ADS7851
- 12- and 14-Bit Pin-Compatible Family
- Simultaneous Sampling of Two Channels
- Supports Fully-Differential Analog Inputs
- Independent Internal Reference (per ADC)
- High Speed:
- Up to 2 MSPS with the ADS7251 (12-Bit)
- Up to 1.5 MSPS with the ADS7851 (14-Bit)
- Excellent Performance:
- ADS7251:
- SNR: 73 dB
- INL: ±1 LSB
- ADS7851:
- SNR: 83.5 dB
- INL: ±2 LSB
- ADS7251:
- Fully-Specified Over the Extended Industrial Temperature Range: –40°C to +125°C
- Small Footprint: WQFN-16 (3 mm × 3 mm)
The ADS7251 and ADS7851 belong to a family of pin-compatible, dual, high-speed, simultaneous-sampling, analog-to-digital converters (ADCs) that support fully-differential analog inputs and feature two independent internal voltage references. The ADS7251 offers 12-bit resolution and up to 2-MSPS sampling speed. The ADS7851 offers 14-bit resolution and up to 1.5-MSPS sampling speed.
The devices support a wide digital supply voltage range, allowing easy communication with a variety of digital host controllers using a simple, serial interface. Both devices are fully specified over the extended industrial temperature range (–40°C to +125°C) and are available in a pin-compatible, space-saving, WQFN-16 (3-mm × 3-mm) package.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS7x51 12-Bit, 2-MSPS and 14-Bit, 1.5-MSPS, Dual, Differential Input, Simultaneous-Sampling, Analog-to-Digital Converters with Internal Reference datasheet (Rev. A) | PDF | HTML | 09 Apr 2014 |
Application brief | Precision ADCs in Servo Drives | PDF | HTML | 22 Aug 2024 | |
E-book | Tips and tricks for designing with voltage references (Rev. A) | 07 May 2021 | ||
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 | ||
EVM User's guide | ADS7851EVM-PDK User's Guide (Rev. A) | 31 Mar 2014 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
WQFN (RTE) | 16 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
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Support & training
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