AD7951 14-Bit, 1 MSPS, Unipolar/Bipolar Programmable Input PulSAR® ADC

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

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 NVST 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

Features and Benefits
  • Multiple pins/software programmable input ranges:
    5 V, 10 V, ±5 V, ±10 V
  • Pins or serial SPI® compatible input ranges/mode selection
  • Throughput
    1 MSPS (warp mode)
    800 kSPS (normal mode)
    670 kSPS (impulse mode)
  • 14-bit resolution with no missing codes
  • INL: ±0.3 LSB typ, ±1 LSB max (±61 ppm of FSR)
  • SNR: 85 dB @ 2 kHz
  • iCMOS® process technology
  • See data sheet for additional features
Analog to Digital Converters
Data Sheets
Documentnote
AD7951: 14-Bit, 1 MSPS, Unipolar/Bipolar Programmable Input PulSAR ADC Data Sheet (Rev. B)PDF 3620 kB
Application Notes
Documentnote
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)PDF 299 kB
User Guides
Documentnote
EVAL-AD76XXCBZ: Evaluation Board For AD761x,762x/AD763x AD764x/AD765x/AD766x/AD767x/AD795x (Rev. PrW)PDF 2242 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7951BCPZ Last Time Buy48 ld LFCSP 7x7mm (5.1EP)OTH 260-40 to 85C12.3111.12Y
AD7951BCPZRL Last Time Buy48 ld LFCSP 7x7mm (5.1EP)REEL 2500-40 to 85C011.12Y
AD7951BSTZ Production48 ld LQFPOTH 250-40 to 85C12.3111.12Y
AD7951BSTZRL Last Time Buy48 ld LQFPREEL 2000-40 to 85C011.12Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-CED1ZEvaluation Controller Board249Y
Reference Materials
AD7951: 14-Bit, 1 MSPS, Unipolar/Bipolar Programmable Input PulSAR ADC Data Sheet (Rev. B) ad7951
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0) ad7476
AN-931: 了解PulSAR ADC支持电路 (Rev. 0) ad7476
EVAL-AD76XXCBZ: Evaluation Board For AD761x,762x/AD763x AD764x/AD765x/AD766x/AD767x/AD795x (Rev. PrW) ad7951
MS-2210:高速ADC的电源设计 ad9861