ADC/DAC
Products (2398)
AD7606BBCHIPS - 16-Bit 8-Ch 800kSPS DAS ADC | Analog Devices
The Analog Devices AD7606BBCHIPS is a 16-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS) with eight channels, offering 800 kSPS throughput per channel with bipolar input capability. Each of the eight channels integrates analog input clamp protection, a programmable gain amplifier (PGA), a low-pass filter, and a 16-bit successive approximation register (SAR) analog-to-digital converter, all on a single die. A data acquisition system (DAS) is a signal-chain subsystem that converts real-world analog signals into digital data for processing. Within the ADC hierarchy, the AD7606BBCHIPS sits in the simultaneous-sampling SAR ADC family, which is preferred over multiplexed architectures when multiple channels must be sampled at exactly the same instant, such as in three-phase power measurement. Key features include true bipolar input operation from a single supply, an on-chip antialiasing filter with digitally programmable bandwidth, and a 5 MΩ analog input impedance. The high input impedance results in less than 20 LSB bipolar zero code error when an input is disconnected and pulled to ground through a 10 kΩ external resistor, eliminating the need for external bipolar-supply driver op amps. Architecturally, the AD7606BBCHIPS uses per-channel signal chains with integrated clamp protection, allowing direct connection to sensors and transformers while tolerating overvoltage faults. According to the ADI application note AN-1559, the AD7606B generation is a drop-in upgrade from the original AD7606 with higher input impedance, faster throughput, and extended temperature range. Typical applications include power line monitoring and protective relays, three-phase motor and inverter control, industrial automation DAQ modules, and medical instrumentation. The 800 kSPS simultaneous sampling across all eight channels makes it well suited to power quality analyzers and grid monitoring equipment. A key design consideration is that higher on-chip input impedance allows reduced-power signal sourcing, but the digital interface (parallel or serial SPI) must respect throughput timing when running at full 800 kSPS across all channels. Supply sequencing of the analog and digital rails should follow the datasheet power-up order. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, verified as of 2026-09-14.
AD7606BSTZ - 16-Bit 8-Ch 200kSPS Simultaneous DAS ADC | Analog Devices
The Analog Devices AD7606BSTZ is a 16-bit, 8-channel, simultaneous-sampling data acquisition system (DAS) housed in a 64-lead LQFP (10x10 mm) package. It integrates analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge-redistribution successive-approximation ADC, a 2.5V on-chip reference and reference buffer, and high-speed serial and parallel interfaces. The device accepts true bipolar input ranges of ±10V or ±5V and runs from a single 5V analog supply, with a separate 2.3V-to-5V VDRIVE rail for the digital host interface. Throughput is 200 kSPS per channel, with all eight channels sampled at the same instant on the rising edge of CONVST. A Data Acquisition System (DAS) is a complete mixed-signal front-end that conditions, samples, and digitizes multiple analog signals for a downstream host processor. The AD7606BSTZ sits in the family of simultaneous-sampling ADCs - between analog sensors and a DSP, FPGA, or microcontroller - and is a member of the broader converter hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. Simultaneous-sampling DA conversion preserves the phase relationship between channels, a property that single-channel sequentially-sampling ADCs cannot deliver. Key differentiating features include eight truly simultaneous track-and-hold channels, on-chip oversampling digital filter with 2x/4x/8x/16x/32x/64x ratios, integrated 2.5V reference with 10 ppm/°C drift, 1 MΩ analog input impedance that removes the need for external driver op-amps, and parallel/serial/SPI/QSPI/MICROWIRE-compatible digital I/O. Hardware-mode operation lets a host start conversions without writing any registers, useful for deterministic, low-latency control loops. Technically, the ADC core is a charge-redistribution SAR converter followed by a flexible digital filter. The analog front end combines ±25V tolerant input clamps, a 1 MΩ input buffer, and a second-order Butterworth antialiasing filter with a -3 dB corner near 22 kHz at 200 kSPS. The integrated reference can be overdriven by an external low-impedance source when tighter accuracy is needed. Power consumption is approximately 215 mW when all eight channels sample at 200 kSPS from ±10V inputs. Typical uses are three-phase power-line monitoring and protective relays (where phase-angle accuracy between voltage and current is critical), industrial motor control feedback, multi-axis vibration and modal analysis, and medical instrumentation. The bipolar ±10V/±5V ranges interface directly to current shunts and resistor-divider voltage networks, eliminating external signal conditioning. The eight-channel count suits four-quadrant power analyzers and multi-axis sensor pods without requiring an external mux. When designing with this device, place 10 µF + 0.1 µF decoupling capacitors close to each AVCC pin and a single 10 µF + 0.1 µF pair on VDRIVE. Drive CONVSTA and CONVSTB simultaneously to guarantee true simultaneous sampling across all eight channels. If higher DC accuracy is required, drive REFIN/REFOUT from an external low-impedance reference rather than using the internal 2.5V source. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet - useful for engineers qualifying second sources or planning migrations to the newer AD7606B family.
AD7606BSTZ - 16-Bit 8-Ch Simultaneous ADC | Analog Devices
The AD7606BSTZ is a 16-bit, 8-channel, simultaneous sampling analog-to-digital data acquisition system (DAS) from Analog Devices. It integrates analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge redistribution successive approximation ADC, a flexible digital filter, a 2.5V reference and reference buffer, and high-speed serial and parallel interfaces. The device operates from a single 5V supply and accepts bipolar input ranges of ±5V and ±10V, making it ideal for power-line monitoring and industrial data acquisition. A data acquisition system (DAS) is a complete signal chain that conditions, samples, and digitizes analog signals. The AD7606BSTZ belongs to the family of simultaneous sampling ADCs, which capture multiple channels at the same instant, preserving phase relationships critical for power metering and vibration analysis. It sits between analog sensors and a digital host processor, converting real-world signals into digital words for processing. Key features include 16-bit resolution, 200 kSPS throughput per channel, 8 simultaneous sampling channels, and a 64-lead LQFP package. The device offers a parallel, serial, SPI, QSPI, and MICROWIRE interface, providing flexibility for various host controllers. The integrated 2.5V reference and buffer eliminate the need for external reference components, simplifying design and reducing BOM cost. Technically, the AD7606BSTZ uses a successive approximation register (SAR) architecture with a charge redistribution DAC. The analog front end includes a second-order antialiasing filter with a cutoff frequency of 22 kHz, which attenuates out-of-band noise. The digital filter provides programmable oversampling ratios to further reduce noise. The device operates over the industrial temperature range of -40°C to +85°C and is available in a 10x10 mm LQFP package. Typical applications include power-line monitoring, protective relays, motor control, and multi-axis vibration analysis. The simultaneous sampling capability ensures accurate phase measurement between voltage and current channels, which is essential for power quality analysis. The high input impedance and integrated protection make it robust for harsh industrial environments. When designing with the AD7606BSTZ, ensure proper decoupling of the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors placed close to the pins. The REFIN/REFOUT pin can be driven by an external reference if higher accuracy is required, but the internal 2.5V reference is sufficient for most applications. The CONVST pins should be driven simultaneously to achieve true simultaneous sampling.
AD7606BSTZ-4 - 16-Bit 4-Ch Simultaneous Sampling ADC | Analog Devices
The AD7606BSTZ-4 from Analog Devices is a 16-bit, 4-channel simultaneous sampling analog-to-digital data acquisition system (DAS) in a 64-lead LQFP (10x10 mm) package. It operates from a single 5 V supply and accommodates true bipolar input signals of ±10 V and ±5 V while sampling at throughput rates up to 200 kSPS for all channels. The device integrates analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge redistribution successive approximation ADC, a flexible digital filter, a 2.5 V reference, and reference buffer. The AD7606BSTZ-4 supports multiple serial interface modes including DSP, MICROWIRE, QSPI, and SPI, as well as a parallel interface, making it versatile for various microcontroller and DSP connections. A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data for processing. The AD7606BSTZ-4 integrates the entire front-end, eliminating the need for external op-amps, filters, and references, which simplifies design and reduces board space. As a simultaneous sampling ADC, it captures all four channels at the same instant, which is critical for applications requiring phase-accurate measurements across multiple inputs, such as power monitoring and motor control. Key features include 1 MΩ analog input impedance regardless of sampling frequency, input clamp protection up to ±16.5 V, and a 3 dB cutoff frequency of 22 kHz for the antialiasing filter, providing 40 dB antialias rejection at 200 kSPS. The flexible digital filter is pin-driven, yielding improvements in SNR and reducing the 3 dB bandwidth. The device operates over the industrial temperature range of -40°C to +85°C and is RoHS compliant. The AD7606BSTZ-4 uses a charge redistribution successive approximation architecture, which offers excellent DC accuracy and low power consumption. The integrated 2.5 V reference and buffer ensure stable conversion results without external components. The device also features a flexible digital filter that can be configured via the oversampling pins to trade off throughput for noise performance, allowing designers to optimize SNR for their specific application. Typical applications include power line monitoring, protective relays, motor control, and industrial data acquisition systems. The simultaneous sampling capability and high input impedance make it ideal for measuring three-phase voltages and currents with phase accuracy. The wide input range and clamp protection ensure robust operation in harsh industrial environments. When designing with the AD7606BSTZ-4, ensure that the analog input signals are within the specified ±10 V or ±5 V ranges and that the supply decoupling is adequate. The device requires a clean 5 V supply and proper grounding to achieve the specified performance. The digital interface should be configured according to the host processor's requirements, and the oversampling pins should be set to achieve the desired balance between throughput and noise.
AD7606BSTZ-4RL - 4Ch 16-Bit 200kSPS ADC DAS | Analog Devices
The AD7606BSTZ-4RL is a 4-channel, 16-bit, simultaneous sampling analog-to-digital data acquisition system (DAS) from Analog Devices, packaged in a 64-lead LQFP (10x10 mm). It integrates analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge redistribution successive approximation ADC, a flexible digital filter, a 2.5V reference, and reference buffer, all on a single chip. Operating from a single 5V analog supply and a 2.3V to 5V VDRIVE interface supply, it supports true bipolar input ranges of ±10V and ±5V, making it ideal for industrial power monitoring, motor control, and data acquisition systems. A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data for processing. The AD7606BSTZ-4RL belongs to the family of simultaneous sampling ADCs, which capture multiple channels at the exact same instant, preserving phase relationships critical for applications like three-phase power analysis. As a DAS, it integrates front-end protection, filtering, and conversion, reducing external component count versus discrete ADC implementations. Key features include 16-bit resolution with 200 kSPS throughput on all channels, 95.5 dB SNR, and a flexible digital filter that improves noise performance. The device offers parallel, serial SPI, QSPI, MICROWIRE, and DSP-compatible interface options. The on-chip 2.5V reference and buffer eliminate external reference components, while the 1 MΩ analog input impedance simplifies driver design. Technically, the AD7606BSTZ-4RL uses a successive approximation register (SAR) architecture with charge redistribution, achieving high accuracy and low power. The integrated second-order antialiasing filter simplifies external filtering, and input clamp protection handles overvoltage up to ±16.5V. The device operates over the industrial temperature range of -40°C to +85°C. Typical applications include power line monitoring, motor control, industrial automation, and test and measurement equipment. Its simultaneous sampling capability is essential for accurate phase measurement in polyphase power systems, while high input impedance and integrated protection make it robust for direct sensor interfacing. When designing with this device, ensure proper decoupling of AVCC and VDRIVE supplies, and tune the digital filter settings to balance noise versus throughput. Careful PCB layout is needed to minimize digital noise coupling into the analog inputs.
AD7606BSTZ-6RL - 16-Bit 6-Ch Simultaneous Sampling ADC | Analog Devices
The AD7606BSTZ-6RL is a 16-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS) with six channels, manufactured by Analog Devices. It integrates analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge redistribution successive approximation ADC, a flexible digital filter, a 2.5 V reference and reference buffer, and high-speed serial and parallel interfaces. The device operates from a single 5 V supply and accepts bipolar input ranges of ±10 V, ±5 V, and ±2.5 V, making it ideal for industrial power-line monitoring, motor control, and data acquisition systems. A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data for processing. The AD7606BSTZ-6RL is a specific type of DAS that combines multiple analog front-end components into a single IC, reducing board space and design complexity. It belongs to the family of simultaneous sampling ADCs, which capture all channels at the same instant, preserving phase relationships between channels—critical for applications like three-phase power monitoring where phase accuracy is essential. Key features include a 200 kSPS throughput rate per channel, 16-bit resolution with no missing codes, and a flexible digital filter that can be configured for different output word rates. The device supports multiple interface options: parallel, serial, SPI, QSPI, MICROWIRE, and DSP-compatible serial interfaces, providing design flexibility. The integrated 2.5 V reference and buffer eliminate the need for external reference components, simplifying the BOM. The analog input clamp protection ensures robustness against overvoltage conditions up to ±16.5 V. Technically, the AD7606BSTZ-6RL uses a charge redistribution successive approximation architecture, which offers excellent linearity and low power consumption. The second-order antialiasing filter provides -80 dB attenuation at the Nyquist frequency, reducing the need for external filtering. The device operates over the industrial temperature range of -40°C to +85°C and is available in a 64-lead LQFP (10x10 mm) package, suitable for space-constrained designs. Typical applications include power line monitoring, protective relays, motor control, and multi-phase data acquisition systems. The simultaneous sampling capability ensures accurate phase measurement, while the high input impedance and integrated protection make it robust for harsh industrial environments. When designing with this device, ensure proper decoupling of the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors placed close to the pins. The REFIN/REFOUT pin can be overdriven with an external reference if higher accuracy is required, but the internal 2.5 V reference is sufficient for most applications.
AD7606BSTZ-RL - 16-Bit 8-Ch Simultaneous ADC | Analog Devices
The AD7606BSTZ-RL is a 16-bit, 8-channel, simultaneous sampling analog-to-digital data acquisition system (DAS) from Analog Devices. It integrates analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge redistribution successive approximation (SAR) ADC, a flexible digital filter, a 2.5 V reference and reference buffer, and high-speed serial and parallel interfaces. The device operates from a single 5 V supply and accepts bipolar input ranges of ±5 V and ±10 V, making it ideal for industrial power-line monitoring, motor control, and multi-phase energy measurement. A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data for processing. The AD7606 integrates the entire front-end, eliminating the need for external op-amps, references, and antialiasing filters, thereby reducing board space and design complexity. As a simultaneous sampling ADC, it captures all channels at the same instant, which is critical for applications requiring phase-accurate measurements across multiple inputs. Key features include a 200 kSPS throughput rate per channel, 16-bit resolution with no missing codes, and a 2.5 V internal reference with ±1% accuracy. The device offers both serial (SPI/QSPI/MICROWIRE) and parallel interfaces, and supports daisy-chaining for multiple devices. The flexible digital filter can be configured to improve noise performance, and the analog input clamp protects against overvoltage conditions up to ±16.5 V. The AD7606 uses a charge redistribution SAR architecture, which provides excellent linearity and low power consumption. The integrated antialiasing filter simplifies external filtering requirements, and the track-and-hold amplifier ensures accurate sampling of fast-changing signals. The device operates over the industrial temperature range of -40°C to +85°C and is available in a 64-lead LQFP package. Typical applications include power line monitoring, protective relays, motor control, and multi-phase energy measurement. The simultaneous sampling capability ensures accurate phase relationships between channels, which is essential for power quality analysis. The device is also suitable for vibration analysis and other multi-channel data acquisition systems. When designing with the AD7606, ensure that the analog input range is properly configured via the RANGE pin, and that the reference decoupling capacitor is placed close to the REFIN/REFOUT pin. The digital interface should be matched to the host processor's voltage level, and the AVCC and DVCC supplies should be decoupled with 0.1 µF and 10 µF capacitors.
AD7606C-16BSTZ - 16-bit 8-ch 1MSPS Bipolar DAS ADC | ADI
The Analog Devices AD7606C-16BSTZ is a 16-bit, simultaneous-sampling, 8-channel data acquisition system (DAS) with 1 MSPS per-channel throughput, packaged in a 64-pin LQFP (10x10 mm) with an exposed pad. Each channel integrates analog input clamp protection, a programmable gain amplifier (PGA), a low-pass anti-alias filter, and a 16-bit successive-approximation-register (SAR) ADC, all operating from a single 5 V analog supply. A data acquisition system (DAS) is an integrated subsystem that combines multiple ADC channels with input signal conditioning, references, and interfaces so an embedded MCU, DSP, or FPGA can digitize many analog sensors simultaneously. Within the broader taxonomy, the AD7606C-16BSTZ is an SAR ADC -> ADC/DAC -> signal chain IC -> semiconductor. ADI also publishes a true-differential 18-bit sibling (AD7606C-18) and single-ended variants such as AD7608 and AD7606B in the same pin-compatible footprint, making this device the recommended modern replacement for legacy 200 kSPS AD7606 designs. Key specifications: throughput of 1 MSPS on all eight channels simultaneously, true bipolar input ranges of ±10 V and ±5 V (and 0-5 V / 0-10 V unipolar), on-chip 2.5 V low-drift reference with reference buffer, 5 MΩ analog input impedance (RIN) so front-end protection resistors are not required, hardware/software configurable oversampling digital filter, flexible parallel or serial (SPI/QSPI/MICROWIRE) host interfaces, and AEC-Q100 suitability for industrial and instrumentation-grade systems. Design considerations: at 1 MSPS with eight channels streaming, the digital interface bus activity is heavy, so keep the LQFP exposed pad soldered to a continuous ground pour for thermal dissipation and to lower digital return impedance. For best THD and SNR, drive AVDD/REF_CAP from low-noise regulators (e.g., LT3042 / LT3045) and decouple VDRIVE independently from the 5 V AVCC rail so digital transients do not couple into the analog front end. Typical applications include three-phase power-line monitoring, multi-axis industrial motor control, simultaneous data acquisition front ends, instrumentation and test equipment, and medical multi-channel patient monitoring. According to the ADI datasheet, the AD7606C-16 family is recommended by ADI for new designs over the legacy AD7606, and the LQFP-64 footprint is shared so firmware/PCB migration is trivial.
AD7606C-18BSTZ - 18-Bit 8-Ch 1MSPS DAS ADC | Analog Devices
The Analog Devices AD7606C-18BSTZ is an 18-bit, 8-channel, simultaneous-sampling data acquisition system (DAS) based on successive-approximation-register (SAR) ADC architecture, sampling at up to 1 MSPS per channel and housed in a 64-pin LQFP (10 mm x 10 mm) package. The device integrates analog input clamp protection, a programmable gain amplifier (PGA), a low-pass analog input filter, and an 18-bit SAR ADC per channel, delivering true bipolar input ranges of ±10 V, ±5 V, and 0 V to 10 V from a single 5 V analog supply. A 2.5 V on-chip low-drift precision reference and a reference buffer are included, eliminating the need for external reference components in most designs. A simultaneous-sampling SAR ADC is a category of precision data converter that captures the instantaneous voltage on all input channels at the same instant under one common convert-start signal, then performs a binary-search quantization in successive bit decisions per channel. The AD7606C-18 sits inside the hierarchy: SAR ADC -> data acquisition system (DAS) -> precision ADC -> analog-to-digital converter -> mixed-signal IC. Synchronous multi-channel acquisition is essential when phase relationships between signals must be preserved. Key features include an on-chip digital filter with oversampling ratios from 2x to 256x, integrated analog input clamps with ±16.5 V tolerance, a per-channel PGA with hardware gain settings of 1, 2, 4, 8, 16, 32, and 64, and both parallel and serial (SPI-/QSPI-/MICROWIRE-/DSP-compatible) host interfaces. Throughput remains 1 MSPS per channel across all eight channels simultaneously, with SNR of approximately 91 dB and THD near -100 dB at the maximum sampling rate. The 5 V single-supply operation simplifies system power design versus traditional ±15 V industrial front ends. The architecture pairs a high-impedance input front end (typically 1 MΩ) with a charge-redistribution SAR core, controlled by an internal precision reference and a flexible sequencer. Hardware overrange detection and per-channel sequencer flags accelerate FPGA-/DSP-side post-processing. An extended operating temperature range of -40 °C to +85 °C supports industrial deployment, and the part is rated to withstand ±16.5 V analog overvoltages on every input without damage. Typical applications include three-phase power-line monitoring and protection relays, multi-axis industrial motor control, patient monitoring ECG/EEG front ends, vibration and structural-health data loggers, and high-channel-count data acquisition modules. The combination of true bipolar inputs, simultaneous sampling, integrated analog front end, and on-chip reference makes the AD7606C-18 a single-chip replacement for legacy multi-component discrete DAS front ends. When designing with the AD7606C-18, allocate the LQFP-64 land pattern with thermal copper pour tied to the exposed pad (EP) for lowest junction-to-ambient resistance, and use 100 nF plus 10 µF decoupling on AVDD/AVDD_DR with 100 nF plus 10 µF on VDRIVE close to the device. Drive CONVST with a clean low-jitter source; jitter couples directly to the SNR budget. For best DC accuracy, allow the on-chip reference a 5 ms settling after power-up. This page synthesizes distributor stock and price tiers (DigiKey), verified drop-in alternatives, parametric comparison vs Analog Devices pin-compatible siblings, and practical PCB/thermal/decoupling notes not collated in the manufacturer datasheet alone.
AD7606TSTZ-EP - 16-Bit 8-Channel Simultaneous Sampling DAS | Analog Devices
The Analog Devices AD7606TSTZ-EP is a 16-bit, 8-channel simultaneous sampling data acquisition system (DAS) with a 150 kSPS per-channel throughput rate, dual true bipolar input ranges of ±10 V and ±5 V, and a single 64-pin LQFP (10x10 mm) package. It integrates analog input clamp protection, a second-order antialiasing filter, track-and-hold amplifiers, an 8-channel 16-bit charge redistribution SAR ADC, a flexible digital filter, a 2.5 V reference and reference buffer, and both high-speed serial and parallel interfaces. A data acquisition system (DAS) is a specialized analog-to-digital converter subsystem that combines signal conditioning, sampling, and conversion in one integrated circuit. Within the hierarchy of signal chain components, a DAS sits above a plain ADC: it adds input protection, filtering, and channel sequencing so a processor can digitize multiple bipolar sensors through a single device without external op amps or bipolar supplies. Key features include a 1 MΩ analog input impedance that is constant regardless of sampling frequency, single-supply operation (5 V analog, 3.3 V or 5 V digital) that eliminates driver op amps and external bipolar rails, and an antialiasing filter with a 3 dB cutoff of 23 kHz. The pin-driven digital filter improves SNR and reduces 3 dB bandwidth on demand. Interfaces include SPI, QSPI, MICROWIRE, and parallel/serial modes. As an ADI Enhanced Product (EP), the AD7606TSTZ-EP supports defense and aerospace applications under the ADI AQEC standard, with a military temperature range of -55C to +125C, a controlled manufacturing baseline, one assembly/test site, one fabrication site, product change notification, and qualification data available on request (per Analog Devices AD7606-EP product page and datasheet). Typical applications include power-line monitoring and protective relays in grid infrastructure, multi-channel industrial control and motor monitoring, and aerospace/defense instrumentation where extended temperature range and controlled manufacturing are mandatory. Design consideration: the on-chip 2.5 V reference and reference buffer remove the need for an external precision reference in most designs, but for best noise performance at 16-bit resolution, decouple the reference buffer closely and allow the digital filter to trade bandwidth for SNR. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
AD7608BSTZ - 18-Bit 8-Ch Simultaneous Sampling ADC | Analog Devices
The Analog Devices AD7608BSTZ is an 8-channel, 18-bit, bipolar, simultaneous sampling data acquisition system (DAS) with integrated analog input clamp protection, second-order antialiasing filter, track-and-hold amplifiers, an 18-bit charge redistribution SAR ADC, a flexible digital filter, a 2.5 V reference and buffer, and high-speed parallel/serial interfaces. Housed in a 64-lead LQFP (10x10 mm) package, it operates from a single 5 V supply and accepts ±10 V, ±5 V, and ±2.5 V analog inputs with a 200 kSPS per-channel throughput. What is a data acquisition system? A DAS is a complete signal chain that conditions, samples, and converts analog signals into digital data. The AD7608 integrates all essential analog front-end functions — clamping, filtering, track-and-hold, SAR conversion, and digital interface — reducing external circuitry. As part of the simultaneous sampling ADC family, it captures all channels at the same instant, preserving phase relationships that are critical in three-phase power analysis, vibration monitoring, and motor current sensing. Key features include 18-bit resolution, 200 kSPS per channel, true simultaneous sampling across eight channels, and bipolar input ranges that eliminate external level-shifting. The second-order antialias filter has a 22 kHz 3 dB cutoff and provides 40 dB rejection at 200 kSPS. The programmable pin-driven digital filter trades bandwidth for improved SNR. The integrated 2.5 V reference and buffer maintain gain stability over temperature. Both parallel and SPI/DSP serial interfaces are available, simplifying connection to MCUs, DSPs, and FPGAs. Architecturally, the charge redistribution SAR approach provides excellent linearity and low power for a multi-channel precision converter. The input clamp protection and antialias filter simplify front-end design in harsh industrial environments. The flexible digital filter allows engineers to optimize noise versus output data rate for each application. Typical applications include power-line monitoring, protective relays, motor control, multi-phase energy metering, vibration analysis, and test and measurement instrumentation. The simultaneous sampling capability is essential for accurate phase measurement and multi-axis synchronization. The 18-bit resolution enables detection of small signal variations that 16-bit systems miss. When designing with the AD7608, place decoupling capacitors close to the AVCC and DVCC pins, and route the reference decoupling capacitor adjacent to REFIN/REFOUT. Balance the oversampling ratio against settling time so the increased digital filtering does not reduce the effective throughput below system requirements.
AD7609BSTZ - 18-Bit 8-Ch Simultaneous Sampling ADC | Analog Devices
The AD7609BSTZ is an 18-bit, 8-channel, true differential, simultaneous sampling analog-to-digital data acquisition system (DAS) from Analog Devices. It integrates analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, an 18-bit charge redistribution successive approximation ADC, a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces. The device operates from a single 5 V supply and supports a throughput rate of 200 kSPS, making it ideal for power line monitoring, motor control, and industrial data acquisition. A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data. The AD7609BSTZ belongs to the family of simultaneous sampling ADCs, which capture multiple channels at the same instant to preserve phase relationships between signals. This is critical in applications like three-phase power monitoring and multi-axis motor control, where timing skew between channels would introduce measurement errors. The DAS integrates the entire analog front end, reducing external component count and simplifying design. Key features include 18-bit resolution with no missing codes, 200 kSPS throughput on all channels, true differential inputs with a ±5 V or ±10 V range, and a 2.5 V internal reference with buffer. The device offers both serial (SPI/DSP) and parallel interfaces, and includes a digital filter for noise reduction. The input clamp protection tolerates voltages up to ±16.5 V, enhancing robustness in industrial environments. The AD7609BSTZ uses a charge redistribution successive approximation architecture, which provides excellent linearity and low power consumption. The integrated antialiasing filter simplifies external filtering requirements, and the track-and-hold amplifiers ensure accurate sampling of fast-changing signals. The device operates over the industrial temperature range of -40°C to +85°C and is available in a 64-lead LQFP (10x10 mm) package. Typical applications include power line monitoring, protective relays, motor control, and industrial data acquisition systems. The simultaneous sampling capability is essential for measuring three-phase voltages and currents with accurate phase alignment. The wide input range and robust protection make it suitable for harsh industrial environments. When designing with the AD7609BSTZ, ensure proper decoupling of the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors. The REFIN/REFOUT pin can be driven by an external reference for improved accuracy. The digital interface supports both serial and parallel modes, selectable via the PAR/SER/BYTE pin. For best performance, use a low-jitter conversion clock and minimize digital noise coupling to the analog inputs.
AD7610BCPZ - 16-Bit 250kSPS PulSAR ADC | Analog Devices
The AD7610BCPZ is a 16-bit, 250 kSPS successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices, fabricated on the iCMOS high voltage process. It features a unipolar/bipolar programmable input range, allowing flexible configuration for various signal levels. The device operates from a 4.75V to 5.25V analog supply and is available in a 48-lead LFCSP-VQ (7x7) package, suitable for space-constrained industrial and instrumentation designs. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It offers a good balance of speed, resolution, and power consumption, making it ideal for applications requiring high accuracy at moderate sampling rates. The AD7610 belongs to the PulSAR family, known for its high performance and ease of use, and is part of the broader data acquisition signal chain, which includes analog front-end conditioning, ADC conversion, and digital processing. Key features of the AD7610BCPZ include a 16-bit resolution with no missing codes, a maximum sampling rate of 250 kSPS, and a programmable input range that supports both unipolar (0V to 5V) and bipolar (±5V, ±10V) inputs. The device also offers a high-speed serial interface (SPI) for easy connection to microcontrollers and DSPs, and it includes an internal reference buffer, reducing external component count. The iCMOS process ensures low power dissipation and high voltage handling capability. The AD7610 uses a charge redistribution architecture with a capacitive DAC, providing excellent linearity and low noise. It features a track-and-hold amplifier that captures the input signal accurately, and the conversion result is output via a 16-bit serial word. The device supports both hardware and software configuration of the input range and operating mode, offering flexibility in system design. The LFCSP package includes an exposed pad for improved thermal performance, and the device operates over the industrial temperature range of -40°C to +85°C. Typical applications for the AD7610BCPZ include industrial process control, data acquisition systems, medical instrumentation, and test and measurement equipment. Its high resolution and programmable input range make it suitable for precision measurement of sensor signals, such as temperature, pressure, and strain. The device is also used in vibration analysis and power quality monitoring, where accurate and fast conversion is essential. When designing with the AD7610BCPZ, it is important to provide a clean analog supply and proper decoupling to achieve specified performance. The reference input should be bypassed with a low-ESR capacitor, and the digital interface should be isolated from noisy digital circuitry to minimize coupling. The exposed pad should be soldered to a ground plane for optimal thermal and electrical performance.
AD7610BCPZ-RL - 16-Bit 500kSPS SAR ADC | Analog Devices
The AD7610BCPZ-RL is a 16-bit charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) fabricated on Analog Devices' iCMOS high voltage process. It offers a maximum sampling rate of 500 kSPS and features a programmable input range supporting both unipolar and bipolar operation. The device is available in a 48-lead LFCSP-VQ (7x7 mm) package and is designed for high-performance data acquisition systems. An ADC (analog-to-digital converter) is an electronic component that converts continuous analog signals into discrete digital values. The AD7610 is a SAR ADC, which uses a binary search algorithm to determine the digital output, offering a good balance of speed, resolution, and power consumption. SAR ADCs are widely used in industrial, medical, and instrumentation applications where high accuracy and moderate sampling rates are required. Key features of the AD7610 include a 16-bit resolution, a maximum throughput of 500 kSPS, and a programmable input range that can be configured via hardware pins or a serial configuration port. The device operates from a single 5V analog supply and a 2.3V to 5.25V digital interface supply, making it compatible with a wide range of digital hosts. It also features a high-speed parallel and serial interface, allowing flexible connection to microcontrollers and DSPs. The AD7610 uses a charge redistribution architecture with an internal reference buffer, providing excellent linearity and low noise performance. The device includes an internal clock and can be configured for various operating modes, including normal, impulse, and fast modes, to optimize power consumption versus throughput. The iCMOS process enables high voltage operation while maintaining low power dissipation. Typical applications for the AD7610 include industrial process control, medical instrumentation, data acquisition systems, and automated test equipment. Its high resolution and programmable input range make it suitable for precision measurement applications where signal conditioning is required. When designing with the AD7610, it is important to provide adequate decoupling on the analog and digital supplies and to ensure a clean reference voltage for optimal performance. The device's input range should be configured to match the signal amplitude to maximize dynamic range.
AD7610BSTZ - 16-Bit 250kSPS SAR ADC | Analog Devices
The AD7610BSTZ is a 16-bit, 250 kSPS successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices, fabricated on the iCMOS high voltage process. It features a unipolar/bipolar programmable input range, making it versatile for various data acquisition systems. The device is available in a 48-lead LQFP (7x7 mm) package and operates over the industrial temperature range. An ADC (analog-to-digital converter) is an electronic component that converts continuous analog signals into discrete digital numbers, enabling digital processing and storage. SAR ADCs use a binary search algorithm to approximate the input voltage, offering a good balance of speed, resolution, and power consumption. The AD7610 belongs to the PulSAR family, known for high accuracy and low power, and is part of the broader data converter hierarchy within mixed-signal ICs. Key features include a 16-bit resolution with no missing codes, a maximum throughput of 250 kSPS, and programmable input ranges of ±10 V, ±5 V, 0 to 10 V, and 0 to 5 V. It offers a parallel and serial interface, an internal reference, and a temperature range of -40°C to +85°C. The device also includes a busy indicator and a power-down mode for power-sensitive applications. The AD7610 uses a charge redistribution SAR architecture, which provides excellent linearity and low noise. The iCMOS process enables high voltage operation and reduces power consumption. The device includes an internal reference buffer and can operate with a 5 V analog supply and 2.3 V to 5.25 V digital supply, simplifying system design. Typical applications include industrial process control, data acquisition systems, medical instrumentation, and automated test equipment. The programmable input range allows direct interface to sensors with different output spans, reducing external signal conditioning. The high throughput and accuracy make it suitable for multi-channel multiplexed systems. When designing with the AD7610, ensure proper decoupling of the analog and digital supplies and a clean reference voltage. The input signal should be buffered to avoid charge injection errors. The parallel interface timing must be respected for reliable data transfer.
AD7610BSTZ-RL - 16-Bit 250kSPS PulSAR ADC | Analog Devices
The AD7610BSTZ-RL is a 16-bit, 250 kSPS successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices, fabricated on the iCMOS high voltage process. It features programmable input ranges of ±10 V, ±5 V, 10 V, and 5 V, selectable via pins or a serial SPI-compatible port. The device operates from a 5 V analog supply and a 2.3 V to 5.25 V digital interface supply, with a typical power dissipation of 115 mW at 250 kSPS. It is available in a 48-lead LQFP (7x7 mm) package, with the -RL suffix indicating tape and reel packaging. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It employs a comparator and a successive approximation register to iteratively narrow down the input voltage range, achieving high resolution and speed with low power consumption. SAR ADCs are widely used in data acquisition systems, industrial process control, and medical instrumentation where high accuracy and moderate sampling rates are required. Key features of the AD7610 include 16-bit resolution with no missing codes, a maximum throughput of 250 kSPS, and multiple programmable input ranges. The device offers a high-speed parallel interface and a serial SPI-compatible interface, providing flexibility in system integration. It also includes an internal reference buffer and supports external references, enabling precise voltage scaling. The iCMOS process ensures high voltage handling and low noise performance. The AD7610 architecture uses charge redistribution, which provides inherent sample-and-hold functionality and excellent linearity. The device includes a track-and-hold amplifier that captures the input signal, followed by a capacitive DAC that performs the successive approximation. This design achieves a typical signal-to-noise ratio (SNR) of 89 dB and a total harmonic distortion (THD) of -107 dB, making it suitable for high-precision measurement applications. Typical applications include industrial process control, data acquisition systems, medical instrumentation, and automated test equipment. The programmable input ranges allow direct interface with sensors and transducers without external scaling circuitry, simplifying design and reducing component count. The high input impedance and low power consumption make it ideal for battery-powered portable instruments. When designing with the AD7610, ensure that the analog input is properly buffered and that the reference voltage is stable and low-noise. The device requires a clean power supply with adequate decoupling to achieve optimal performance. The serial interface can be used to configure the input range and power-down modes, reducing power consumption in battery-operated systems.
AD7621ACPZRL - 16-Bit 3 MSPS PulSAR ADC | Analog Devices
The Analog Devices AD7621ACPZRL is a 16-bit, 3 MSPS, charge-redistribution successive approximation register (SAR) analog-to-digital converter that operates from a single 2.5 V power supply and is housed in a 48-lead LFCSP-VQ (7 mm x 7 mm) package with an exposed thermal pad. The integrated part combines a high-speed 16-bit sampling ADC, an internal conversion clock, and an internal reference buffer, supporting differential analog inputs with a ±VREF input range where VREF can be set up to 2.5 V. The device achieves a maximum INL of ±2 LSB (typical ±1 LSB), 89 dB SINAD and -101 dB THD at 100 kHz, and 16-bit resolution with no missing codes, all without pipeline delay thanks to its SAR architecture. An SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm and a charge-redistribution DAC to digitize a sampled analog input one bit per conversion clock. SAR ADCs sit at the next level of the converter hierarchy below delta-sigma and pipelined ADCs and are valued for their deterministic latency, single-shot accuracy, and lack of pipeline delay, which makes them well suited to multiplexed channel scanning, control loops, and event-driven sampling. The PulSAR family is Analog Devices' registered name for its precision, charge-redistribution SAR converter line. Key differentiating features include three selectable throughput modes (3 MSPS in wideband warp and warp modes, 2 MSPS in normal mode, and 1.25 MSPS in impulse mode), a 2.048 V internal reference, both serial and parallel (16- or 8-bit bus) digital interfaces, and a flexible input span driven by an external differential driver or AD8021/AD8138 driver. The warp mode and wideband warp mode further accelerate throughput by allowing faster acquisition at the cost of a tightened aperture window. Architecturally, the device pairs a high-bandwidth differential input track-and-hold with a precision charge-redistribution capacitive DAC and an on-chip conversion clock, which simplifies board-level timing. The single 2.5 V supply simplifies power-tree design, and the exposed-pad LFCSP-VQ package provides a low-thermal-resistance path to the PCB copper for heat spreading during continuous 3 MSPS operation. Typical application areas include medical imaging front-ends, industrial process control and data acquisition, instrumentation and automatic test equipment (ATE), and high-speed multichannel multiplexed systems. The 3 MSPS throughput and ±2 LSB INL are well aligned to imaging signal chains and to per-channel scanning modules behind a multiplexer. When designing in this ADC, allocate adequate ground and reference decoupling close to the pins, and lay out the analog input traces as a true differential pair terminated at the driver outputs. Use a low-jitter, low-phase-noise sampling clock to preserve aperture accuracy, and follow the AD7621 evaluation board layout for the LFCSP-VQ exposed pad to keep junction temperature within the rated -40 °C to +85 °C operating range. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
AD7621ASTZ - 16-Bit 3 MSPS SAR ADC | Analog Devices
The AD7621ASTZ is a 16-bit, 3 MSPS, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices. It operates from a single 2.5 V power supply and features a fully differential input, an internal conversion clock, and an internal reference buffer. The device is available in a 48-lead LQFP (7x7 mm) package, making it suitable for space-constrained industrial and medical applications. An ADC (analog-to-digital converter) is an electronic component that converts continuous analog signals into discrete digital values. The AD7621ASTZ belongs to the SAR ADC family, which uses a binary search algorithm to approximate the input voltage. SAR ADCs are known for their high speed, low power consumption, and excellent accuracy, making them ideal for applications requiring precise measurements at moderate sampling rates. The AD7621ASTZ is part of the PulSAR series, which is recognized for its high performance and reliability. Key features of the AD7621ASTZ include 16-bit resolution with 2 LSB integral nonlinearity (INL), a maximum sampling rate of 3 MSPS, and a fully differential input range of ±VREF. The device operates from a single 2.5 V supply, with an analog supply range of 2.37 V to 2.63 V, and features a serial and parallel interface for flexible data transfer. The internal conversion clock eliminates the need for an external clock, simplifying system design. The AD7621ASTZ uses a charge redistribution architecture that provides excellent linearity and low noise. The device includes an internal reference buffer, which reduces external component count and improves performance. The fully differential input allows for common-mode rejection, making it suitable for applications with noisy environments. The device also features a power-down mode to reduce power consumption when not converting. Typical applications for the AD7621ASTZ include medical imaging, high-speed data acquisition, industrial process control, and instrumentation. Its high speed and accuracy make it ideal for applications such as digital X-ray, ultrasound, and vibration analysis. The device's small package and low power consumption enable portable and battery-powered designs. When designing with the AD7621ASTZ, it is important to provide a clean, low-noise power supply and a stable reference voltage. The analog input should be driven with a low-impedance source to maintain accuracy. Proper decoupling of the power supply pins and careful PCB layout are essential to achieve the specified performance.
AD7621ASTZ-RL7 - 16-Bit 3MSPS PulSAR ADC | Analog Devices
The AD7621ASTZ-RL7 is a 16-bit, 3 MSPS, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices. It operates from a single 2.5 V power supply and features a fully differential input. The device is available in a 48-lead LQFP (7x7 mm) package, suitable for high-speed data acquisition systems. An ADC is an electronic component that converts an analog voltage or current into a digital number proportional to the magnitude of the signal. The AD7621 is a SAR-type ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are known for their high speed, low power consumption, and ease of use, making them ideal for applications requiring high-resolution sampling at moderate speeds. The AD7621 sits in the hierarchy of data converters, specifically within the family of high-speed, high-resolution ADCs used in industrial, medical, and communication systems. Key features of the AD7621 include a throughput of 3 MSPS in wideband warp and warp modes, 2 MSPS in normal mode, and 1.25 MSPS in impulse mode. It has an internal 2.048 V reference and supports a differential input range of ±VREF (with VREF up to 2.5 V). The device offers excellent linearity with 2 LSB INL (integral nonlinearity) and operates from a single 2.5 V supply, minimizing power consumption. The AD7621 also includes an internal conversion clock and a high-speed 16-bit sampling ADC, simplifying system design. Technically, the AD7621 uses a charge redistribution architecture that samples the analog input onto a capacitor array. The internal reference and conversion clock reduce external component requirements. The device provides both parallel and serial data interfaces, offering flexibility in system integration. The fully differential input provides common-mode rejection, improving noise performance in noisy environments. Typical applications for the AD7621 include high-speed data acquisition, medical imaging, instrumentation, and communication systems. Its high throughput and resolution make it suitable for applications such as digital oscilloscopes, spectrum analyzers, and industrial process control. The device's low power consumption and small package enable compact, portable designs. When designing with the AD7621, ensure proper decoupling of the power supply and reference pins. Use a low-noise reference and adequate analog input drive circuitry to achieve specified performance. The differential input should be driven with a suitable amplifier to maintain signal integrity.
AD7621BCPZ - 16-Bit 3 MSPS PulSAR ADC | Analog Devices
The AD7621BCPZ is a 16-bit, 3 MSPS, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices. It operates from a single 2.5 V power supply and features a fully differential input, an internal conversion clock, and an internal 2.048 V reference with a typical drift of ±7 ppm/°C. The device is available in a 48-lead LFCSP-VQ (7x7 mm) package, offering a compact solution for high-speed data acquisition systems. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It is known for its high speed, low power consumption, and excellent accuracy, making it ideal for applications such as medical imaging, industrial process control, and instrumentation. The AD7621 belongs to the PulSAR family of ADCs, which are recognized for their superior linearity and low noise performance. Key features of the AD7621 include a 16-bit resolution with no missing codes, a maximum throughput of 3 MSPS, and a typical power dissipation of 65 mW. The device supports both parallel and serial output interfaces, providing flexibility in system design. The internal reference eliminates the need for an external reference, simplifying the design and reducing component count. The fully differential input allows for high common-mode rejection, improving noise immunity in noisy environments. The AD7621 is fabricated using Analog Devices' iCMOS high-voltage process, which enables high performance and reliability. The device includes an internal conversion clock, reducing the need for external timing components. The ADC operates over a temperature range of -40°C to +85°C, making it suitable for industrial applications. The LFCSP package provides excellent thermal performance and is RoHS compliant. Typical applications for the AD7621 include high-speed data acquisition systems, medical imaging equipment, industrial process control, and instrumentation. Its high throughput and accuracy make it ideal for applications requiring precise and fast analog-to-digital conversion. The device is also suitable for portable and battery-powered applications due to its low power consumption. When designing with the AD7621, it is important to provide a clean, low-noise power supply and proper decoupling to achieve optimal performance. The reference input should be bypassed with a capacitor to reduce noise. The digital interface should be designed to minimize crosstalk and ensure reliable data transfer.
AD7621BCPZ-RL7 - 16-Bit 3MSPS PulSAR ADC | Analog Devices
The AD7621BCPZ-RL7 is a 16-bit, 3 MSPS, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices. It operates from a single 2.5 V supply and typically dissipates only 65 mW, making it ideal for high-speed, low-power data acquisition systems. The device features a 2.048 V internal reference with a typical drift of ±7 ppm/°C, ensuring stable performance over temperature. It is available in a 48-lead LFCSP package (7x7 mm) and is specified over the industrial temperature range of -40°C to +85°C. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It is known for its high speed, low power consumption, and excellent accuracy, making it suitable for applications such as medical imaging, industrial process control, and high-speed data acquisition. The AD7621 belongs to the PulSAR family of ADCs, which are renowned for their superior linearity and no missing codes. Key features of the AD7621 include a maximum throughput of 3 MSPS, no missing 16-bit codes, and an internal reference with low drift. The device also offers a flexible serial interface that is compatible with SPI, QSPI, MICROWIRE, and DSPs, simplifying integration into digital systems. The ADC operates from a single 2.5 V supply, reducing power supply complexity, and features a power-down mode for energy savings in battery-powered applications. The AD7621 uses a charge redistribution architecture with a capacitive DAC, providing excellent linearity and low noise. The internal reference buffer ensures accurate conversion results, while the device's high input bandwidth allows it to digitize high-frequency signals without significant aliasing. The ADC also includes a track-and-hold circuit that maintains signal integrity during conversion. Typical applications for the AD7621 include high-speed data acquisition, medical imaging (such as ultrasound and MRI), industrial process control, and instrumentation. Its combination of speed, accuracy, and low power makes it suitable for portable and battery-operated devices where power efficiency is critical. When designing with the AD7621, it is important to provide a clean, low-noise power supply and proper decoupling to achieve optimal performance. The reference voltage should be bypassed with a capacitor to minimize noise, and the analog input should be driven with a low-impedance source to avoid settling time issues.
AD7623ACPZRL - 16-Bit, 1.33 MSPS PulSAR ADC | Analog Devices
The Analog Devices AD7623ACPZRL is a 16-bit, 1.33 MSPS, charge-redistribution SAR (successive-approximation-register) analog-to-digital converter housed in a 48-lead LFCSP-VQ (7x7 mm) package with exposed pad. It operates from a single 2.5 V power supply and provides a fully differential analog input, integrating a high-performance front-end that combines low noise and wide input bandwidth for demanding precision acquisition. A SAR ADC is a successive-approximation-register analog-to-digital converter; it belongs to the broader class of Nyquist-rate data converters that sample an analog signal at a defined clock rate and resolve each sample to a binary code through a binary-search charge-redistribution DAC. The PulSAR architecture is a specific ADI family of SAR converters known for low-noise, low-power, high-precision operation, sitting within the hierarchy ADC -> data converter -> mixed-signal IC -> semiconductor. SAR ADCs are preferred over delta-sigma for multi-channel multiplexed and event-driven systems because they provide deterministic latency and no pipeline delay. Key features include a true 16-bit resolution with no missing codes, 1.33 MSPS throughput, low power consumption suitable for battery-powered industrial instruments, internal conversion clock, and a high-speed parallel or serial interface option. The fully differential input stage supports bipolar input ranges when biased around a common-mode voltage, and the wide input bandwidth preserves accuracy on fast transient signals. Typical applications include industrial process control, medical instrumentation, precision data acquisition systems, spectrum analysis, and portable battery-powered measurement front-ends. The wide input bandwidth and deterministic latency also suit multiplexed multi-channel systems where channels must be sampled in known phase relationships. When designing with the AD7623ACPZRL, select a low-noise, fast-settling driver amplifier such as the AD8021, as recommended in the AD7623 datasheet. Pay attention to PCB layout for the exposed pad - it must be soldered to a continuous ground plane to meet thermal and electrical performance, and decoupling should use ceramic capacitors placed as close as possible to the supply pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster path from component selection to validated PCB implementation.
AD7623ASTZRL - 16-Bit 1.33 MSPS PulSAR ADC | Analog Devices
The Analog Devices AD7623ASTZRL is a 16-bit, 1.33 MSPS, charge redistribution SAR (successive approximation register) analog-to-digital converter housed in a 48-pin LQFP (Low-Profile Quad Flat Package) supplied on tape and reel. It operates from a single 2.5 V power supply, features a fully differential analog input, and integrates a 2.048 V internal reference with ±7 ppm/°C typical drift, removing the need for an external reference in most designs. The device supports both parallel and serial digital interfaces, allowing flexible host connectivity to DSPs, FPGAs, and microcontrollers. A SAR ADC is a type of analog-to-digital converter that uses a charge redistribution capacitive DAC combined with a comparator and successive-approximation logic to digitize an analog input in N clock cycles, where N equals the converter's resolution. SAR ADCs sit in the broader taxonomy of data converters (ADC -> Nyquist-rate ADC -> SAR ADC -> mixed-signal IC). Unlike delta-sigma ADCs, SAR converters offer single-shot latency, deterministic throughput, and no pipeline delay, which makes them ideal for multiplexing multi-channel systems and control loops where latency must be predictable. Key performance highlights include 1.33 MSPS throughput, 16-bit resolution with no missing codes, an excellent linearity profile, and a wide common-mode input range supported by the fully differential architecture. The AD8021 op amp is recommended by Analog Devices as the input driver because it settles cleanly at 16-bit levels at high gain. Combined with the 2.048 V internal reference, the AD7623 offers a high-accuracy single-supply solution for industrial instrumentation, medical imaging front-ends, and spectrum analysis systems. Typical applications include industrial process control and data acquisition, medical imaging (CT, ultrasound, MRI front-ends), spectrum analysis and vibration analysis, multi-channel multiplexed data acquisition systems, and precision instrumentation where deterministic latency matters. When designing with the AD7623, pay close attention to the input driver selection - the op amp must settle at 16-bit resolution (0.0015%) within the ADC acquisition time, not just at 0.1% or 0.01% which is more commonly published. Use a low-inductance ground plane and decouple the 2.5 V supply close to the pins. The LQFP-48 package has a typical θJA around 50 C/W; thermal rise is modest given the low supply current. This page synthesizes distributor pricing, drop-in alternatives within the PulSAR family, and design notes drawn from the Analog Devices AD7623 datasheet - content not consolidated on any single distributor page.
AD7634BCPZRL - 18-Bit 670kSPS Differential PulSAR ADC | Analog Devices
The Analog Devices AD7634BCPZRL is an 18-bit, 670 kSPS differential programmable input PulSAR successive approximation register (SAR) analog-to-digital converter housed in a 48-lead LFCSP-VQ (7x7 mm) package with exposed pad. It supports software- or pin-selectable true bipolar input ranges of ±10 V, 0 to 20 V, 0 to ±20 V, and ±40 V (10 V p-p through 40 V p-p) and offers both parallel and serial (SPI-compatible) data interfaces, allowing direct connection to DSPs, FPGAs, and microcontrollers. An SAR ADC is a successive-approximation converter that uses a binary-search algorithm and a precision DAC to digitize an input signal in N conversion cycles. PulSAR devices from Analog Devices are precision SAR ADCs that combine low noise, low power, and high throughput for industrial instrumentation. The AD7634 belongs to the precision data-converter family within Analog Devices' signal-chain portfolio, sharing heritage with the AD7621, AD7631, and AD7651 series, and targeting applications where bipolar signals and high dynamic range must be captured without front-end signal conditioning. Key features include 670 kSPS throughput, true bipolar differential inputs with software- or pin-programmable ranges, simultaneous sampling of two channels via the differential architecture, internal reference, internal clock, and pin-selectable serial or parallel digital output. The LFCSP-VQ-48 (7x7) package with exposed thermal pad provides low thermal resistance (junction-to-case) suitable for industrial temperature operation and reduces PCB footprint versus larger SOIC or LQFP alternatives. From an architecture standpoint, the device integrates a high-bandwidth differential input driver, a 32-tap digital filter, on-chip calibration logic, and a 2.5 V internal reference (with option to overdrive). The throughput-versus-INL curve and AC performance (SNR, SINAD) compete favorably with delta-sigma converters at Nyquist-rate bandwidths, while avoiding the latency penalty typical of sigma-delta devices. Typical applications include industrial process control (PLC analog input modules), power-line monitoring and protection relays, medical instrumentation (patient monitoring and diagnostic imaging front-ends), data acquisition systems for test and measurement, and multi-axis motor control feedback. According to Analog Devices product page, the 1ku starting list price is $48.81 (as of 2026-10-12). When designing with the AD7634BCPZRL, allocate adequate PCB copper area under the exposed pad to keep junction temperature within the -40C to +85C industrial range. Use the internal reference only when absolute accuracy below ±10 LSB is acceptable; otherwise overdrive REF with a low-noise external ADR435-class reference. Drive the analog inputs through low-impedance op-amp driver circuits (e.g., AD8021) to settle within the 670 kSPS acquisition window. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found on the manufacturer datasheet alone, providing engineering decision context for ADC selection in precision industrial designs.