AD7893BNZ-10

Overview

The AD7893BNZ-10 is a 12-bit successive approximation analog-to-digital converter (ADC) fabricated in LC2MOS technology. It operates from a single +5 V supply, consuming typically 25 mW. The device features an on-chip track/hold amplifier and a high-speed serial interface requiring only two wires. It accepts a bipolar analog input range of ±10 V with a reference voltage of +2.5 V. Key electrical parameters include a maximum conversion time of 6 μs, a throughput rate up to 117 kHz, and a signal-to-noise ratio of 70 dB. Relative accuracy is specified at ±1/2 LSB.

Feature Summary

• Integrates a 12-bit ADC, track/hold amplifier, and serial interface logic within an 8-pin package for space efficiency.
• Operates from a single +5 V supply with low power consumption suitable for battery-powered applications.
• Provides a simple two-wire serial interface using SCLK and SDATA lines for easy microcontroller integration.

Applications

• Battery-powered portable instrumentation
• Industrial process control systems
• Data acquisition modules

Procurement Notes

Verify the specific suffix 'BNZ' against the manufacturer's current ordering guide to confirm availability and compliance status. Confirm that the B grade linearity and commercial temperature range align with project requirements before finalizing procurement.

Selection Notes

Select this component when a compact 12-bit ADC with a ±10 V input range is required. Ensure the system can accommodate a single +5 V supply and provides a stable +2.5 V reference. Verify that the serial interface timing meets the host processor's capabilities for optimal throughput.

Part Context

This part belongs to the AD7893 family of fast 12-bit ADCs. Variants differ by input range (±10 V, ±2.5 V, 0–5 V, 0–2.5 V), accuracy grade (A or B), and package type (DIP, SOIC, Cerdip). The BNZ designation indicates the B grade accuracy version in a plastic DIP package.

Replacement Considerations

Check Analog Devices documentation for direct pin-compatible replacements within the AD7893 series. Consider newer generations if higher speed or lower power is needed, ensuring interface compatibility.