AD7776ARZ-REEL

Overview

The AD7776ARZ-REEL is a high-speed, single-channel, 10-bit Analog-to-Digital Converter (ADC) from the ADI LC2MOS family. It operates on a single +5 V supply and features a parallel data interface with a throughput rate up to 378 kS/s. The device includes an internal voltage reference output at REFIN and supports simultaneous sampling for multi-channel variants in the series. Key electrical parameters include a resolution of 10 bits, a signal-to-noise ratio of -56 dB min, and a power dissipation of 75 mW in normal mode. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a track-and-hold amplifier capable of handling input frequencies up to the Nyquist limit of the maximum conversion rate.
• Includes a programmable control register allowing configuration for single or simultaneous channel sampling modes.
• Features a dedicated BUSY/INT status output that can be configured to indicate active conversion periods or completion interrupts.
• Supports a low-power shutdown state where linear circuitry is disabled to minimize energy consumption.

Applications

• Read/write head positioning servos in high-density hard disk drives
• General-purpose instrumentation requiring fast acquisition times
• Digital signal processing systems such as voice recognition and echo cancellation

Procurement Notes

Verify the specific package option suffix against the ordering guide to ensure compatibility with your PCB footprint. Confirm that the reel quantity matches your production requirements. Check RoHS compliance status and lead soldering temperatures against your assembly process specifications before finalizing orders.

Selection Notes

Select this component when a single-channel 10-bit ADC with high speed is required. Ensure the system design accommodates the parallel interface timing constraints. Verify that the analog input voltage range aligns with the VBIAS ± VSWING specification derived from the reference voltage. Consider the thermal impedance if operating near the upper temperature limits.

Part Context

This part belongs to the AD7776/AD7777/AD7778 family of LC2MOS high-speed ADCs. While the AD7776 provides one channel, the AD7777 offers four channels and the AD7778 provides eight channels. All share identical core architecture, timing characteristics, and interface protocols, differing primarily in channel count and pinout configurations.

Replacement Considerations

Direct functional substitutes within the same family include the AD7777ARZ and AD7778ARZ, provided the additional channels are acceptable. For single-channel applications, verify pin compatibility. No other distinct part numbers are confirmed as direct replacements in the provided documentation.