Description

The AD7890BR-10 is an electronic component that falls under the category of ADCs/DACs. It is a data acquisition system that consists of an input multiplexer, a high-speed 12-bit ADC, a track/hold amplifier, and a serial interface. It also includes a +2.5 V reference and operates on a single +5 V supply. It has a conversion time of 5.9 μs and accepts an analog input range of ±10 V (AD7890-10), 0 V to +4.096 V (AD7890-4), and 0 V to +2.5 V (AD7890-2).

Specifications and features

• Fast 12-Bit ADC with 5.9 μs Conversion Time
• Eight Single-Ended Analog Input Channels
• Selection of Input Ranges: ±10 V for AD7890-10, 0 V to +4.096 V for AD7890-4, and 0 V to +2.5 V for AD7890-2
• Allows Separate Access to Multiplexer and ADC
• On-Chip Track/Hold Amplifier
• On-Chip Reference
• High-Speed, Flexible, Serial Interface
• Single-Supply, Low-Power Operation (50 mW max)
• Power-Down Mode (75 μW typ)

Application Scenarios

The AD7890BR-10 can be used in a variety of applications which require high-speed data acquisition, such as medical instruments, test and measurement equipment, and industrial automation systems.

Comparison

Advantages:

• Eight single-ended analog input channels
• Allows separate access to multiplexer and ADC
• On-chip track/hold amplifier and reference
• High-speed, flexible, serial interface
• Single-supply, low-power operation with power-down mode

Disadvantages:

• Limited to certain input ranges, i.e., ±10 V, 0 V to +4.096 V, and 0 V to +2.5 V