AD7895BRZ-10

Overview

The AD7895BRZ-10 is a 12-bit successive approximation analog-to-digital converter (ADC) housed in an 8-pin SOIC package. It operates from a single +5 V supply and features a high-speed serial interface with a conversion time of 3.8 μs. The device supports a bipolar input voltage range of ±10 V and includes an on-chip track/hold amplifier. Key electrical specifications include a maximum power dissipation of 20 mW, a signal-to-noise ratio of 70 dB, and a differential nonlinearity of ±1 LSB. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated signal scaling allows direct handling of ±10 V analog inputs while operating from a single +5 V supply.
• On-chip track/hold amplifier ensures accurate digitization of full-scale sine waves at throughput rates up to 192 kHz.
• High-speed serial interface utilizes only two wires for data transmission, simplifying connections to microcontrollers and DSP processors.

Applications

• Battery-powered or portable instrumentation systems requiring low power consumption.
• Industrial process control loops utilizing standard ±10 V sensor signals.
• Data acquisition modules interfacing with digital signal processors via serial protocols.

Procurement Notes

Verify the specific suffix 'BRZ' corresponds to the required RoHS-compliant SOIC-8 packaging variant. Confirm that the '-10' designation matches the necessary ±10 V input range specification for the target application circuit design.

Selection Notes

Select this model specifically when a ±10 V bipolar input range is required. Alternative variants exist for different voltage ranges; ensure the part number suffix aligns with the system's analog input requirements before integration.

Part Context

This component belongs to the AD7895 family of fast 12-bit ADCs. The 'B' suffix indicates the commercial temperature grade (-40°C to +85°C), while 'RZ' denotes the tape-and-reel SOIC-8 package option. The '-10' suffix specifies the internal signal scaling for ±10 V inputs.

Replacement Considerations

Public confirmed substitute part numbers: AD7895ARZ-10, AD7895ANZ-10.

FAQ

What is the output coding format for the AD7895BRZ-10?

The AD7895BRZ-10 uses 2's complement binary output coding.

How does the automatic power-down mode function?

In Mode 2 operation, the device automatically enters power-down mode after conversion completes if CONVST remains low, reducing current consumption until the next conversion cycle begins.

What is the maximum serial clock frequency supported?

The maximum serial clock frequency (SCLK) is 15 MHz.