ADS7851IRTER

The ADS7251 and ADS7851 belong to a pin-compatible, dual-channel, high-speed, simultaneous-sampling analog-to-digital converter (ADC) product family. They support fully differential analog inputs and feature two separate internal voltage references. The ADS7251 offers 12-bit resolution and a sampling rate of up to 2 MSPS. The ADS7851 offers 14-bit resolution and a sampling rate of up to 1.5 MSPS. These devices support a wide digital supply voltage range, enabling easy communication with a variety of digital host controllers through 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 (3mm×3mm) package.

Applications

• Motor control: direct interface with SinCos encoders
• Optical network interconnect: EDFA gain control loops
• Protection relays
• Power quality measurement
• Three-phase power control
• Programmable logic controllers
• Industrial automation

Key features

• Pin-compatible 12- and 14-bit family
• Simultaneous dual-channel sampling
• Fully differential analog inputs
• Separate internal reference (one per ADC)
• Up to 2MSPS with ADS7251 (12-bit), up to 1.5MSPS with ADS7851 (14-bit)
• ADS7251: SNR: 73dB, INL: ±1LSB
• ADS7851: SNR: 83.5dB, INL: ±2LSB
• Fully rated operation over extended industrial temperature range: -40°C to +125°C
• Compact package: WQFN-16 (3mm x 3mm)