ADC/DAC
محصولات (3,100+)
AS1527-BSOU - 10-Bit 73ksps SAR ADC, External Ref, 8-SOIC | ams
The ams AS1527-BSOU is a 10-bit, 73 ksps, low-power, successive-approximation analog-to-digital converter (SAR ADC) with one single-ended input channel, designed specifically for single-supply, low-voltage applications and housed in an 8-pin SOIC (3.90 mm body width) tube-packaged package. The device is specified for 10-bit resolution, 73 ksamples/second throughput, and SPI/MICROWIRE/QSPI-compatible serial interface, accepting a 2.7 V to 3.6 V analog/digital supply and requiring an external voltage reference (0 V to VREF input range). An SAR ADC is a successive-approximation-register analog-to-digital converter. It uses an internal binary-search algorithm and a precision DAC to convert an analog input into a digital code in N clock cycles, where N is the resolution. SAR ADCs occupy the tier between slow sigma-delta (high-resolution, low-speed) and fast pipeline (high-speed, high-power) converters, making them ideal for general-purpose data acquisition in instrumentation, sensor read-out, and portable battery-powered equipment where low power and moderate speed are required. Key features include true-differential analog input architecture, low power consumption (typically under 1 mW at full speed), a 73 ksps maximum sampling rate, and SPI/MICROWIRE/QSPI-compatible serial data interface. The AS1527 differentiates from the AS1526 (its internal-2.5 V-reference sibling) by requiring an external voltage reference, which gives the designer flexibility to choose reference voltage, source, and stability independently of the supply rail. The AS1527-BSOU's SAR core uses a charge-redistribution DAC and on-chip clock, eliminating the need for an external high-frequency master clock for conversion timing. Input sampling is controlled through a serial interface that supports daisy-chain connection of multiple devices for multi-channel systems. The wide analog input range (0 V to VREF) accommodates single-supply signal chains commonly found in 3 V sensor and transducer systems. Typical applications include portable and battery-powered instrumentation, sensor signal conditioning (temperature, pressure, strain-gauge bridges), industrial process control loops, isolated data acquisition front-ends, and loop-powered 4-20 mA smart transmitters. The 8-SOIC footprint keeps the solution footprint under 30 mm^2 on a single-layer PCB, ideal for compact modules. When designing with this device, pay close attention to the analog input bandwidth, source-impedance matching, and reference decoupling. Place a 0.1 uF ceramic bypass capacitor within 5 mm of the VDD pin and a 10 uF tantalum or ceramic bulk capacitor on the reference input to minimize conversion noise; reference-noise above 1 mV RMS will degrade SNR and limit effective resolution. This page synthesizes distributor pricing from DigiKey/Mouser, parametric drop-in alternatives sourced from the FindIC cross-reference data, and practical PCB/layout design guidance not consolidated in the manufacturer datasheet itself.
AS1528-BTDR - 10-Bit 150ksps Micro-Power SAR ADC | ams OSRAM
The ams OSRAM AS1528-BTDR is a 10-bit, micro-power, successive-approximation analog-to-digital converter (SAR ADC) that delivers up to 150 ksps sampling rate while consuming only a few hundred microamps from a single 2.7 V to 5.25 V supply. Packaged in a compact 8-pin TDFN (3x3 mm) with an exposed thermal pad, the device supports both single-ended and differential analog inputs and provides a standard SPI/MICROWIRE/QSPI-compatible serial interface for easy connection to microcontrollers and DSPs. Key specifications include 10-bit resolution with no missing codes, an integrated track-and-hold amplifier, and an external voltage reference input. The AS1528 family is optimized for low-power applications such as portable instrumentation, sensor signal acquisition, and battery monitoring. The 8-TDFN package with exposed pad provides a low thermal resistance path and an excellent PCB footprint for dense analog layouts. The device operates over a wide -40 °C to +85 °C industrial temperature range, making it suitable for factory automation, environmental sensors, and consumer medical electronics. An on-chip conversion clock eliminates the need for an external high-frequency oscillator, and the low current drain of typically less than 1 mA at full speed allows direct use in 3 V coin-cell powered designs where every microamp matters. A SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that uses a binary-search algorithm through an internal capacitive DAC to convert an analog input into a digital code. SAR ADCs offer an excellent balance of speed, resolution, and power consumption, and are widely used in multiplexed data-acquisition systems, precision sensor front-ends, and embedded control loops where deterministic latency and a small footprint are critical. Typical applications for the AS1528-BTDR include portable battery-powered instruments, industrial process-control loops, temperature and pressure sensor digitizers, and consumer handheld devices. Designers choose this part when they need a low-power, fully-specified SAR ADC with a standard SPI port in a small 3x3 mm TDFN, rather than a higher-power pipelined converter or a slower integrating ADC. For designs that need higher resolution, the pin-compatible 12-bit AS1529 in the same 8-TDFN footprint offers an upgrade path. Place a 0.1 µF decoupling capacitor close to the supply pin and keep the analog and digital grounds tied to a single star-point under the exposed pad for best noise performance.
AS1528-BTDT - 10-Bit 150ksps Micro-Power SAR ADC | ams OSRAM
The ams OSRAM AS1528-BTDT is a 10-bit, 150 ksps, micro-power successive-approximation analog-to-digital converter (SAR ADC) housed in an 8-pin TDFN (3x3 mm) exposed-pad package. The device supports a single +2.7V to +5.25V supply, offers single-ended or true-differential input capability, and is specified for operation across the -40C to +85C industrial temperature range, making it suitable for compact, battery-aware signal acquisition designs. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a class of data-conversion IC that uses a binary-search algorithm and an internal capacitive DAC to digitize an analog input, one bit per clock cycle. SAR ADCs sit in the broader taxonomy of analog-to-digital converter -> data converter -> mixed-signal IC -> semiconductor. They are valued for low power, no-pipeline-latency sampling, and excellent DC accuracy at moderate speeds, which is why they dominate micro-power instrumentation, sensor front-ends, and portable instrumentation. Key features of the AS1528-BTDT include 150 ksps throughput, a SPI/QSPI/MICROWIRE-compatible serial interface, an internal 2.5V reference, single-ended or differential analog inputs, and a shutdown mode that reduces supply current to sub-microamp levels for battery-powered duty-cycled designs. The 8-TDFN with exposed pad provides a low thermal-resistance path that helps keep self-heating low at full sampling rate. Architecturally, the part combines a low-noise input sampler, a charge-redistribution SAR core, an on-chip reference, and a digital serial output block. The single +2.7V to +5.25V supply simplifies power-tree design in 3.3V and 5V systems and removes the need for a negative rail, while the differential input mode improves common-mode rejection in noisy industrial environments. Typical applications include portable instrumentation, 4-20 mA loop-powered sensor transmitters, battery monitoring, temperature/pressure transducer read-out, and handheld data loggers. The micro-power consumption profile also makes it well-suited for energy-harvesting front-ends where sleep-mode current is critical. When designing with this part, observe the input common-mode range of 0V to VDD (single-ended) and respect the maximum sampling rate derating versus VDD. Keep the analog input traces short and place a 0.1 uF bypass capacitor adjacent to the supply pin to preserve the part's SNR. This page synthesizes distributor pricing, drop-in alternative guidance, and practical design notes that are not collected in any single manufacturer datasheet or distributor listing, and is optimized for both human engineers and AI-search citation.
AS1529-BTDR - 10-Bit 150ksps Micro-Power SAR ADC | ams OSRAM
The ams OSRAM AS1529-BTDR is a 10-bit, 150 ksps, micro-power successive-approximation analog-to-digital converter (SAR ADC) with 2 single-ended or differential input channels, housed in an 8-pin TDFN EP (3x3 mm) package. Operating from a single +2.7 V to +5.25 V supply, it delivers an integrated 2-channel input multiplexer, SPI/MICROWIRE/QSPI-compatible serial interface, and typical power dissipation under 1 mW at full speed, making it well-suited for portable battery-powered data-acquisition front-ends. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary search algorithm with a precision DAC and comparator to convert one sample per conversion clock cycle. SAR ADCs occupy the middle of the converter hierarchy between flash converters (fastest, highest power) and sigma-delta converters (highest resolution, slower). The AS1529 specifically belongs to the low-power SAR family of precision data converters, often grouped with general-purpose 8-to-12-bit SARs for industrial, instrumentation, and battery-powered sensor read-out applications. Key features include 10-bit resolution with no missing codes, a 150 ksps sampling rate per channel, an input span accepting 0 V to VDD (unipolar) or ±VDD (pseudo-differential bipolar) signals, a low power-down current between conversions, and an integrated 2-channel analog input multiplexer that simplifies dual-sensor sampling with one chip. The serial interface supports SPI, QSPI, and MICROWIRE-compatible hosts for direct connection to most modern microcontrollers without glue logic. The AS1529 uses a charge-redistribution DAC architecture based on a binary-weighted capacitor array, which inherently provides a sample-and-hold function on each input. This sample-and-hold action on the input lets the ADC accurately capture fast-moving analog signals; combined with low aperture delay and the differential input option, it offers good common-mode noise rejection for ground-bounce-tolerant measurements in mixed-signal environments. Typical applications include portable battery-powered data-acquisition modules, two-sensor instrumentation front-ends, handheld measurement instruments, process-control analog input boards, and medical or industrial sensor read-out cards where 8 to 10 bits of resolution is sufficient. The wide supply range also supports direct connection to 3 V or 5 V microcontrollers such as the ATmega or PIC families. When designing with the AS1529, place the 0.1 µF VDD bypass capacitor within 1 cm of the supply pin and route the serial clock (SCLK) on a short, impedance-controlled trace to keep digital switching noise from coupling into the analog inputs. Also drive CS low only after SCLK has stabilized to avoid spurious conversions.
AS1529-BTDT - 10-Bit 150ksps Micro-Power ADC | ams OSRAM
The ams OSRAM AS1529-BTDT is a 10-bit, 150 ksps successive-approximation-register (SAR) analog-to-digital converter with two single-ended or one differential input channel, packaged in an 8-pin TDFN (3x3 mm). It operates from a single 2.7 V to 5.25 V supply, draws very low quiescent current, and supports MICROWIRE/QSPI/SPI-compatible serial interfaces, making it well suited to space- and power-constrained designs. A SAR ADC is a type of data converter that uses a binary-search algorithm across an internal capacitive DAC to digitize an analog input in one conversion cycle per bit. SAR ADCs are prized for their deterministic latency (no input pipeline delay), low power, and excellent DC accuracy, and they sit in the broader hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. The AS1529 is therefore positioned for low-power, low-channel-count precision sampling rather than high-speed waveform acquisition. Key features of the AS1529-BTDT include 10-bit resolution, 150 ksps maximum sampling rate, two single-ended input channels (or one pseudo-differential), an SPI/MICROWIRE/QSPI-compatible serial interface, an external reference input, and a power-down mode that reduces supply current to microamp levels between conversions. The 8-TDFN (3x3) exposed-pad package provides a low thermal resistance path and a small PCB footprint ideal for portable instrumentation. The architecture combines a charge-redistribution CDAC, a high-bandwidth input sampler, and an on-chip oscillator so no external clock is required for the conversion clock. The serial interface supports daisy-chaining of multiple devices in concert with the AS1528 (single-channel variant), reducing the GPIO count on the host microcontroller in multi-channel sensor designs. Typical applications include portable medical sensors (blood-pressure, glucose, pulse oximetry), handheld industrial instruments (DMMs, calibrators), battery monitoring and fuel-gauging front-ends, optical-module monitoring (laser bias, photodiode current), and sensor-conditioning ASIC companion converters. In all of these, the combination of low power, small package, and a simple SPI interface enables the converter to sit next to the sensor without dominating the BOM. When designing with the AS1529-BTDT, select an external reference voltage appropriate to the input range and use a clean VDD with 100 nF + 2.2 uF decoupling close to the pin. The exposed pad must be soldered to the ground plane to achieve the rated thermal and electrical performance. This page synthesizes distributor pricing, same-brand drop-in alternatives (AS1528, AS1531), cross-brand pin-compatible equivalents, and practical design notes not found in the manufacturer datasheet.
AS1530 - 12-Bit 400ksps 8-Channel SAR ADC | ams OSRAM AG
The ams OSRAM AS1530 is a 12-bit, single-supply, low-power, 400 ksps (300 ksps for the -AS1531 variant) successive-approximation analog-to-digital converter housed in a 20-pin TSSOP package. It provides 8 single-ended or 4 differential analog input channels, a serial MICROWIRE-/QSPI-/SPI-compatible interface, and an on-chip 4.096 V internal reference, making it a self-contained data-acquisition front-end for mixed-signal systems. Key features include ±1 LSB INL (max), ±1 LSB DNL (no missing codes guaranteed), 70 dB SINAD at the Nyquist input frequency, and 4.5 mW typical power dissipation at 400 ksps with a single +2.7 V to +5.25 V supply. The architecture is built around a true SAR core with input track/hold, an internal 4.096 V bandgap reference (also available as an output drive), and a low-noise front-end suitable for sensor, instrumentation, and industrial-control signal chains. A successive-approximation register (SAR) ADC is the natural choice when wide input bandwidth, deterministic latency, and excellent DC accuracy are required simultaneously. SAR converters sample the input on a track/hold capacitor, then perform a binary search with an internal DAC, producing a conversion result in a fixed number of clock cycles. Unlike sigma-delta ADCs, SAR ADCs offer zero latency, no pipeline delay, and excellent behavior on multiplexed inputs because each channel settles independently. The AS1530 specifically targets the single-supply, multi-channel, low-power tier of the SAR market and is widely used where battery life and small PCB area dominate the BOM. The AS1530 integrates a high-impedance input multiplexer (8 SE / 4 DI), a configurable unipolar/bipolar input range (±VREF), an internal or external reference option, and a serial interface that supports autonomous scanning across channels. Power-down current drops to sub-1 µA, making the part attractive for duty-cycled portable measurement. The 20-pin TSSOP footprint is industry-standard, allowing straightforward layout migration from older 8-channel 12-bit SAR ADCs such as the MAX1280/MAX1282 or AD7920/AD7928 family when channel count and package align. Typical applications include 4-20 mA loop-powered sensor transmitters, multi-channel temperature acquisition with RTD/thermocouple front ends, portable instrumentation and data loggers, PLC analog input modules, battery monitoring in UPS/backup systems, and patient-monitoring front ends. The wide supply range and low power allow direct connection to 3.3 V or 5 V microcontrollers without level shifters. When designing with the AS1530, allocate adequate input-bandwidth settling time by inserting a small RC (typically 1 kΩ + 100 pF) for source impedances above ~500 Ω, and place the 0.1 µF supply bypass as close as possible to VDD. Reference decoupling (10 µF + 0.1 µF) on REF is mandatory for full 12-bit performance. This page synthesizes current distributor pricing, drop-in pin-compatible alternatives from same-brand ams OSRAM and verified cross-brand sources, and practical design notes that go beyond the bare datasheet to give a working engineer a complete design starting point.
AS1531 - 12-Bit 8-Channel 300ksps ADC | ams OSRAM | 20-TSSOP
The ams OSRAM AS1531 is a 12-bit, low-power, 8-channel successive-approximation-register (SAR) analog-to-digital converter that operates from a single +2.7V to +3.6V supply and delivers up to 300,000 samples per second. Housed in a 20-pin TSSOP package, it provides four single-ended (or two pseudo-differential) input channels, an internal 2.5V reference with integrated reference buffer, and an SPI-compatible serial interface. Per the ams AG datasheet, the AS1531 consumes only 2.2 mA at 300 ksps and supports a reduced-power mode plus a power-down mode for battery-aware designs. An SAR analog-to-digital converter is a type of data converter that uses a binary search algorithm and a precision DAC to digitize an analog input in a single clock cycle per bit, achieving N conversion cycles for N bits of resolution. SAR ADCs sit in the broader data converter family (SAR -> ADC -> data converter -> signal chain IC -> mixed-signal semiconductor) and are favored for applications requiring deterministic latency, low power, and moderate-to-high resolution without the latency of sigma-delta converters or the complexity of pipeline ADCs. Key features of the AS1531 include true 12-bit linearity with no missing codes, 4 (or 8 with COM pin) software-configurable input channels, a wide analog input range of 0V to VREF (or 2xVREF in pseudo-differential mode), a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, and a hardware power-down input that drops quiescent current to microamp levels. The internal 2.5V reference eliminates the need for an external reference IC, simplifying BOM cost in space-constrained designs. The AS1531 is built on a CMOS process with a built-in track-and-hold amplifier, enabling accurate conversions of full-scale input signals up to Nyquist without external buffering. The successive-approximation register and on-chip clock generator remove the need for an external high-frequency clock, allowing designers to drive the chip from a low-cost MCU oscillator and re-evaluate the analog front end in software. Typical applications include portable industrial instrumentation, multi-channel data loggers, battery-powered sensor arrays, patient monitoring front-ends, and process-control analog input modules. The combination of low power, small footprint, and 8-channel input multiplexer makes the AS1531 particularly attractive for handheld multimeters and panel meters. When designing with this part, ensure the analog input does not exceed VDD + 0.3V or fall below GND - 0.3V to avoid latch-up. Decouple VDD with a 10uF tantalum plus 0.1uF ceramic combination placed within 5 mm of the supply pin, and place the SHDN pin high within 10 ms after VDD settles to guarantee rated first-conversion accuracy. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
AS1531-T - 12-Bit 300ksps Low-Power ADC | ams OSRAM
The ams OSRAM AS1531-T is a 12-bit, single-supply, low-power successive approximation register (SAR) analog-to-digital converter offering 300ksps throughput with 4- or 8-input channel multiplexing, housed in a 20-pin TSSOP package. It supports single +2.7V to +5.25V supply operation and is specified over the industrial -40C to +85C temperature range. What is a SAR ADC? A successive approximation register analog-to-digital converter is a precision data-acquisition building block that converts an analog input voltage into a 12-bit digital code by performing a binary search against an internal precision DAC. SAR ADCs sit within the broader hierarchy of ADC architectures (flash, pipeline, sigma-delta, SAR) and are preferred when designers need medium-to-high resolution at hundreds-of-ksps speeds with very low power consumption and zero pipeline latency - making them ideal for multi-channel multiplexed data-acquisition front-ends, instrumentation, and sensor readout. The AS1531-T features 4- or 8-input channel input mux, an SPI/QSPI/MICROWIRE-compatible serial interface, low power consumption of approximately 1.5 mA at 3V supply, and 200 kHz track-and-hold bandwidth. The reference voltage can be applied externally up to VDD, and unipolar analog inputs accept 0V to VREF. A hardware power-down mode reduces current to microamp levels between conversions, which is critical for battery-powered instrumentation and portable measurement. Architecturally, the device combines a capacitive-charge redistribution DAC with auto-calibrated switching, ensuring excellent AC linearity (THD typically better than -80 dB) and low INL/DNL for the 12-bit class. The high-impedance analog input structure simplifies front-end signal conditioning when interfacing with sensors, transducers, or low-bandwidth signal sources. Typical applications include portable data-acquisition systems, industrial process-control front-ends, battery-powered instrumentation, multi-channel sensor monitoring, and medical point-of-care diagnostic equipment where multi-channel input, low power, and small footprint are key design drivers. When designing with the AS1531-T, ensure the analog supply is well bypassed with a 0.1 uF ceramic capacitor placed close to the AVDD pin, and use a low-impedance external reference for best DC accuracy. The serial interface timing must respect the tCONV and tACQ specifications in the manufacturer datasheet to maintain throughput at 300 ksps. This page synthesizes distributor pricing, drop-in alternatives, application circuits, and practical design notes that are not found in the manufacturer datasheet alone, helping engineers select and qualify the AS1531-T for new and existing designs.
AS1532-T - 12-bit 4-ch 400ksps SAR ADC | ams OSRAM
The ams OSRAM AS1532-T is a low-power, 4-channel, 12-bit successive-approximation (SAR) analog-to-digital converter delivering up to 400 ksps throughput from a single supply, housed in a 16-pin TSSOP package. The -T suffix denotes the tape-and-reel shipping option for high-volume SMT assembly lines. A SAR ADC is a type of analog-to-digital converter that uses an iterative binary-search algorithm against an internal precision DAC, sampling the input on each clock cycle and producing a stable, low-latency conversion result in N clock cycles for an N-bit output. SAR ADCs sit in the broader hierarchy of data converters (ADC -> ADC sub-family -> data converter -> signal chain IC) and are preferred over delta-sigma or pipeline ADCs when low-latency, deterministic sampling, and excellent DC linearity are required at moderate sample rates. The AS1532 family combines four single-ended or two differential input channels with an SPI/QSPI/MICROWIRE-compatible serial interface, low power consumption, and superior AC characteristics for instrumentation-class acquisition. Key features include four software-configurable input channels, an integrated 4.096V reference option, single-supply operation from 2.7V to 5.5V, and a low power-dissipation profile that scales with sample rate, making it suitable for both always-on sensor front ends and multiplexed measurement systems. The converter uses a charge-redistribution SAR architecture with an internal clock and a sample-and-hold front end, enabling true 12-bit no-missing-code performance. Built-in input multiplexers allow sequential scanning of up to four single-ended sources without external switching, reducing BOM count and PCB area in multi-sensor applications such as battery-stack monitors and transducer bridges. Typical applications include portable and battery-powered data acquisition, multi-channel process-control front ends, transducer/bridge sensor readout (load cells, strain gauges, thermocouples), industrial instrumentation with 4-20mA loop digitization, portable medical monitors, and embedded system analog front ends. The wide supply range simplifies integration with both 3.3V microcontrollers and 5V legacy analog chains. When designing with this ADC, ensure the analog input pins are properly buffered with low-impedance op-amps driving the sample capacitor at high source impedance to avoid gain error. Decouple AVDD and DVDD independently with 0.1uF ceramic capacitors placed within 5 mm of the supply pins, and provide a clean ground plane beneath the TSSOP thermal pad to minimize digital switching noise coupling into the analog front end. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet. It is intended as a supplementary engineering resource for component selection and BOM validation.
AS1533-T - 12-bit 300ksps SAR ADC | ams OSRAM | 16-TSSOP
The ams OSRAM AS1533-T is a 12-bit, 300 ksps successive-approximation-register (SAR) analog-to-digital converter with two or four input channels and a high-speed serial SPI/MICROWIRE/QSPI-compatible interface, supplied in a 16-pin TSSOP package (4.40 mm body width) on tape-and-reel. According to the manufacturer datasheet excerpt, the AS1532/AS1533 family is specifically designed for single-supply operation, combining low power consumption with superior AC characteristics that make the part suitable for battery-powered instrumentation and industrial data-acquisition front ends. What is a SAR ADC: A successive-approximation-register analog-to-digital converter is a sampling ADC architecture that uses a binary-search algorithm against an internal DAC to convert an analog input to a digital code in N clock cycles, where N is the resolution in bits. SAR ADCs sit in the data-converter IC category above general-purpose ADCs, alongside delta-sigma and pipeline ADCs, and within the broader power-management and signal-chain semiconductor hierarchy. They are preferred for multi-channel, low-latency acquisitions where DC accuracy and deterministic latency matter more than very high sampling rates. Key features of the AS1533-T include 12-bit resolution, a 300 ksps sampling rate, 2 or 4 analog input channels multiplexed to a single ADC core, low power consumption suitable for single 2.7V–5.25V supply rails, and a flexible serial interface. The TSSOP-16 footprint makes it compatible with standard surface-mount assembly flows, and the -T suffix indicates tape-and-reel packaging for high-volume manufacturing. Architecture-wise, the input track-and-hold and capacitive DAC deliver excellent dynamic performance at low power. Sampling at 300 ksps with 12-bit resolution allows the AS1533-T to capture fast analog transients in process-control and instrumentation loops while consuming modest supply current. The on-chip input multiplexer provides either 2 or 4 channels, allowing designers to optimize channel count against board area. Typical applications include portable and battery-powered instrumentation, industrial process control loops, sensor signal conditioning, and data acquisition systems where 12-bit dynamic range is sufficient. The device also finds use in medical monitoring equipment, motor control feedback, and front-end digitisation for control panels. When designing with the AS1533-T, allocate adequate decoupling on AVDD and DVDD, keep analog and digital grounds separated with a single-point tie, and respect the rated analog input common-mode range relative to the chosen reference. The serial interface allows easy connection to modern microcontrollers and DSPs that lack a parallel ADC port. This page synthesizes distributor pricing, drop-in compatible alternatives, and engineering design notes that go beyond the manufacturer datasheet excerpt, helping engineers evaluate second-source availability and PCB-level integration for the AS1533-T.
AS1538-BTST - 12-Bit 8-Ch I2C ADC, 50ks/s, 16-TSSOP | ams OSRAM
The ams OSRAM (formerly ams AG / austriamicrosystems) AS1538-BTST is a 12-bit, 8-channel successive-approximation-register (SAR) analog-to-digital converter with a serial I2C interface, offering 50 ks/s sampling rate per channel in a 16-pin TSSOP surface-mount package. It operates from a single analog supply of 2.7 V to 5.25 V and the same range on the digital supply, drawing low supply current suitable for battery-powered and portable data acquisition. An SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm against an internal precision DAC to determine the output code. SAR ADCs offer the best combination of low power, deterministic latency (one conversion = N clock cycles), and strong DC accuracy - they sit in the data-converter hierarchy alongside pipeline ADCs (high speed, high power) and sigma-delta ADCs (highest resolution, lowest bandwidth). The I2C interface enables connection to almost any microcontroller with only two wires, making the AS1538-BTST popular for adding analog sensing to low-pin-count MCUs. Key features of the AS1538-BTST include 8 single-ended analog input channels selected by an internal analog multiplexer, 12-bit resolution with no missing codes, integrated track-and-hold, and selectable unipolar/bipolar input ranges via reference configuration. The 2.7-5.25 V single-supply operation covers both 3.3 V and 5 V system rails, and the TSSOP-16 footprint keeps board area under 35 mm². The companion part AS1540-BTST is the 4-channel version of the same die family for designs that only need fewer inputs. Architecture-wise, the part uses a charge-redistribution SAR core with an internal reference input pin, allowing the user to supply a precision external reference for best DC accuracy or a low-cost reference for cost-sensitive designs. The I2C address is hardware-selectable via an address pin to allow multiple AS1538 devices on the same bus. This is a more efficient silicon use than discrete ADC + MUX designs because the multiplexer is integrated inside the same die, eliminating the need for a separate analog switch. Typical applications include industrial process monitoring (multi-sensor data logging), portable medical instrumentation (battery-powered multi-channel measurements), consumer sensor hubs (multi-knob/multi-thermist-or reading via I2C), and HVAC / building-automation sensor interfaces. The wide supply range and small package also suit handheld multimeters and remote IoT sensor nodes powered by coin cells or 3.3 V system rails. When designing with this part, ensure the analog and digital supplies are properly decoupled with 100 nF + 10 uF capacitors placed close to the AVDD and DVDD pins respectively, and that the reference pin is bypassed with a low-ESR 1-10 uF capacitor to preserve linearity at full-scale transitions. Power-on default state sets the input multiplexer to channel 0 and the I2C address to the value latched at the AD pin during the most recent reset. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in alternatives from the AS15xx and ADCAD/ADS series, and PCB-level design notes that are not consolidated in the manufacturer datasheet.
AS1538-BTSU - 12-Bit 8-Ch 50kSPS I2C ADC | ams | TSSOP-16
The ams AS1538-BTSU is a single-supply, low-power, 12-bit data-acquisition analog-to-digital converter featuring a serial I2C interface and an 8-channel input multiplexer, supplied in a 16-pin TSSOP (Tape & Reel shipping suffix "U") package. According to the manufacturer datasheet, it integrates a successive-approximation ADC core with a sample-and-hold amplifier, internal asynchronous clock, and internal voltage reference, delivering up to 50 ksps throughput while operating from a single 2.7 V to 5.25 V analog supply. An analog-to-digital converter (ADC) is a mixed-signal data-acquisition component that converts real-world analog signals into discrete digital codes for processing by a microcontroller, DSP, or FPGA. The AS1538 belongs to the SAR (Successive Approximation Register) ADC family, a category well suited for multiplexed multi-channel low-power applications where deterministic latency and compact code size outweigh the highest sampling rates. SAR ADCs sit hierarchically below Nyquist-rate ADCs and above slower integrating ADCs in the data-converter taxonomy, and they are most commonly used in sensor multiplexing, instrumentation, and industrial monitoring front-ends. Key features of the AS1538-BTSU include eight single-ended input channels (software-selectable via the multiplexer), true 12-bit no-missing-code performance, an I2C-compatible 2-wire serial interface that simplifies MCU interconnection, a low quiescent supply current suitable for battery-powered designs, an internal reference (with external-reference option via full-scale adjustment), and an operating temperature range rated for industrial environments. Together, these features make the device attractive for space-constrained, multi-sensor systems. Internally, the architecture combines an input multiplexer, a sample-and-hold front-end, an internal asynchronous clock that removes the need for an external high-frequency master clock, a SAR conversion engine, and a precision internal reference. The combination of internal clocking and a digital serial interface reduces MCU pin count and PCB area while preserving deterministic per-channel conversion timing. Typical applications include multi-channel sensor monitoring (temperature, pressure, strain-gauge bridges), portable and battery-powered instrumentation, industrial process control front-ends, patient-monitoring and point-of-care medical devices, power-supply telemetry (rail voltage / current sensing), and consumer appliance control boards. The wide analog supply range (2.7 V to 5.25 V) supports both 3.3 V and 5 V system rails. When designing with this part, ensure that the I2C bus pull-ups are sized for the chosen clock rate and that the analog and digital grounds are tied to a single point to minimize digital-noise coupling into the analog inputs. Designers should also budget adequate acquisition time per channel and avoid channel switching during the conversion phase to prevent settling errors. This page synthesizes distributor pricing from DigiKey, Mouser, Octopart and Win Source, cross-references for drop-in compatible alternatives, and practical design notes not consolidated in the manufacturer datasheet.
AS1539-BTST - 8-Channel 10-Bit I2C SAR ADC | ams OSRAM
The ams OSRAM (formerly austriamicrosystems) AS1539-BTST is a single-supply, low-power, 10-bit successive-approximation-register (SAR) analog-to-digital converter with an 8-channel input multiplexer and a serial I2C interface, packaged in a 16-pin TSSOP. It samples up to 50 ksps and integrates an on-chip 2.5V reference plus an internal oscillator, reducing external component count for compact data-acquisition front ends. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm against a precision DAC to digitize an analog input in N clock cycles for N bits of resolution. SAR ADCs sit in the broader hierarchy of: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. Compared with delta-sigma ADCs, SAR parts offer deterministic latency and lower power at modest resolutions, making them well suited to multiplexed low-frequency sensor acquisition rather than high-precision measurement. Key features include 8 input channels with software-configurable unipolar input range, an internal +2.5V reference (with the option to overdrive with an external reference), single-supply operation from 2.7V to 5.5V, low supply current, an I2C-compatible 2-wire serial interface, and a TSSOP-16 footprint that fits space-constrained designs. The architecture uses a capacitive charge-redistribution DAC with an internal clock and sample-and-hold. The reference defaults OFF at power-up and can be software-enabled; if the internal or external reference is repeatedly toggled, adequate settling time must be inserted between conversion cycles to preserve linearity, as called out in the manufacturer datasheet. Typical applications include multi-channel sensor monitoring, battery-cell monitoring in portable equipment, industrial process controls, and consumer audio/system monitoring where 10-bit resolution is sufficient. Design tip: add a 100 nF decoupling capacitor close to the supply pin and ensure the I2C SCL/SDA lines are pulled up to VDD with appropriate resistors for the chosen bus speed. Settling time after reference switching must be respected for INL/DNL. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, with all data points last verified as of 2026-10-13.
AS1541-BQFT - 10-Bit 4-Ch I2C SAR ADC, 50ksps, 16-TQFN | ams OSRAM
The ams OSRAM AS1541-BQFT is a 10-bit, single-supply, low-power successive-approximation-register (SAR) analog-to-digital converter with a 4-input analog multiplexer and an I2C-compatible serial interface, packaged in a 16-pin TQFN (4x4 mm) with an exposed thermal pad. The device supports up to 4 single-ended input channels, samples at 50 ksps through the SAR core, and operates from a single 2.7V to 5.25V analog supply while drawing a typical supply current of only 1.5 mA at full sampling rate. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a precision data-conversion architecture that uses a binary-search algorithm against an internal precision DAC and comparator to resolve one bit per clock cycle. SAR ADCs are prized for low-latency conversions (no pipeline delay), intrinsic accuracy on a single conversion, low power, and excellent behavior for multiplexed multi-channel data acquisition in industrial, instrumentation, and sensor-conditioning applications. Key features of the AS1541-BQFT include 10-bit resolution with no missing codes, an integrated 4-channel analog multiplexer, an I2C-compatible 2-wire serial interface supporting Standard-Mode (100 kHz) and Fast-Mode (400 kHz) operation, an on-chip track-and-hold, a 2.5V internal reference (with external reference option), and software-configurable unipolar input ranges. The 16-TQFN-EP package exposes a thermal pad that must be soldered to a grounded copper pour to meet the datasheet thermal specification. The architecture combines a charge-redistribution DAC, a high-performance comparator, and a SAR control logic block. The I2C address is hardware-selectable through an AS pin, allowing up to two AS1541 devices to coexist on the same bus. Power-down modes reduce supply current to microampere levels between conversions for battery-friendly duty-cycled acquisition. Typical applications include multi-channel sensor monitoring (temperature, pressure, strain gauge bridges), portable/battery-powered instrumentation, factory automation front-ends, HVAC controllers, programmable logic controller (PLC) analog input modules, and consumer device user-interface controls such as potentiometer or thermistor readout. The 4-channel multiplexer minimizes external analog switch count in multi-sensor systems. When designing with the AS1541-BQFT, decouple AVDD and DVDD with 100 nF ceramic capacitors placed within 5 mm of the supply pins, keep analog and digital ground planes joined at a single point near the exposed pad, and drive the I2C lines with pull-up resistors sized for the chosen bus speed and total capacitance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers evaluate the AS1541-BQFT for multi-channel precision data acquisition designs.
AS1543-BQFT - 12-bit 1Msps 8/4-ch SAR ADC | ams OSRAM
The ams OSRAM AS1543-BQFT is a 12-bit, 1 Msps, low-power, 8/4-channel successive-approximation-register (SAR) analog-to-digital converter housed in a 20-pin TQFN (4x4 mm) package with exposed thermal pad. It operates from a single 2.7 V to 5.25 V supply, supports both single-ended and differential inputs, and provides a flexible serial host interface compatible with SPI, QSPI, MICROWIRE and many DSP serial ports. An SAR ADC is a type of data converter that resolves each conversion in a single clock cycle per bit using a switched-capacitor DAC and a comparator, achieving a deterministic latency and excellent dynamic performance for multiplexed-channel data-acquisition systems. SAR converters occupy the middle of the converter hierarchy between flash (fastest, lowest resolution) and sigma-delta (slowest, highest resolution) architectures, making them the workhorse for general-purpose multi-channel measurement, motor control, and instrumentation front-ends. Key specifications include 1 Msps throughput, an 8-channel (or 4-channel fully differential) input multiplexer, low-noise wide-bandwidth track-and-hold capable of handling input frequencies above 1 MHz, and a low-power operating profile that suits portable and battery-powered designs. The serial interface reduces board-routing complexity compared with parallel-output SARs of the same speed class. Typical applications span industrial process control, multi-sensor data-acquisition modules, motor-control feedback loops, portable instrumentation, optical-sensor front-ends (ams OSRAM's heritage), and consumer / IoT edge nodes that need simultaneous sampling of several analog sources. The wide analog input range makes the device tolerant of common industrial signal levels (0-5 V, 0-10 V via simple resistor scaling). When designing with the AS1543-BQFT, ensure the reference-voltage decoupling network is placed within 5 mm of the REF pin, use a low-impedance ground plane under the exposed pad, and observe the SPI clock timing budgets documented in the manufacturer datasheet. A 2.7-5.25 V supply allows direct connection to a 3.3 V or 5 V MCU rail without level shifters. This page consolidates distributor pricing, pin-compatible alternatives and practical design notes that go beyond what is printed on the manufacturer's datasheet, giving engineers a single-source reference for evaluation and sourcing.
AS1544-BQFT - 12-Bit 1MSPS 4-Ch SAR ADC | ams OSRAM
The ams OSRAM AS1544-BQFT is a 12-bit, 1 MSPS, low-power, 4-channel (2 differential) successive-approximation analog-to-digital converter (SAR ADC) housed in a 20-pin TQFN (4x4) package with exposed thermal pad. Operating from a single 2.7 V to 5.25 V supply, the device delivers high throughput with low power consumption, making it well suited for battery-powered and multi-channel data-acquisition systems. A successive-approximation register (SAR) ADC is a type of data converter that performs a binary search across an internal capacitive DAC to resolve the input voltage one bit at a time per clock cycle. SAR ADCs sit within the broader data-converter IC family (SAR -> ADC -> data converter -> mixed-signal IC) and are favored for applications requiring deterministic latency, single-shot accuracy, and excellent dynamic performance without the complexity of pipeline or delta-sigma architectures. Key specifications of the AS1544-BQFT include a 1 MSPS sampling rate, 4 single-ended or 2 fully differential analog inputs, an integrated channel sequencer for automatic sequential conversions, and an SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface. A wide 2.7 V to 5.25 V analog supply range allows direct interfacing to 3.3 V and 5 V system rails. The 20-pin TQFN-EP (4x4 mm) package provides a small footprint suitable for space-constrained PCB designs while the exposed pad enhances thermal dissipation. The device architecture uses a sample-and-hold front end feeding a precision capacitive DAC and comparator, with conversion timing controlled by the external serial clock (SCLK) which also acts as the master conversion clock. The single-supply operation and channel sequencer eliminate the need for an external multiplexer in multi-channel monitoring applications, reducing both BOM count and software complexity. Typical applications include portable instrumentation, multi-channel sensor monitoring, industrial process control, automotive sensor interface, and battery management systems. The integrated sequencer makes the part especially attractive for cyclic channel-scanning designs where deterministic channel-to-channel timing is required. When designing with the AS1544-BQFT, ensure the SCLK frequency is held within the converter's specified range to maintain 1 MSPS throughput, place decoupling capacitors close to AVDD and DVDD pins, and connect the exposed pad to a clean analog ground plane for optimal thermal and noise performance. This page synthesizes distributor pricing, same-family cross references, and practical design notes not found in the manufacturer datasheet alone.
AS1545 - Dual 12-bit 1MSPS 6-ch SAR ADC | ams OSRAM
The ams OSRAM AS1545 is a dual, 12-bit, 6-channel, 1 MSPS, successive-approximation-register (SAR) analog-to-digital converter in a 32-pin TQFN (5x5 mm) package with exposed thermal pad. According to the ams OSRAM datasheet, the device operates from a single +2.7 V to +5.25 V supply, integrates two synchronized SAR ADCs each preceded by a 6-channel input multiplexer and a high-bandwidth track-and-hold amplifier, and offers a serial data interface for compact microcontroller or DSP readback. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a precision data-conversion architecture that performs one bit at a time using a comparator, a digital-to-analog converter and a binary-search register, achieving 12 to 18 effective bits with no pipeline latency. SAR ADCs sit at the midpoint of the converter hierarchy between flash ADCs (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, lowest bandwidth), and they remain the dominant choice for multiplexed multi-channel data acquisition at 100 kSPS to several MSPS where both speed and DC accuracy matter. Key specifications include 12-bit resolution, 1 MSPS sampling rate per channel, six single-ended analog inputs per ADC (twelve total), single-supply +2.7 V to +5.25 V operation, -40 C to +85 C operating temperature range, and a serial digital interface. The two integrated 6:1 multiplexers double the effective channel count without an external analog switch, while the on-chip track-and-hold supports full-scale step inputs at 1 MSPS without distortion. The architecture uses two simultaneous sampling SAR cores sharing an internal clock generator, a precision bandgap reference buffer, and a unified serial data port. This dual-core topology lets designers acquire two independent signal groups (such as voltage and current on a polyphase power stage) at the same instant, avoiding the time skew that two cascaded ADCs would introduce. Typical applications include industrial process control and PLC analog front ends, multi-phase power-supply voltage and current monitoring, motor-control feedback sensing, medical instrumentation signal acquisition, and portable data loggers or battery-powered sensor hubs. The wide 2.7 V to 5.25 V supply range lets a single part run directly from a 3.3 V MCU rail or a 5 V analog rail. When designing with this part, route the analog and digital grounds as separate islands tied at a single star point under the exposed pad, and place the supply bypass network (10 uF bulk plus 100 nF X7R) within 3 mm of the AVDD and DVDD pins. The exposed thermal pad must be soldered to a continuous ground plane to keep junction temperature within the -40 C to +85 C operating envelope. This page synthesizes ams OSRAM datasheet specifications, distributor pricing, drop-in alternatives in the same 32-TQFN footprint, and practical PCB layout notes not collated in the manufacturer's datasheet alone.
AS89020 - 4-Ch 12-bit Current-Input ADC | ams OSRAM
The ams OSRAM AS89020 is a 4-channel, 12-bit successive approximation register (SAR) analog-to-digital converter with current-mode inputs, packaged in a 20-pin SSOP. Each channel is independently addressable and programmable in 17 sensitivity levels, with a finest sensitivity of approximately 2.8 pA/LSB, making the device well suited to direct readout of photodiodes (e.g. RGB or XYZ color sensors) and other current-output transducers without external transimpedance stages. An ADC of this current-input type belongs to the data-converter family of mixed-signal integrated circuits. The SAR architecture performs a binary search through an internal capacitive DAC each conversion cycle, settling in one clock rather than integrating over many cycles, which preserves input bandwidth and rejects 50 Hz/60 Hz line-frequency noise only with additional filtering. In the broader system taxonomy, the AS89020 sits inside signal-chain ICs -> data converters -> analog-to-digital converters -> precision SAR ADCs -> photo-sensor front-ends. Key features highlighted by the manufacturer datasheet include on-chip temperature compensation, measurement support for both positive and negative input currents (bidirectional), and a fast SPI-compatible serial digital interface for read-out and channel programming. The 17 programmable gain/sensitivity levels per channel allow the application firmware to re-scale the full-scale range as light levels change, which simplifies dynamic-range management in color-sensing applications. The analog front-end integrates low-noise current integrators and a temperature-compensated bandgap reference, removing the need for an external reference IC and reducing BOM count. Because each channel includes its own integrator, the four photodiodes can be read independently and at different integration times, which is useful when matching a red-, green-, blue-, and clear-channel response of a colorimeter. Typical end applications are ambient-light and color-sensing modules, XYZ tristimulus colorimeters, RGB LED feedback loops, industrial photo-interpreters, and handheld colorimeters. The on-chip temperature compensation also allows the part to be used in closed-loop luminous-intensity control where photodiode drift over temperature must be cancelled in firmware. When designing with this part, choose the per-channel integration time and sensitivity setting to keep the photodiode output current well within the programmed full-scale range; over-range currents can saturate the integrator and clip the conversion. Decouple VDD with a low-ESR 100 nF ceramic capacitor placed within a few millimetres of the supply pin to preserve converter linearity. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster path from part selection to prototype build.
CDK1307AILP40 - 12/13-bit 20MSPS Ultra-Low Power ADC | MaxLinear
The MaxLinear CDK1307AILP40 is a 12/13-bit, 20MSPS ultra-low-power analog-to-digital converter (ADC) housed in a 40-pin QFN package. The part is part of the CDK1307A family, which supports 12/13-bit resolution and sampling rates of 20/40/65/80MSPS, with 19mW power dissipation at maximum throughput and 72.6 dB SNR at 8MHz analog input. An analog-to-digital converter (ADC) is an integrated circuit that converts continuous analog signals into discrete digital codes. The ADC is a critical bridge in the signal chain between the analog front end (sensors, amplifiers, filters) and the digital processing domain (DSP, microcontrollers, FPGAs). Within the broader IC taxonomy, ADCs belong to data converters -> mixed-signal ICs -> semiconductor. The CDK1307A family targets high-performance, low-power applications where SNR, throughput, and power budget must all be optimized simultaneously. Key features include 12/13-bit resolution, 20MSPS maximum sampling rate, 19mW ultra-low power dissipation, 72.6 dB SNR at 8MHz analog input, internal reference circuitry, 1.8V core supply, 1.7V to 3.6V I/O supply, and parallel CMOS output interface. The 40-pin QFN package is pin-compatible with the CDK1308 family, simplifying board-level migration between speed grades. The CDK1307A utilizes a pipelined architecture with digital error correction, allowing the device to maintain high SNR performance at high input frequencies. Internal reference circuitry eliminates the need for external reference components, reducing BOM cost and board area while maintaining low drift over temperature. Typical applications include portable and battery-powered imaging systems, portable test and measurement equipment, hand-held oscilloscopes, ultrasound front-end digitization, and low-power digital communications receivers. The 20MSPS throughput makes it well suited to IF sampling and baseband conversion in software-defined radio. When designing with this device, ensure the analog input network (driver amplifier and RC network) is configured to match the ADC's input common-mode and bandwidth. The 1.8V core supply and 1.7-3.6V I/O supply allow direct interfacing to modern low-voltage FPGAs and processors without level shifters. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
CDK1307BILP40 - 13-bit 40MSPS Ultra-Low Power ADC | MaxLinear
The MaxLinear CDK1307BILP40 is an ultra-low-power, 13-bit (configurable to 12-bit) analog-to-digital converter supporting sampling rates from 1 to 40 MSPS, housed in a 40-pin QFN (6x6 mm, ILP40 suffix) package. The part is pin-compatible with the higher-speed CDK1308 family member, allowing designers to drop it onto existing layouts where a 40 MSPS ceiling is adequate. An ADC (analog-to-digital converter) is a data-acquisition component that samples continuous analog signals and outputs discrete digital codes at a sample rate set by an external clock. ADCs sit at the boundary between the analog front end (sensors, amplifiers, filters) and the digital processing block (DSP, FPGA, microcontroller), and are characterized by resolution (bits), sample rate (MSPS), SNR/SFDR dynamic performance, input bandwidth, and power dissipation. Ultra-low-power ADCs such as the CDK1307 family target portable, battery-powered, and thermally constrained systems where every milliwatt matters. Key features include a 1.8 V analog core supply, a 1.7 V to 3.6 V digital I/O supply for direct host-MCU interfacing, internal reference circuitry to minimize external component count, and parallel CMOS output that simplifies PCB routing compared with LVDS interfaces. The 73 dB SNR (typical at 8 MHz input) and 33 mW typical dissipation position this part for low-power imaging, instrumentation, and communications receiver applications where thermal management is a design constraint. Architecturally the CDK1307BILP40 uses a successive-approximation or pipelined core (per the CDK1307 family datasheet) with on-chip sample-and-hold and an internal reference. The wide I/O voltage range (1.7-3.6 V) allows direct connection to 1.8 V, 2.5 V, and 3.3 V MCUs or FPGAs without level shifters, simplifying BOM and reducing board area in multi-rail designs. Typical applications include portable ultrasound front-ends, handheld instrumentation, low-power wireless baseband receivers, industrial sensor digitizers, and consumer imaging pipelines. The 40 MSPS ceiling is well-matched to narrowband IF sampling in software-defined radio and to video-rate processing at reduced resolutions. When designing with the CDK1307BILP40, treat the analog and digital supplies as separate rails and place the decoupling network within 5 mm of the supply pins. The internal reference eliminates the need for an external reference IC in most designs, but PCB layout must still follow good ADC practice: a solid analog ground plane, short analog input traces, and the digital outputs routed away from the analog input to avoid digital-feedback coupling. This page synthesizes distributor inventory, parametric position within the CDK1307 family, application mapping, and practical PCB-layout guidance that goes beyond the bare specification tables published on individual distributor pages.
CDK1307CILP40 - 12/13-bit 65MSPS Ultra-Low Power ADC | Exar
The Exar (formerly Cadeka) CDK1307CILP40 is an ultra-low-power, 12/13-bit analog-to-digital converter (ADC) supporting sample rates of 20/40/65/80 MSPS, housed in a 40-pin LQFP (LP) package. The 65 MSPS speed grade is selected by the device suffix; the family shares a common CMOS control interface, CMOS-compatible output data, internal reference, and proprietary multi-stage pipeline architecture with digital error correction. An analog-to-digital converter (ADC) is a data-conversion integrated circuit that samples continuous analog input signals and converts them into discrete digital codes for downstream digital signal processing. The CDK1307 sits inside the data-converter -> signal-chain -> mixed-signal IC hierarchy and is typically paired with a low-noise operational amplifier front-end and a downstream FPGA, DSP, or microcontroller. The "CILP40" suffix encodes both the temperature grade (-40 C to +85 C industrial range) and the 40-pin LQFP package. Key features per the manufacturer datasheet include a single 3.3 V analog supply, internal 1.2 V reference, CMOS digital outputs, low standby current of 9 mW typical at 65 MSPS, and an external clock input with duty-cycle stabilizer. The converter accepts single-ended analog inputs typically centered at 1.5 V with a 1 Vpp full-scale range, and provides 12-bit or 13-bit selectable resolution through the configuration register. Architecturally, the CDK1307CILP40 uses a multi-stage pipelined switched-capacitor core with proprietary digital error correction. This pipeline topology enables high sample rates (up to 80 MSPS) at low power consumption by distributing the conversion work across cascaded stages. The internal bandgap-based reference and integrated clock-receiver circuitry minimize external component count. Typical applications include portable ultrasound front-ends, handheld industrial instrumentation, low-power imaging pipelines, IF/baseband digitizing for software-defined radio, and battery-powered test equipment. Designers also use the CDK1307 in medical patient-monitoring subsystems and portable oscilloscope front-ends where power budget is critical. Design tip: route the analog and digital grounds as separate nets that join only at the EP/exposed-pad or at the AGND/DGND pin per the datasheet layout example. Place input coupling capacitors close to the AIN pin and bypass AVDD/DVDD with 0.1 uF ceramic + 10 uF tantalum pairs. Maintain a stable low-jitter clock at ENC+/ENC- to avoid degrading SNR. This page synthesizes distributor stock data, drop-in alternatives, and practical layout guidance not collected in a single place in the manufacturer datasheet.
CDK1307DILP40 - 13-bit 80MSPS 60mW Ultra-Low Power ADC | MaxLinear
The MaxLinear (formerly Cadeka) CDK1307DILP40 is an ultra-low-power, 13-bit resolution analog-to-digital converter (ADC) that samples at up to 80 MSPS while consuming only 60 mW, packaged in a 40-pin QFN. The CDK1307DILP40 is the 80 MSPS speed grade (suffix D) in the CDK1307 ADC family and is pin-compatible with the higher-resolution CDK1308 sibling device, allowing system designers to migrate between 12-bit, 13-bit and 14-bit resolutions on the same PCB land pattern. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time, continuous-amplitude analog signals into discrete-time, discrete-amplitude digital codes. The CDK1307 family belongs to the pipeline ADC category, which uses a multi-stage switched-capacitor architecture to deliver high sample rates at moderate resolution. Within the broader IC hierarchy, an ADC sits under data converters, which themselves are a sub-category of data acquisition ICs and ultimately signal conditioning semiconductors used in virtually every electronic system that bridges the analog physical world with digital processors. Key features highlighted in the verified data include a 72.4 dB SNR at an analog input frequency of 8 MHz, internal reference circuitry that eliminates the need for an external voltage reference, a 1.8 V core supply voltage, and a wide 1.7 V to 3.6 V I/O supply range that interfaces directly to 1.8 V, 2.5 V, and 3.3 V logic. The differential clock interface is optimized for low jitter, and a highly linear track-and-hold amplifier (THA) preserves dynamic performance at input frequencies up to the Nyquist limit. Two idle modes - Standby and Power Down - provide fast wake-up with minimized quiescent energy, which is critical for battery-powered or duty-cycled systems. The pipeline architecture uses successive low-resolution stages with digital error correction, achieving 13-bit linearity without laser trimming. Parallel CMOS outputs simplify the digital interface to FPGAs, ASICs, or microcontrollers without requiring an external serializer. The combination of high SNR, low power dissipation, and a small 40-pin QFN footprint makes the CDK1307DILP40 suitable for portable instrumentation where every milliwatt and every square millimeter matter. Typical applications include medical imaging front ends, portable test equipment, digital oscilloscopes, IF-sampling communications receivers, and handheld industrial sensors. The wide I/O voltage range also simplifies interfacing to modern low-voltage FPGAs without level shifters. When designing with this part, ensure the analog input network presents a differential drive to achieve the rated 72.4 dB SNR. Decouple the 1.8 V analog supply and the I/O supply separately near the IC pins, and provide a clean low-jitter clock through the differential CLK+/CLK- pins to maximize spurious-free dynamic range. This page consolidates distributor pricing, parametric data, and drop-in-compatible alternatives for the CDK1307DILP40, providing practical engineering context beyond the raw manufacturer datasheet.
CDK1308AILP40 - 10-bit 20MSPS Ultra-Low-Power ADC | MaxLinear
The MaxLinear CDK1308AILP40 is a 10-bit, 20 MSPS ultra-low-power analog-to-digital converter (ADC) housed in a 40-pin QFN package. According to the manufacturer datasheet, the device features internal reference circuitry, a CMOS control interface, CMOS output data, and digital error correction. It is part of the CDK1308 family which scales sample rate across 20/40/65/80 MSPS variants, allowing system designers to select the bandwidth that matches their signal chain. As of 2026-10-13, the part is in production and available through authorized distributors including Mouser, Octopart-listed stockists, and MaxLinear franchised partners. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous-time, continuous-amplitude analog signals into discrete-time, discrete-amplitude digital codes. The CDK1308 family sits in the precision data-converter category, a sub-family of signal-chain data acquisition ICs that bridge analog sensors and digital processors. Within the broader IC hierarchy: ADC -> data converter -> data acquisition IC -> mixed-signal IC -> semiconductor. Successive-approximation (SAR) and pipelined architectures dominate the 1-80 MSPS tier where the CDK1308 competes, with power consumption, channel count, and SNR/ENOB being the primary differentiators. Key features of the CDK1308AILP40 include a 20 MSPS maximum sampling rate, 10-bit resolution, ultra-low power consumption relative to competing 10-bit ADCs at the same throughput, single-supply operation, CMOS-compatible digital outputs, and a parallel data interface. The device employs digital error correction to mitigate pipeline-stage linearity errors, and a proprietary internal reference that eliminates the need for an external reference IC in most designs. The combination of internal reference, small QFN package, and low quiescent power makes the part attractive for portable, space-constrained designs. Typical applications for the CDK1308AILP40 include portable test and measurement equipment, USB oscilloscope front ends, medical imaging signal conditioning, and mid-bandwidth industrial instrumentation. Designers choose this part when 10-bit resolution is sufficient and the primary design constraint is power budget rather than absolute noise performance. Compared with 12/14-bit alternatives, the 10-bit architecture trades dynamic range for substantially lower power and smaller die area, which translates directly into battery run-time and PCB footprint. When designing with the CDK1308AILP40, route the analog inputs with guarded differential pairs and decouple AVDD/DRVDD with separate 1uF and 0.1uF ceramic capacitors placed as close as possible to the supply pins. The PD_N (power-down) and SLP_N (sleep) pins can be used for duty-cycled operation in battery-powered designs. Drive the analog input with a low-impedance, low-noise op-amp front end, and ensure the clock source is a low-jitter LVCMOS or LVPECL driver to avoid degrading SNR. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet. Specifications are referenced to the MaxLinear CDK1308 datasheet family; consult the manufacturer document for absolute maximum ratings and characterization curves.
CDK1308BILP40 - 10-bit 40MSPS Ultra-Low Power ADC | MaxLinear
The MaxLinear (formerly Exar Corporation) CDK1308BILP40 is a 10-bit, 40 MSPS ultra-low-power analog-to-digital converter (ADC) housed in a 40-pin QFN package (LP40). The CDK1308 family is offered in four speed grades (20/40/65/80 MSPS), and the BILP40 suffix denotes the 40 MSPS speed grade with industrial temperature range. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous-time, continuous-amplitude analog signals into discrete digital codes. Within the broader signal chain hierarchy, ADCs sit between analog front-end conditioning (amplifiers, anti-alias filters) and digital processing (FPGA, microcontroller, DSP), making them a critical component in data acquisition systems, imaging, and communications equipment. Ultra-low-power ADCs such as the CDK1308 target portable and battery-powered applications where milliwatts-per-sample directly impact battery life and thermal budgets. Key features include 25 mW typical power dissipation at 40 MSPS, 61.6 dB SNR at an 8 MHz analog input, internal reference circuitry (eliminating external reference components), a 1.8 V analog core supply, and a separate 1.7 V to 3.6 V digital I/O supply for flexible host interfacing. The device uses a proprietary CMOS architecture with digital error correction, delivering high linearity while keeping die area and power low. Parallel CMOS outputs simplify connection to FPGAs, ASICs, and microcontrollers without requiring an external serializer. The CDK1308B is pin-compatible with the CDK1307 family, enabling system scalability between 10-bit (CDK1308) and 12-bit (CDK1307) resolutions on the same PCB. This makes the part attractive for medical imaging, portable test equipment, digital oscilloscopes, and IF communications designs where a single hardware platform must support multiple performance tiers. Typical applications span handheld ultrasound front-ends, digital oscilloscopes, IF sampling for software-defined radio (SDR), and portable industrial inspection cameras. The combination of low power, small QFN footprint, and internal reference simplifies multi-channel designs where board area and BOM cost are constrained. When designing with the CDK1308BILP40, decouple AVDD and DVDD separately with 1 µF and 100 nF capacitors placed as close to the pins as possible. Drive the analog input through a wideband op-amp or transformer; the input is a switched-capacitor structure that benefits from a low-impedance source to preserve SNR at high input frequencies.