AD7951

PRODUCTION

14-Bit, 1 MSPS, Unipolar/Bipolar Programmable Input PulSAR® ADC

Analog Devices AD7951 Product Info

10 February 2026 7

Features

Multiple pins/software programmable input ranges:
5 V, 10 V, ±5 V, ±10 V
Pins or serial SPI^® compatible input ranges/mode selection
iCMOS^® process technology

14-bit resolution with no missing codes
INL: ±0.3 LSB typ, ±1 LSB max (±61 ppm of FSR)
SNR: 85 dB @ 2 kHz
See data sheet for additional features

Part details & applications

The AD7951 is a 14-bit, charge redistribution, successive approximation register (SAR) architecture analog-to-digital converter (ADC) fabricated on Analog Devices, Inc.'s iCMOS high voltage process. The device is configured through hardware or via a dedicated write only serial configuration port for input range and operating mode. The AD7951 contains a high speed 14-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and both serial and parallel system interface ports. A falling edge on CNVST samples the analog input on IN+ with respect to a ground sense, IN−. The AD7951 features four different analog input ranges and three different sampling modes: warp mode for the fastest throughput, normal mode for the fastest asynchronous throughput, and impulse mode where power is scaled with throughput. Operation is specified from −40°C to +85°C.

APPLICATIONS

Process control
Medical instruments
High speed data acquisition
Digital signal processing
Instrumentation
Spectrum analysis
ATE

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