evaluate whether the ADE7755ARSZRL is appropriate for a new metering design.
ADE7758ARWZ - 3-Phase Energy Metering IC | Analog Devices
The Analog Devices ADE7758ARWZ is a high-accuracy, 3-phase electrical energy measurement IC with a serial interface and two pulse outputs. According to the provided manufacturer data, it is packaged in a 24-pin SOIC and operates with AVDD = DVDD = 5 V ± 5%, an on-chip reference, and a 10 MHz crystal input. The device measures active, reactive, and apparent energy and provides RMS information through integrated signal-processing circuitry. The ADE7758 belongs to the energy-metering IC hierarchy: energy meter IC -> metering and monitoring IC -> analog and mixed-signal semiconductor -> power-management and measurement system component. Its role is to convert three-phase voltage and current signals into digital energy measurements and calibrated pulse information for utility meters, industrial energy monitors, and revenue-grade metering equipment. The provided manufacturer description identifies second-order sigma-delta ADCs, a digital integrator, reference circuitry, and a temperature sensor. These blocks support accurate current and voltage acquisition while reducing the need for extensive external analog processing. The serial interface allows a host controller or microcontroller to retrieve measurement and calibration data, while the two pulse outputs support meter-rate signaling and external counting equipment. Operation is specified with analog and digital supplies of 5 V ± 5%, AGND and DGND at 0 V, a 10 MHz crystal at CLKIN, and a temperature range from -40°C to +85°C. The 24-SOIC package is suitable for conventional surface-mount PCB assembly. Exact input-current, voltage, accuracy, calibration, and electrical-current ratings are not included in the supplied verified excerpts, so those values must be taken from the manufacturer datasheet before design sign-off. Typical applications include three-phase utility meters, industrial submeters, energy-quality monitoring, active and reactive energy accumulation, and systems requiring per-phase information. The two pulse outputs are useful where an external counter, display system, or data logger needs a compact energy-rate signal rather than only a serial data stream. For implementation, preserve the specified analog and digital grounding scheme, decouple both supply domains, route the current and voltage channels for the datasheet-recommended analog layout, and account for the 10 MHz crystal requirement. This page combines the supplied manufacturer and distributor information with practical application guidance and clearly marks parameters that require datasheet verification.
ADE7763ARSZRL - Single-Phase Energy Metering IC | Analog Devices
The Analog Devices ADE7763ARSZRL is a production single-phase active and apparent energy metering IC with a 4.75 V to 5.25 V supply range, a 3 mA supply current, and a 20-SSOP package. It integrates two second-order, 16-bit sigma-delta ADCs, fixed-function signal processing, reference circuitry, and a temperature sensor for energy and RMS measurements. What is an energy metering IC? An energy metering IC is a specialized analog and digital signal-processing semiconductor that measures voltage and current, then calculates active energy, apparent energy, RMS values, and line-related timing. The ADE7763 sits within the broader energy-measurement and power-monitoring IC hierarchy, combining sensor interfacing and calculation functions that would otherwise require separate ADCs, DSP logic, and control circuitry. The verified product data identifies high measurement accuracy, a 390 kOhm input impedance, and support for IEC 61036/60687, IEC 62053-21, and IEC 62053-22. Its on-chip digital integrator enables direct interface to current sensors with di/dt output. These features make the device suitable for single-phase utility meters, energy-monitoring equipment, and industrial power-measurement products. The two 16-bit sigma-delta ADC channels provide the measurement front end, while the integrated digital processing handles the energy and RMS calculations. A 3 mA supply current supports low-power metering designs, and the 4.75 V to 5.25 V supply range is appropriate for conventional 5 V meter electronics. The manufacturer describes the ADE7763 family as production, with a list price starting from $2.96 as shown on the official product page. Typical deployments include residential single-phase energy meters, smart-meter signal chains, industrial energy monitors, and power-quality measurement modules. In these systems, the IC is placed near the voltage and current sensing paths, with the sensor outputs conditioned before entering the metering channels. Accurate external component selection, layout isolation, and stable reference circuitry remain essential. The principal design consideration is ensuring the voltage and current channels are properly scaled and protected while preserving the accuracy promised by the metering architecture. Engineers should verify the complete schematic against Analog Devices guidance and account for sensor type, line-voltage range, calibration, and temperature performance. This page combines verified manufacturer and distributor information with application guidance, comparison placeholders, and design notes. Exact pricing and lead time should be confirmed at purchase because distributor inventory and commercial terms can change.
ADE7868AACPZ - 3-Phase Energy Metering IC | Analog Devices
The Analog Devices ADE7868AACPZ is a high-accuracy, three-phase electrical energy measurement IC with second-order sigma-delta ADCs, serial interfaces, and three flexible pulse outputs, housed in a 40-lead LFCSP-WQ surface-mount package measuring 6 x 6 mm. The device is designed for energy metering, industrial power monitoring, and revenue-grade measurement systems. It supports measurement of fundamental and harmonic energy quantities, including active energy and reactive energy processing covered by the ADE7868A family. An energy-metering IC is a specialized analog and digital signal-processing component that converts voltage and current information into calibrated measurements, accumulated energy values, and output events. Within the broader hierarchy, the ADE7868AACPZ belongs to the energy-metering IC class, then to specialized data-conversion and power-management system ICs. Its integrated signal chain reduces the need for external analog front-end components while supporting accurate multi-phase measurement. According to the Analog Devices ADE7868A product-page description, the device incorporates second-order sigma-delta analog-to-digital converters, a digital integrator, reference circuitry, and the processing required for fundamental and harmonic energy calculations. The ADE7868A and ADE7878A family also includes IRQ0 and IRQ1 interrupt request pins and low-power modes intended to preserve energy accumulation during tampering situations. The package and electrical details identify the ADE7868AACPZ as a 40-pin, square, surface-mount LFCSP-WQ device. The supplied distributor results identify the package as 40-LFCSP-WQ, 6 x 6 mm. The Arrow listing further describes the package as a 40-pin LFCSP with exposed pad and tray packaging. These package details make it important to follow the Analog Devices land-pattern and exposed-pad recommendations during PCB design. Typical applications include three-phase utility meters, industrial energy monitors, building power-management systems, submeters, power-quality instruments, and energy accumulation platforms. The serial interface allows a host controller or meter microcontroller to retrieve measurements, while flexible pulse outputs support external counting, calibration, or energy-pulse signaling. For robust implementation, maintain the specified input-network topology, provide suitable analog filtering, and observe the exposed-pad thermal and soldering requirements. This page combines verified distributor listings, manufacturer-family information, comparison data, and practical design guidance; unavailable device-specific parameters are explicitly marked rather than estimated.
ADE7868AACPZ-RL - 3-Phase Energy Meter IC | Analog Devices
Analog Devices ADE7868AACPZ-RL is a high-accuracy, 3-phase electrical energy measurement IC with serial interfaces and three flexible pulse outputs, packaged in a 40-LFCSP-WQ 6 mm × 6 mm package. It incorporates second-order Σ-Δ ADCs, a digital integrator, reference circuitry, and signal processing for energy and RMS measurements. An energy-metering IC is a specialized analog and digital semiconductor that converts voltage and current signals into digital measurements used by utility meters, industrial monitors, and power-management equipment. The ADE7868A family belongs to the broader energy-measurement IC hierarchy and combines analog front-end conversion with digital processing, calibration, communication, and pulse-output functions. Key features of the ADE7868AACPZ-RL include support for three-phase electrical measurement, second-order Σ-Δ ADCs, serial interfaces, three flexible pulse outputs, reference circuitry, and digital integration. The manufacturer describes the family as providing total fundamental and harmonic active, reactive, and apparent energy measurement and RMS calculations, depending on the specific device and configuration. Technically, the device is designed to process several power-line signals while transferring results to an external host through serial communication. Its measurement architecture is intended to support accurate energy accumulation and metering functions without requiring the same processing to be implemented entirely in external hardware. The exact input ranges, accuracy grades, supply limits, operating temperature, and electrical limits are not included in the provided verified snippets and must be confirmed from the complete manufacturer datasheet before design release. Typical uses include three-phase utility energy meters, industrial power-monitoring equipment, building energy-management systems, revenue-grade metering platforms, and embedded measurement instruments. The three flexible pulse outputs can support meter interfaces, while serial interfaces allow the host processor to retrieve measurement and configuration information. For PCB design, use the manufacturer’s recommended land pattern and verify the exposed-pad thermal and electrical requirements in the complete package drawing. The metering accuracy depends on signal conditioning, current and voltage sensing components, analog-layout discipline, grounding, filtering, and firmware calibration. This product-data page combines the verified manufacturer and distributor identity, pricing reference, package information, application context, and replacement-screening guidance. Unverified electrical values are intentionally marked for engineering review rather than inferred.
ADE9153AACPZ - Autocalibrated Energy Meter IC | Analog Devices
The Analog Devices ADE9153AACPZ is a high-accuracy, single-phase energy metering IC with mSure autocalibration, packaged in a 32-lead LFCSP measuring 5 mm by 5 mm. It supports automatic current- and voltage-channel calibration for shunt-based meters, including Class 1 and Class 2 designs. The verified product information identifies it as an energy-metering data-acquisition and ADC/DAC-specialized device. What is an energy metering IC? An energy metering IC measures voltage and current, extracts real-power information, and supplies the measurement engine for electricity meters and energy-monitoring equipment. It belongs to the signal-chain hierarchy of analog-to-digital converter, data-acquisition IC, energy-metering IC, and semiconductor. In a single-phase shunt-based meter, the voltage channel provides the potential reference while the current channel senses the voltage drop across a shunt. The principal differentiator is mSure autocalibration. According to the Analog Devices ADE9153A product page, the feature measures the complete current and voltage signal paths and automatically calibrates the meter without requiring an accurate source or an accurate reference meter when a shunt resistor is used. This can simplify production calibration while supporting both Class 1 and Class 2 meters. The ADE9153A is intended for accurate single-phase energy measurement rather than generic data acquisition. Its dedicated metering architecture integrates the measurement and calibration functions needed to implement a compact meter signal chain. Exact converter resolution, accuracy grades, supply range, current-channel range, output interface, and electrical limits were not included in the supplied source excerpts and must be confirmed in the manufacturer datasheet before schematic or firmware release. Typical applications include single-phase residential electricity meters, smart-meter signal-chain boards, industrial energy monitors, utility sub-metering modules, and energy-measurement front ends using a shunt sensor. Autocalibration is particularly useful in volume manufacturing, where reducing dependence on calibrated reference instruments can streamline test and calibration workflows. A robust implementation must follow the manufacturer’s recommended input network, grounding, filtering, PCB layout, and decoupling guidance. Designers should verify the analog input ranges and exposed-pad connection directly in the official datasheet because those values are not present in the verified excerpts. Firmware must also implement the specified measurement sequence and calibration data flow rather than treating autocalibration as a substitute for final meter accuracy testing. This page consolidates the verified manufacturer and distributor information, distinguishes documented benefits from unavailable electrical details, and provides engineering guidance for selecting and integrating the ADE9153AACPZ in single-phase energy-metering equipment.
ADE9153AACPZ-RL - Single-Phase Auto-Calibrating Meter IC | ADI
The Analog Devices ADE9153AACPZ-RL is a single-phase energy-metering integrated circuit with automatic current- and voltage-channel calibration, supplied in a 32-LFCSP package measuring 5 mm by 5 mm. The verified distributor data identifies its supply-voltage range as 2.97 V to 3.63 V and its operating-temperature range as -40°C to 85°C. It integrates the measurement functions required to acquire voltage and line-current information for accurate single-phase metering while reducing production calibration requirements. An energy-metering IC is a specialized data-acquisition and power-management component. In the measurement hierarchy, it sits between analog signal conditioning, analog-to-digital conversion, and the embedded processing that calculates real energy, RMS quantities, and related billing information. Unlike a general-purpose ADC, the ADE9153A family is configured for voltage and current channels used in electricity meters. Its autocalibration function can calibrate both channels when a shunt resistor is used as the current sensor, without requiring an accurate external source or reference meter. The verified sources identify the ADE9153AACPZ-RL as a single-phase meter IC with auto-calibration. Analog Devices also offers the EV-ADE9153ASHIELDZ evaluation shield for prototyping energy-measurement systems. The shield includes a shunt resistor for line-current measurement and supports Arduino Uno, Arduino Zero, and ESP8266 platforms, with an Arduino library and application examples available from the product page. These resources make the device suitable both for production meter designs and early firmware evaluation. The 32-LFCSP package requires careful PCB layout, exposed-pad thermal management, and short analog routing around the voltage and current inputs. Digital communication and supply decoupling paths should be separated from sensitive analog nodes to preserve measurement quality. Because the supplied data does not state accuracy, channel resolution, clock frequency, output interface, or absolute maximum ratings, those parameters must be confirmed in the manufacturer datasheet before schematic sign-off. Typical uses include single-phase residential electricity meters, compact energy monitors, smart plugs, industrial sub-metering units, and Arduino-based measurement prototypes. The -40°C to 85°C range supports deployments across commercial and industrial ambient conditions, while the 2.97 V to 3.63 V supply range fits a regulated 3.3 V system. The -RL suffix and verified packaging references identify the tape-and-reel ordering option for automated assembly. For a new design, use the Analog Devices evaluation shield and library to validate signal scaling, calibration behavior, and host-interface requirements before committing to a production board. In production, reproduce the manufacturer's recommended grounding, input filtering, exposed-pad, and decoupling layouts exactly where possible. This page combines verified distributor data, official evaluation resources, and engineering-focused selection guidance without inventing unprovided performance values.
ADE9430ACPZ - 3-Phase Energy Metering IC | Analog Devices
The ADE9430ACPZ is a highly accurate, fully integrated, polyphase energy and power quality monitoring device from Analog Devices. It features seven high-performance, 24-bit sigma-delta ADCs, achieving 101 dB SNR at 8 kSPS with PGA = 1. The device supports a wide input voltage range of ±1 V (707 mV rms full scale at gain = 1) with differential inputs, and offers a maximum channel drift of ±25 ppm/°C including the ADC and internal reference. Housed in a 40-lead LFCSP-WQ (6x6 mm) package, it is designed for three-phase energy metering and power quality monitoring applications. A polyphase energy metering IC is a specialized integrated circuit that measures electrical parameters such as voltage, current, power, and energy in multi-phase power systems. It typically includes high-resolution ADCs, a digital signal processing (DSP) core, and communication interfaces to enable accurate monitoring and billing. The ADE9430 belongs to the class of energy measurement ICs, which are essential components in smart meters, industrial power monitoring, and grid infrastructure. Key features of the ADE9430ACPZ include seven 24-bit sigma-delta ADCs, 101 dB SNR, ±25 ppm/°C drift, and a SPI-compatible interface. The integrated high-end reference ensures low drift over temperature, making it suitable for precision measurement. The device operates over a wide temperature range and is available in a compact LFCSP package, enabling dense PCB layouts. The ADE9430's DSP core performs complex calculations for active, reactive, and apparent energy, as well as power quality parameters such as harmonics and sag/swell detection. This allows for real-time monitoring and analysis without external processing. The SPI interface facilitates communication with microcontrollers, and the device supports multiple operating modes for flexible configuration. Typical applications include three-phase smart meters, industrial power monitoring, and power quality analyzers. The high accuracy and low drift make it ideal for revenue-grade metering, while the power quality features support grid stability monitoring. The device is also used in EV charging stations and renewable energy systems. When designing with the ADE9430, ensure proper PCB layout for analog and digital separation to maintain SNR. Use appropriate anti-aliasing filters on the analog inputs and provide a clean power supply. The SPI interface should be isolated if used in high-voltage environments.
ADS1100A3IDBVRG4 - 16-Bit Self-Calibrating I2C ADC | Texas Instruments
The Texas Instruments ADS1100A3IDBVRG4 is a 16-bit, self-calibrating, delta-sigma analog-to-digital converter (ADC) with a single differential input, integrated programmable gain amplifier (PGA), internal oscillator, and I2C-compatible serial interface, packaged in a 6-pin SOT-23. The 'A3' device-slave-address suffix sets the I2C address to 0x48 (GND) or 0x4A (VDD) depending on the ADDR pin, and the part supports user-programmable data rates of 8, 16, 32, or 128 samples per second (SPS). It operates from a single 2.7 V to 5.5 V supply and performs conversions ratiometrically using the supply as the reference voltage. A delta-sigma (sigma-delta) ADC is a type of oversampling converter that uses a modulator loop and a digital decimation filter to achieve high resolution at low bandwidth. Within the broader converter taxonomy it belongs to the precision-ADC family, sitting between successive-approximation register (SAR) ADCs (faster, lower-resolution) and integrating ADCs (slowest, highest noise-rejection). The ADS1100 integrates the modulator, digital filter, PGA, and I2C interface into a single chip, making it a complete data-acquisition system in a tiny SOT-23-6 footprint suitable for board-constrained designs. Key features include a maximum integral nonlinearity (INL) of 0.0125% of full-scale range, no missing codes at 16 bits, continuous self-calibration, single-cycle conversion, PGA gains of 1, 2, 4, or 8, and low noise of 4 uVp-p. The continuous self-calibration scheme removes offset and gain drift in real time, eliminating the periodic user calibration required by many competing converters and simplifying long-running sensor measurements. Typical applications include portable instrumentation, weigh scales, industrial process control, factory-automation analog front-ends, battery monitors, and consumer sensor read-out boards where a small footprint, low power consumption, and I2C connectivity outweigh the need for higher sample rates or true differential bipolar inputs. The ratiometric conversion principle makes the ADS1100 especially attractive for bridge sensor measurements powered by the same rail as the ADC. A key design consideration is the supply used as the reference: any noise or drift on VDD appears directly in the conversion, so a clean, low-impedance supply with adequate decoupling is essential. The ADS1100A3IDBVRG4 is supplied on a 3000-piece tape-and-reel and is qualified for the -40 C to +85 C industrial temperature range. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for selection, sourcing, and PCB implementation guidance.
ADS1100A5IDBVRG4 - 16-Bit Self-Calibrating Sigma-Delta ADC | TI
The Texas Instruments ADS1100A5IDBVRG4 is a 16-bit, self-calibrating, single-channel delta-sigma analog-to-digital converter (ADC) with an integrated programmable gain amplifier (PGA) and I2C-compatible serial interface, housed in a 6-pin SOT-23 (DBV) package. Key headline parameters include 16-bit resolution with no missing codes, 128 samples per second (SPS) maximum data rate, and an input voltage range of 2.7V to 5.5V from a single supply. The device also offers an INL of 0.0125% of FSR maximum and 4 uVp-p low noise. An ADC (Analog-to-Digital Converter) is a semiconductor device that converts continuous analog voltage signals into discrete digital codes for processing by microcontrollers or DSPs. Delta-sigma (sigma-delta) ADCs use oversampling and noise shaping to achieve high resolution at low data rates, making them ideal for precision DC measurement applications such as industrial sensors, weigh scales, and temperature monitoring. Within the power management and signal chain hierarchy, the ADS1100 belongs to data acquisition ICs -> ADCs -> delta-sigma ADCs -> precision measurement converters. Key features include continuous self-calibration that corrects internal drift on every conversion, a single-cycle conversion mode for low-latency readings, and a programmable gain amplifier with gain of 8x that allows small sensor signals to be digitized directly without external amplification. The internal oscillator eliminates the need for an external clock, and the I2C interface simplifies connection to microcontrollers with only two wires. The architecture combines a delta-sigma modulator with a digital filter providing simultaneous 50Hz and 60Hz line rejection at the 8/16/32/128 SPS data rate selections. The self-calibration mechanism performs both offset and gain correction continuously, ensuring the 16-bit no-missing-codes performance is maintained across the operating range without user intervention. Conversions are performed ratiometrically using the power supply as the reference voltage, simplifying external circuit design. Typical applications include portable instrumentation, weigh scales, industrial process control, temperature and pressure sensor digitizers, battery management monitors, and consumer measurement products where PCB space is constrained. The SOT-23-6 footprint is among the smallest 16-bit ADC packages available, enabling single-board designs where board real estate is critical. When designing with this device, choose appropriate data rate vs. noise trade-off: 8 SPS gives best noise performance for thermocouple or weigh-scale signals, while 128 SPS enables faster response for general-purpose monitoring. Decouple VDD with 100nF close to the pin. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ADS1100A6IDBVRG4 - 16-Bit I2C ADC with PGA, SOT-23-6 | TI
The Texas Instruments ADS1100A6IDBVRG4 is a self-calibrating, 16-bit, single-channel delta-sigma analog-to-digital converter (ADC) with a programmable gain amplifier (PGA), integrated oscillator, and I2C-compatible serial interface, housed in a 6-pin SOT-23 package. The A6 address variant targets designers who need address bit A0 tied high. It operates from a single 2.7 V to 5.5 V supply, performs conversions at 8, 16, 32, or 128 samples per second (SPS), and supports PGA gains of 1, 2, 4, and 8 for full-scale input ranges of ±2.048 V down to ±0.256 V when using the supply as reference. An ADC (analog-to-digital converter) is a data-acquisition component that converts continuous analog signals into discrete digital codes; delta-sigma ADCs in particular use oversampling and noise shaping to achieve high resolution at low sample rates. Within the broader hierarchy, this part is a precision sigma-delta ADC, which sits beneath successive-approximation (SAR) and pipeline ADCs in the data-converter taxonomy, and it ultimately belongs to the power-management-adjacent signal-chain IC family. The ADS1100's continuous self-calibration corrects internal drift on every conversion, yielding no missing codes at 16 bits and INL of 0.0125% of FSR maximum. Key features include single-cycle conversion, an effective 4 uVp-p low-noise floor at the higher PGA gains, on-chip PGA with gain 1/2/4/8, and ratiometric conversion that uses VDD as the reference for absolute measurements when an external reference is not desired. The I2C interface simplifies connection to virtually any microcontroller, and the I2C address is partially set by the A6 / A1 / A4 / A0 suffix scheme to allow multiple devices on one bus. Architecturally, the part combines a switched-capacitor delta-sigma modulator, a digital sinc³ filter, an offset and gain calibration DAC, and a PGA front end. The single-cycle settling of the digital filter ensures clean step responses for multiplexed inputs and removes the long filter-tail artifacts typical of higher-order sinc filters used at higher data rates. Typical applications include portable instrumentation, weigh scales, industrial process controls, factory-automation sensor transmitters, consumer battery-powered sensors, and temperature monitoring with thermocouples or RTDs using the PGA for small-signal gain. It is well suited wherever PCB area is constrained but 16-bit resolution is required. When designing, place 0.1 uF decoupling capacitors close to VDD and keep the analog inputs away from digital return currents; using VDD as the reference simplifies layout but means regulator noise directly couples to the conversion result.
ADS1100A7IDBVRG4 - 16-Bit Self-Calibrating Delta-Sigma ADC | Texas Instruments
The Texas Instruments ADS1100A7IDBVRG4 is a 16-bit, self-calibrating, delta-sigma analog-to-digital converter with differential inputs, up to 16 bits of resolution, and a programmable gain amplifier offering gains of 1, 2, 4, or 8, packaged in a 6-pin SOT-23 (DBV). It operates from a single 2.7V to 5.5V supply, performs ratiometric conversions using the supply as the reference, and communicates via an I2C-compatible serial interface. An ADC (analog-to-digital converter) is an integrated circuit that converts continuous analog signals into discrete digital codes for processing by microcontrollers or DSPs. The delta-sigma (sigma-delta) architecture oversamples the input and uses noise-shaping to achieve high resolution and excellent noise rejection in low-frequency measurement applications such as sensor signal conditioning, industrial instrumentation, and portable measurement equipment. Key features of the ADS1100A7IDBVRG4 include no missing codes at 16-bit resolution, INL of 0.0125% of FSR maximum, continuous self-calibration that eliminates offset and gain drift over time and temperature, single-cycle conversion settling, low noise of 4 microvolts peak-to-peak, and a low quiescent current of 90 microamps typical. The programmable data rate of 8, 16, 32, or 128 samples per second allows the user to trade resolution for speed. The device integrates an oscillator, PGA, and I2C interface on-chip, eliminating the need for external components beyond bypass capacitors. The differential input topology rejects common-mode noise, making it well-suited for bridge sensors, thermocouples, and battery-cell monitoring. The internal clock and self-calibration simplify firmware and reduce long-term drift. Typical applications include portable instrumentation, weigh scales, industrial process control, consumer temperature monitoring, and battery-powered sensor nodes. The SOT-23-6 footprint enables integration into space-constrained designs, while the I2C interface supports multi-device bus configurations for scalable measurement systems. When designing with this part, note that the SOT-23-6 package requires careful PCB thermal management at higher data rates, and the I2C address is factory-programmed by part number suffix. Designers should consult the TI ADS1100 datasheet for the address selection options and self-calibration timing considerations. This page synthesizes distributor pricing, drop-in alternatives from the ADS1100 family, and practical design notes not found in the manufacturer datasheet.
ADS1110A3IDBVR - 16-Bit 240SPS Delta-Sigma ADC | Texas Instruments
The Texas Instruments ADS1110A3IDBVR is a precision, continuously self-calibrating 16-bit delta-sigma analog-to-digital converter with differential inputs, an internal 2.048V reference, an onboard PGA, and an I2C-compatible serial interface, all housed in a 6-pin SOT-23 package. It supports conversion rates of 15, 30, 60, and 240 samples per second, operates from a single 2.7V to 5.5V supply, and provides an input range of ±2.048V differentially when used with its internal reference. The SOT-23-6 footprint makes it one of the smallest self-contained 16-bit ADCs on the market. A delta-sigma ADC is a converter architecture that uses oversampling and digital filtering to achieve high resolution and excellent noise rejection, especially at low bandwidths. The ADS1110 belongs to the precision ADC category within data converters, sitting in the hierarchy: delta-sigma ADC -> ADC -> data converter -> signal chain IC -> semiconductor. The architecture's inherent noise-shaping makes it well suited for low-frequency, high-accuracy measurements such as temperature, strain-gauge, and battery monitoring, where successive-approximation (SAR) ADCs often trade off noise for speed. Key differentiating features include the integrated 2.048V reference with 5 ppm/°C typical drift, a programmable PGA with gains of 1, 2, 4, or 8, and a continuous self-calibration scheme that corrects internal offset and gain errors on every conversion. The device also integrates an internal oscillator, eliminating the need for an external clock, and offers four I2C slave addresses via the AD0 pin (only two of which are unique to the SOT-23-6 ADS1110A0/A1/A2/A3/A4/A5/A6/A7 family, depending on order code). From a technical perspective, the converter uses a third-order modulator followed by a digital sinc³ filter, providing simultaneous 50 Hz and 60 Hz mains rejection at the 15 SPS data rate. The internal PGA lets full-scale ranges be programmed from ±2.048V down to ±0.256V, allowing direct interfacing with low-amplitude sensors such as thermocouples, bridge outputs, and shunt currents without external instrumentation amplifiers. Typical applications include portable instrumentation, weigh scales, industrial process control, smart transmitters, consumer electronics, and factory automation. It is also frequently used in battery monitoring and fuel gauging thanks to its low supply current and differential input structure. When designing with the ADS1110, pay attention to the I2C pull-up resistor selection and the input common-mode range. The device's inputs are true differential, but the absolute voltage on each input must remain between GND and VDD, which constrains how the part can be interfaced to bipolar sensors. This page synthesizes distributor pricing, verified same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ADS1110A3IDBVRG4 - 16-Bit 240SPS I2C Delta-Sigma ADC | Texas Instruments
The Texas Instruments ADS1110A3IDBVRG4 is a precision, continuously self-calibrating 16-bit delta-sigma analog-to-digital converter with differential inputs, an integrated 2.048V reference, programmable gain amplifier (PGA), onboard oscillator, and an I2C-compatible serial interface, packaged in a 6-pin SOT-23 (DBV). The "A3" speed grade sets the maximum data rate at 15 SPS (samples per second), optimizing noise-free resolution at low conversion rates. The device operates from a single 2.7V to 5.5V supply and draws only 0.7 mW of power at full speed, drawing as little as 1.5 µA in power-down mode for battery-friendly operation. A delta-sigma ADC is a converter that uses oversampling and noise-shaping to deliver high resolution (here, 16 bits) at the cost of raw sample rate, making it ideal for measuring slow, high-precision DC signals such as sensor outputs, strain gauges, thermocouples, and bridge-style transducers. The ADS1110 sits in the data-converter sub-tree of TI's precision signal-chain portfolio (ADC -> delta-sigma ADC -> low-power precision ADC -> data acquisition IC) and combines three traditionally external functions - reference, PGA, and clock - inside a 6-pin SOT-23, eliminating the need for external analog components and shrinking the analog front-end footprint by more than 50% compared to a discrete ADC + external reference + op-amp design. Key features of this A3 variant include the 15 SPS maximum output data rate, integrated PGA with 8x gain (compared to 1x on the A0 grade), ±2.048V differential input range via the internal reference, eight I2C slave addresses for multi-channel I/O expansion, and four user-selectable data rates (15, 30, 60, 240 SPS). The differential input and onboard reference maximize dynamic range while minimizing sensitivity to ground-loop noise, and the SOT-23-6 package supports reflow soldering on standard RoHS-compliant SMT lines. Typical applications include portable instrumentation, weigh scales, factory automation sensor front-ends, handheld medical monitors, industrial process control loops, and battery-powered IoT endpoints that need a small, low-power, high-resolution ADC on a tight PCB budget. The integrated reference, PGA, and oscillator drastically reduce external component count. When designing with the ADS1110A3IDBVRG4, place a 0.1 µF decoupling capacitor close to VDD (pin 6) and a 10 µF bulk capacitor at the board supply. Use SDA/SCL pull-ups sized to the I2C bus capacitance, and add a small RC filter on the analog inputs if the source impedance exceeds 1 kΩ. The internal PGA with 8x gain enables direct connection to low-output sensors such as thermocouples and strain gauges without a front-end instrumentation amplifier.
ADS1110A6IDBVR - 16-Bit Delta-Sigma ADC with PGA, SOT-23-6 | Texas Instruments
The Texas Instruments ADS1110A6IDBVR is a 16-bit precision, continuously self-calibrating delta-sigma analog-to-digital converter (ADC) with differential inputs and a fixed I2C-compatible slave address (A6), housed in a 6-pin SOT-23 (DBV) package. It integrates an onboard 2.048 V low-drift reference, a programmable gain amplifier (PGA) with gains of 1, 2, 4, 8, and a sigma-delta modulator that delivers up to 16 bits of resolution at sample rates of 15, 30, 60, or 240 SPS. What is a Delta-Sigma ADC? A delta-sigma (sigma-delta) ADC is a type of analog-to-digital converter that uses oversampling and noise-shaping to achieve high resolution. Delta-sigma ADCs sit within the broader ADC hierarchy: ADC -> data converter -> data acquisition IC -> signal chain -> semiconductor. Compared to successive-approximation register (SAR) ADCs, delta-sigma converters offer superior noise performance for low-bandwidth, high-precision measurements such as sensors, weigh scales, and instrumentation. Key features include an onboard 2.048 V reference with 5 ppm/C typical drift, an I2C-compatible 2-wire serial interface supporting Standard and Fast modes, self-calibration of offset and gain on every conversion, and a single-supply operation from 2.7 V to 5.5 V. The PGA allows full-scale differential input ranges of +/-2.048 V down to +/-0.256 V, enabling direct interface to low-output sensors such as thermocouples and strain gauges. The SOT-23-6 package measures approximately 2.9 mm x 1.6 mm with a low thermal resistance suitable for handheld and space-constrained designs. The architecture is a third-order chopper-stabilized delta-sigma modulator followed by a digital SINC4 filter, achieving effective resolution of up to 16 bits noise-free at the slowest data rate. The self-calibration sequence runs automatically at power-on and on demand, eliminating offset and gain drift over temperature. The fixed I2C address option encoded in the part number (A6 = 0x90/0x91) eliminates external address-pin strapping in multi-channel systems that already use ADS1110A0/A1/A2/A3 variants. Typical applications include portable instrumentation, weigh scales, industrial process control, consumer weighing and force-sensing products, temperature measurement with thermocouples or RTDs, and battery monitoring. The combination of small footprint, low power (typically 240 uA at 5 V), and high resolution makes it suitable for handheld battery-powered test equipment, IoT sensor nodes, and factory automation modules. A key design consideration is the input common-mode range: the differential input must remain within 0 V to VDD when PGA gain is set to 1, and the PGA output cannot exceed the supply rails. For highest accuracy, use a clean low-noise supply and bypass VDD with both a 0.1 uF ceramic and a 10 uF tantalum or ceramic capacitor placed close to the supply pin. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select and qualify the ADS1110A6IDBVR quickly.
ADS1110A6IDBVRG4 - 16-Bit 240SPS Delta-Sigma ADC | Texas Instruments
The Texas Instruments ADS1110A6IDBVRG4 is a 16-bit, 240-SPS, single-channel delta-sigma analog-to-digital converter (ADC) with differential inputs, an integrated 2.048 V reference, an on-chip programmable gain amplifier (PGA), an internal oscillator, and an I2C-compatible serial interface, all housed in a 6-pin SOT-23 package. The SOT-23-6 footprint makes it one of the smallest precision ADCs available for industrial-temperature instrumentation. A delta-sigma ADC is a type of analog-to-digital converter that uses oversampling and noise-shaping to achieve high resolution at low sample rates. The ADS1110's sigma-delta modulator front end, combined with a digital SINC4 filter, delivers true 16-bit noise-free resolution. Because delta-sigma converters trade speed for resolution, the ADS1110 is optimized for precision DC and low-frequency measurements rather than audio or wideband signal acquisition, where successive-approximation register (SAR) ADCs would be more appropriate. The part integrates a PGA with gains of 1, 2, 4, or 8, which lets small differential signals (down to ±15 mV full scale) be digitized directly without external front-end amplification. Key features include differential input ranges of ±2.048 V, ±1.024 V, ±0.512 V, and ±0.256 V, 15 / 30 / 60 / 240 SPS selectable data rates, an integrated 2.048 V low-drift reference, and a single-supply 2.7 V to 5.5 V analog/digital supply range. The converter is continuously self-calibrating, includes an on-chip oscillator (no external crystal required), and offers four I2C slave addresses. Per the manufacturer datasheet, the part dissipates only 0.9 mW at 240 SPS on a 3 V supply, enabling battery-friendly designs. The architecture combines a switched-capacitor delta-sigma modulator with a third-order digital filter, achieving >84 dB of power-supply rejection at the modulator and excellent common-mode noise immunity, both essential for industrial sensor measurements. The internal reference drift is typically 5 ppm/°C, and the PGA eliminates the gain-error budget of an external instrumentation amplifier in many thermocouple and bridge-sensor applications. Typical applications include portable instrumentation, temperature measurement with thermocouples or RTDs, strain-gauge and load-cell readouts, factory-multimeter controllers, battery monitoring, and any space-constrained precision measurement node. Designers benefit from the ADS1110A6IDBVRG4's small footprint, self-contained approach (reference + oscillator + PGA), and low power draw when designing wearables, IoT edge nodes, and industrial sensor front ends. When designing with this part, use a 0.1 µF decoupling capacitor on VDD placed within 5 mm of the pin, keep analog and digital grounds joined at a single star point under the IC, and choose the lowest data rate that meets system bandwidth to maximize effective resolution. A 10 nF bypass on AIN+/AIN- improves common-mode noise rejection in noisy environments.
ADS1115IDGSR - 16-Bit I2C ADC with PGA | TI | Sensor Nodes
The Texas Instruments ADS1115IDGSR is a precision, low-power, 16-bit delta-sigma analog-to-digital converter (ADC) with an I2C-compatible interface, supplied in a 10-pin VSSOP (DGS) package. It integrates a programmable gain amplifier (PGA), a low-drift voltage reference, an internal oscillator, and a digital comparator, enabling compact high-resolution measurement systems with minimal external components. An analog-to-digital converter (ADC) is a mixed-signal device that translates continuous analog voltages into discrete digital codes that microcontrollers and processors can interpret. The ADS1115 operates as a sigma-delta ADC, using oversampling and noise shaping to achieve 16-bit resolution at conversion rates up to 860 samples per second (SPS). Within the signal-chain hierarchy, it belongs to precision data-acquisition ICs and eliminates the need for an external reference or clock source. Key features include four single-ended or two differential input channels via an input multiplexer, a PGA with gains from 2/3 to 16 V/V, an I2C interface supporting four bus addresses (0x48 through 0x4B), and an onboard comparator with ALERT/conversion-ready output. The device operates from a 2.0V to 5.5V supply over -40C to +125C, drawing only about 150 uA of supply current in continuous mode. The ADS111x architecture uses a delta-sigma modulator followed by a digital decimation filter for high accuracy at low power. The integrated PGA amplifies small sensor signals before conversion to improve effective resolution, while the low-drift internal reference keeps industrial measurements stable over time and temperature. The lead-free VSSOP-10 package (3.00mm width) suits space-constrained PCB layouts. Typical applications include battery voltage and current monitoring, portable instrumentation, IoT sensor nodes, temperature and pressure measurement, and industrial process control. Because no external reference or oscillator is required, the ADS1115IDGSR reduces BOM complexity in designs needing 16-bit accuracy on an I2C bus. For best performance, place a 0.1uF decoupling capacitor close to VDD and use the ADDR pin to avoid I2C bus conflicts. Keep source impedance low enough to charge the sampling capacitor; a low-noise LDO such as TPS7A26-Q1 further improves measurement stability.
ADS1115IDGSR-Q1 - 16-Bit I2C ADC, 860SPS | Texas Instruments
The Texas Instruments ADS1115IDGSR-Q1 is a precision, low-power, 16-bit, I2C-compatible delta-sigma analog-to-digital converter (ADC) in a 10-pin VSSOP (DGS) package, qualified to AEC-Q100 for automotive applications. It integrates a 4-channel input multiplexer, a programmable gain amplifier (PGA), a low-drift internal voltage reference, an internal oscillator, and a digital comparator, enabling compact single-chip signal acquisition. An ADC (analog-to-digital converter) is a mixed-signal device that converts continuous analog voltages into discrete digital values. Within the converter hierarchy, the ADS1115 is a delta-sigma (over-sampling) ADC, a topology prized for high resolution and low noise at modest sample rates, sitting above SAR ADCs in resolution and below integrating ADCs in speed. It connects to any host MCU or processor via an I2C bus, making it a power-management and sensor-measurement building block. Key features include 16-bit resolution with up to 860 samples per second (SPS) conversion rate, an I2C interface supporting four selectable addresses, and a PGA with gain settings that allow full-scale ranges down to the +/-256 mV range for direct connection of small signals. The integrated digital comparator supports alert-based operation, reducing host polling overhead. Conversion rate and duty cycling support low average power consumption in battery-backed systems. The delta-sigma architecture oversamples the input and applies digital decimation filtering, yielding excellent linearity and noise performance without external precision components. Because reference, oscillator, and PGA are on-chip, external BOM count stays minimal and channel-to-channel measurements remain consistent. Typical applications include automotive battery-voltage and current monitoring, sensor measurement in body and chassis modules, battery management systems (BMS) auxiliary sensing, factory automation analog input modules, and precision portable instrumentation. The Q1 qualification makes it a natural fit alongside TI automotive power and monitoring devices. Design tip: the input pins must not exceed VDD + 0.3V; for measuring rails above the supply, use a resistive divider and match the source impedance to the PGA input requirements to preserve accuracy.
ADS1118IDGSR - 16-Bit 860-SPS 4-Channel ADC | TI
The Texas Instruments ADS1118IDGSR is a 16-bit, 860-SPS, 4-channel delta-sigma analog-to-digital converter with a programmable gain amplifier, integrated voltage reference, oscillator, temperature sensor, and SPI interface, housed in a 10-VSSOP package. It is designed for low-power precision measurement systems and supports analog sensor inputs as well as temperature sensing. An ADC converts continuous analog voltage into a numeric value for processing, measurement, or control. The ADS1118 belongs to the delta-sigma ADC class, where an internal modulator and digital filter shape the conversion result. Its integrated PGA allows low-level sensor signals to be amplified before conversion, while the internal reference, oscillator, and temperature sensor reduce the number of external support components required in compact measurement designs. The main headline specifications are 16-bit resolution, conversion rates up to 860 samples per second, four analog input channels, and operation across a -40°C to +125°C temperature range. The device supports SPI-compatible serial communication and is offered in a small 10-pin VSSOP package. The integrated reference and temperature sensor are especially useful for sensor measurements, thermocouple-related monitoring, and systems requiring a compact analog front end. The delta-sigma architecture provides high resolution for low-frequency and slowly changing signals, while the programmable gain amplifier supports a range of input amplitudes. The internal oscillator allows operation without an external clock, which can simplify PCB design and reduce component count. The ADC is suitable when deterministic digital readout, modest conversion speed, and low power consumption are more important than very high sample rates. Typical applications include industrial process monitoring, temperature sensing, pressure and strain-signal acquisition, portable instrumentation, environmental measurement, and low-power embedded sensing. The integrated temperature sensor can provide a local temperature reading, while the analog channels support external sensors such as thermistors, resistive bridges, potentiometers, and other slowly varying analog sources. A key design consideration is analog signal conditioning and PCB layout. The sensor input must stay within the ADC input range, and the PGA gain must be selected so that the conditioned signal uses the converter’s available resolution without overloading the input. Decoupling capacitors should be placed close to the power pins, and the analog and digital return paths should be arranged to minimize noise coupling into the measurement channels. The 860-SPS maximum rate also means that applications requiring faster sampling need a different ADC architecture. This page combines the manufacturer’s published ADS1118 features, distributor pricing and availability signals, package information, application guidance, and drop-in replacement analysis for engineers evaluating the ADS1118IDGSR.