AD7893BN-10

Overview

The AD7893BN-10 is a 12-bit successive approximation analog-to-digital converter (ADC) housed in an 8-pin mini-DIP package. It operates from a single +5 V supply and features an on-chip track/hold amplifier with a conversion time of 6 μs maximum. The device supports a ±10 V input voltage range and utilizes a high-speed two-wire serial interface for data output. Key electrical specifications include a typical power dissipation of 25 mW, a signal-to-noise ratio of 72 dB, and a relative accuracy of ±1/2 LSB. The operating temperature range extends from -40 °C to +85 °C.

Feature Summary

• Integrated on-chip track/hold amplifier ensures accurate sampling of input signals.
• High-speed serial interface allows easy connection to microcontrollers using only two wires.
• Single +5 V supply operation enables low-power performance suitable for portable applications.

Applications

• Battery-powered instrumentation systems
• Portable data acquisition devices
• Industrial process control monitoring

Procurement Notes

Verify the specific ordering suffix BN-10 against the manufacturer's current datasheet to confirm package type and input range compatibility. Ensure that the external reference voltage source meets the specified requirements for optimal linearity and accuracy performance during system integration.

Selection Notes

Select this component when a compact 12-bit ADC with a wide ±10 V input range is required. Consider the 6 μs conversion time and 117 kHz throughput rate for system timing constraints. Verify that the serial interface protocol aligns with the host processor's capabilities before finalizing the design.

Part Context

This part belongs to the AD7893 family of fast, 12-bit ADCs fabricated in Linear Compatible CMOS technology. The family includes variants with different input ranges and packages, such as SOIC and Cerdip options. The AD7893BN-10 specifically denotes the plastic DIP package version designed for the ±10 V bipolar input range.

Replacement Considerations

Direct substitutes within the same series include the AD7893AN-10 for standard accuracy or the AD7893BR-10 for improved linearity in an SOIC package. Cross-family replacements require verification of pinout compatibility and serial interface timing parameters.