ADS7861数据手册集成电路（IC）的模数转换器（ADC）规格书PDF

描述 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.

特性 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