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AD7687 Datasheet

AD7687 Datasheet

16-Bit, 1.5 LSB INL, 250 kSPS PulSAR Differential ADC in MSOP/QFN
Part No.: AD7687
Page: 26 Pages
Size: 531 KB
Manufacturer: Analog Devices, Inc.
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Views: 1
Update Time: 2025-01-06 17:47:48
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AD7687 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
AD7687BRMZ Tube 50 C3Q 1 10 -40°C ~ 85°C 10-Lead MSOP  
AD7687BRMZRL7 Reel 1000 C3Q 1 10 -40°C ~ 85°C 10-Lead MSOP  
AD7687BCPZ-R2 Reel 250 C03 1 10 -40°C ~ 85°C 10-Lead LFCSP_WD  
AD7687BCPZRL7 Reel 1500 C03 1 10 -40°C ~ 85°C 10-Lead LFCSP_WD  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

AD7687 Datasheet(PDF)

AD7687 Datasheet(Picture)

AD7687 Features

  • 16-bit resolution with no missing codes
  • Throughput: 250 kSPS
  • INL: ±0.4 LSB typ, ±1.5 LSB max (±23 ppm of FSR)
  • Dynamic range: 96.5 dB
  • SNR: 95.5 dB at 20 kHz
  • THD: −118 dB at 20 kHz
  • True differential analog input range:
    ±VREF
    0 V to VREF with VREF up to VDD on both inputs
  • Single-supply 2.3 V to 5.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
  • No pipeline delay
  • Refer to data sheet for additional features.

AD7687 Applications

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

AD7687 Description

The AD76871 is a 16-bit, charge redistribution, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.3 V to 5.5 V. 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 device also contains a low noise, wide bandwidth, short aperture delay track-and-hold circuit. On the CNV rising edge, the AD7687 the samples the voltage difference between IN+ and IN− pins, which can range from −VREF to +VREF. The reference voltage, VREF, is applied externally and can be set up to the supply voltage.

The power consumption of the device scales linearly with throughput.

The SPI-compatible serial interface also features the ability to daisy-chain several ADCs on a single 3-wire bus and provides an optional BUSY indicator by means of the SDI pin. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using the separate supply VIO.

The AD7687 comes in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +85°C.

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