SAR ADC, Dual, 1.5 MSPS, 14 Bit, Simultaneous Sampling - ADS7851

ADS7851 (ACTIVE)

SAR ADC, Dual, 1.5 MSPS, 14 Bit, Simultaneous Sampling

 

Description

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.

Features

  • 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
  • Fully-Specified Over the Extended Industrial Temperature Range: –40°C to +125°C
  • Small Footprint: WQFN-16 (3 mm × 3 mm)

View more

Parametrics Compare all products in Precision ADC (<=10MSPS)

 
Resolution (Bits)
Sample Rate (max) (SPS)
# Input Channels
Input Type
Power Consumption (Typ) (mW)
Input Range (Min) (V)
Input Range (Max) (V)
Interface
Integrated Features
Analog Voltage AVDD (Min) (V)
Analog Voltage AVDD (Max) (V)
Architecture
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
THD (Typ) (dB)
INL (Max) (+/-LSB)
SNR (dB)
Reference Mode
ADS7851
14   
1.5 MSPS   
2   
Differential   
55   
0   
5.25   
Serial SPI   
N/A   
4.75   
5.25   
SAR   
-40 to 125   
16WQFN   
7.00 | 1ku   
-90   
2   
83.5   
Int   

Related end equipment

  • Motor Control: Direct Interface to SinCos Encoders
  • OpticalNetworking: EDFA Gain Control Loop
  • Protection Relays
  • Power Quality Measurement
  • Three-Phase Power Controls
  • Programmable Logic Controllers
  • Industrial Automation

TINA is a trademark of Texas Instruments Inc.
All other trademarks are the property of their respective owners.