AD7898ARZ-10REEL7

Overview

The AD7898ARZ-10REEL7 is a 12-bit successive approximation analog-to-digital converter (ADC) housed in an 8-lead SOIC package. It operates from a single 5 V supply and achieves throughput rates up to 220 kSPS. The device features an on-chip track/hold amplifier, an internal clock oscillator, and a flexible high-speed serial interface compatible with 3 V processors via the VDRIVE pin. Designed for the AD7898-10 variant, it accepts an analog input range of ±10 V. Key electrical specifications include a maximum power dissipation of 22.5 mW, a signal-to-noise ratio of 71 dB minimum, and a differential nonlinearity of ±0.9 LSB maximum.

Feature Summary

• Single 5 V supply operation with low power consumption suitable for battery-powered applications
• Flexible three-wire serial interface allowing direct connection to 3 V or 5 V processor systems
• On-chip track/hold amplifier and internal clock oscillator for simplified system design
• Proprietary power-down mode significantly reducing current draw during idle periods

Applications

• Portable instrumentation requiring low power and high speed
• Industrial process control systems
• Data acquisition systems with single-ended inputs
• Battery-operated measurement devices

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, as REEL7 indicates tape and reel quantities. Confirm the temperature grade corresponds to the A version (-40°C to +85°C). Ensure the -10 designation is selected for ±10 V input ranges rather than the -3 variant. Cross-reference the RoHS status if environmental compliance is mandatory for the target assembly.

Selection Notes

Select this component when a 12-bit resolution and 220 kSPS sampling rate are required within an 8-lead footprint. Choose the -10 suffix specifically for ±10 V input voltage ranges; use the -3 suffix for ±2.5 V ranges. Consider Mode 1 operation if external clock synchronization or power-down capabilities are necessary for the application timing constraints.

Part Context

This part belongs to the AD7898 family of fast, single-supply ADCs manufactured by Analog Devices. It shares architectural similarities with other members like the AD7896 and AD7894 but offers distinct performance characteristics regarding resolution and throughput. The series is designed to provide space-saving solutions compared to discrete ADC implementations.

Replacement Considerations

Public confirmed substitute part numbers: AD7898AR-10REEL7.