Description

AD7720BRUZ is an Analog to Digital Converter (ADC) and Digital to Analog Converter (DAC) device, belonging to the product category of ADCs/DACs. It is a 7th order sigma-delta modulator that converts the analog input signal into a high speed 1-bit data stream. The part operates from a +5V supply and accepts a differential input range of 0 V to +2.5 V or ±1.25 V centered about a common mode bias. The analog input is continuously sampled by the analog modulator, eliminating the need for external sample and hold circuitry. The input information is contained in the output stream as a density of ones. The original information can be reconstructed with an appropriate digital filter.

Specifications and features

• Master Clock Frequency: 12.5 MHz
• Input Range: 0 V to +2.5 V or ±1.25 V
• Output: Single Bit Stream
• Dynamic Range: 90 dB
• Power Supplies: AVDD, DVDD: +5 V ± 5%
• Voltage Reference: On-Chip 2.5 V
• Package Type: 28-Lead TSSOP

Application Scenarios

This device is suitable for applications needing high speed conversions within a narrower input range. It is appropriate for several analog-to-digital applications such as signal processing, data acquisition systems, and precision measurement instruments.

Comparison

• High Speed Conversions
• On-chip voltage reference
• Eliminates the need of external sample and hold circuitry
• Appropriate for several applications requiring high precision

• Not suitable for applications requiring high resolution
• Only a 1-bit output stream