ADS7861 Dual, 500kHz, 12-Bit, 2+2 Ch, Simultaneous Sampling Analog-To-Digital Converter | TI.com

ADS7861
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Dual, 500kHz, 12-Bit, 2+2 Ch, Simultaneous Sampling Analog-To-Digital Converter

 

Description

The ADS7861 is a dual, 12-bit, 500kHz, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.

The ADS7861 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 12-bit word. The ADS7861 is offered in both an SSOP-24 and a QFN-32 package and is fully specified over the -40°C to +125°C operating range.

Features

  • 4 INPUT CHANNELS
  • FULLY DIFFERENTIAL INPUTS
  • 2µs TOTAL THROUGHPUT PER CHANNEL
  • NO MISSING CODES
  • 1MHz EFFECTIVE SAMPLING RATE
  • LOW POWER: 40mW
  • SSI SERIAL INTERFACE
  • OPERATING TEMPERATURE RANGE: 40°C to +125°C
  • APPLICATIONS
    • MOTOR CONTROL
    • MULTI-AXIS POSITIONING SYSTEMS
    • 3-PHASE POWER CONTROL

All trademarks are the property of their respective owners.

Parametrics

Compare all products in Precision ADCs (<=10MSPS) Email Download to Excel
Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) THD (Typ) (dB) Rating
ADS7861 Order now 12     500     4     Serial     -40 to 125     SSOP | 24
VQFN | 32    
5.02 | 1ku     25     24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
SAR     Differential     Simultaneous Sampling     Ext
Int    
    5.25     0     4.75     5.25     4.75     5.25     1     -76     Catalog