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AD7686 Datasheet

AD7686 Datasheet

500 kSPS 16-BIT PulSAR® A/D Converter in MSOP/QFN
Part No.: AD7686
Page: 28 Pages
Size: 481 KB
Manufacturer: Analog Devices, Inc.
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Views: 1
Update Time: 2025-01-06 17:50:10
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AD7686 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
AD7686BCPZRL Reel 5000 C02 1 10 -40°C ~ 85°C 10-Lead LFCSP_WD  
AD7686BCPZRL7 Reel 1500 C02 1 10 -40°C ~ 85°C 10-Lead LFCSP_WD  
AD7686BRMZ Tube 50 C3N 1 10 -40°C ~ 85°C 10-Lead MSOP  
AD7686BRMZRL7 Reel 1000 C3N 1 10 -40°C ~ 85°C 10-Lead MSOP  
AD7686CCPZRL Reel 5000 C2G 1 10 -40°C ~ 85°C 10-Lead LFCSP_WD  
AD7686CCPZRL7 Reel 1500 C2G 1 10 -40°C ~ 85°C 10-Lead LFCSP_WD  
AD7686CRMZ Tube 50 C3P 1 10 -40°C ~ 85°C 10-Lead MSOP  
AD7686CRMZRL7 Reel 1000 C3P 1 10 -40°C ~ 85°C 10-Lead MSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

AD7686 Datasheet(PDF)

AD7686 Datasheet(Picture)

AD7686 Features

  • 16-bit resolution with no missing codes
  • Throughput: 500 kSPS
  • INL: ±0.6 LSB typical, ±2 LSB maximum (±0.003% of FSR)
  • SINAD: 92.5 dB @ 20 kHz
  • THD: −110 dB @ 20 kHz
  • Pseudo differential analog input range 0 V to VREF with VREF up to VDD
  • No pipeline delay
  • Single-supply 5 V operation with 
    1.8 V/2.5 V/3 V/5 V logic interface
  • Serial interface SPI®-/QSPI-/MICROWIRE-/DSP-compatible
  • Daisy-chain multiple ADCs and busy indicator
  • Power dissipation 
    3.75 μW @ 5 V/100 SPS 
    3.75 mW @ 5 V/100 kSPS
  • Standby current: 1 nA

AD7686 Applications

  • Battery-powered equipment
  • Data acquisitions
  • Instrumentation
  • Medical instruments
  • Process controls

AD7686 Description

The AD7686 is a 16-bit, charge redistribution, successive approximation, analog-to-digital converter (ADC) that operates from a single 5 V power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. The part also contains a low noise, wide bandwidth, short aperture delay track-and-hold circuit. On the CNV rising edge, the AD7686 samples an analog input IN+ between 0 V to REF with respect to a ground sense IN−. The reference voltage, REF, is applied externally and can be set up to the supply voltage.

Power dissipation scales linearly with throughput.

The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus or provides an optional busy indicator. This device is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO.

The AD7686 is housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from −40°C to +85°C.

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