AD7687
PRODUCTION16-Bit, 1.5 LSB INL, 250 kSPS PulSAR™ Differential ADC in MSOP/QFN
- Part Models
- 3
- 1ku List Price
- Starting From $14.01
Part Details
- 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.
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.
APPLICATIONS
- Battery-powered equipment
- Data acquisitions
- Instrumentation
- Medical instruments
- Process controls
Documentation
Data Sheet 1
User Guide 2
Application Note 1
Technical Articles 1
Product Highlight 2
Tested Product Combinations 1
Tutorial 1
Product Highlight 2
Circuit Note 1
Device Drivers 1
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7687BCPZRL7 | 10-Lead LFCSP (3mm x 3mm) | ||
| AD7687BRMZ | 10-Lead MSOP | ||
| AD7687BRMZRL7 | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
|
May 20, 2024 - 23_0143 Qualification of an Alternate Wafer Fab Site for 0.5um TSMC CMOS Process |
||
| AD7687BCPZRL7 | PRODUCTION | |
| AD7687BRMZ | PRODUCTION | |
| AD7687BRMZRL7 | PRODUCTION | |
|
Jul 5, 2022 - 21_0271 Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages |
||
| AD7687BCPZRL7 | PRODUCTION | |
|
Oct 18, 2016 - 16_0036 Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select LFCSP Products |
||
| AD7687BCPZRL7 | PRODUCTION | |
|
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products |
||
| AD7687BRMZ | PRODUCTION | |
| AD7687BRMZRL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
FPGA/HDL 2
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Fully Differential Amplifiers 1 | ||
| AD8476 | PRODUCTION | Low Power, Unity Gain Fully Differential Amplifier & ADC Driver |
| Low Input Bias Current Op Amps (≤100 pA) 2 | ||
| ADA4627-1 | PRODUCTION | 36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp |
| ADA4610-2 | RECOMMENDED FOR NEW DESIGNS | Low Noise, Precision, Rail-to-Rail Output, JFET Dual Op Amp |
| Low Noise Op Amps (≤ 10nV/√Hz) 1 | ||
| ADA4897-1 | RECOMMENDED FOR NEW DESIGNS | 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers |
| Low Power Op Amps (≤ 1mA/amp) 1 | ||
| AD8031 | PRODUCTION | 2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Single Amplifier |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 3 | ||
| AD8605 | PRODUCTION | Precision, Low Noise, CMOS, RRIO Op Amp (single) |
| ADA4841-1 | PRODUCTION | Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
| AD8021 | PRODUCTION | Low Noise, High Speed Amplifier for 16-Bit Systems |
| Series Voltage References 2 | ||
| ADR435 | PRODUCTION | Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
| ADR391 | PRODUCTION | 2.5V Micropower, Low Noise Precision Voltage Reference with Shutdown |
| Single-Ended to Differential Amplifiers 2 | ||
| ADA4940-1 | PRODUCTION | Ultralow Power, Low Distortion ADC Driver |
| ADA4941-1 | PRODUCTION | Single-Supply, Differential 18-Bit ADC Driver |
| Standard Digital Isolators 4 | ||
| ADUM1401 | PRODUCTION | Quad-Channel Digital Isolator (3/1 Channel Directionality) |
| ADUM3481 | PRODUCTION | Small, 3.75 kV RMS Quad Digital Isolators (3/1 Channel Directionality) |
| ADUM4401 | PRODUCTION |
5 kV RMS Quad-Channel Digital Isolators |
| ADUM3401 | PRODUCTION | Quad-Channel, Digital Isolator, Enhanced System-Level ESD Reliability |
Tools & Simulations
Precision ADC Driver Tool
The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input
Open ToolAD7685 IBIS Models 1
Evaluation Kits
AD7687 Evaluation Kit
Resources
Software
16-Bit, 250 kSPS PulSAR® ADC PMOD Evaluation Board
Resources
Software
Reference Designs
High Impedance, High CMR, ±10 V Analog Front End Signal Conditioner for Industrial Process Control and Automation