AD7898AR-10REEL7

Analog To Digital Converters (ADC) Overview

The AD7898AR-10REEL7 is a 12-bit successive approximation analog-to-digital converter housed in an 8-lead SOIC package. It operates from a single 5 V supply and supports a maximum throughput rate of 220 kSPS. The device features an on-chip track/hold amplifier and accepts an analog input voltage range of ±10 V. It utilizes a flexible three-wire serial interface compatible with both 3 V and 5 V logic systems via the VDRIVE pin. Key dynamic performance specifications include a minimum Signal to (Noise + Distortion) Ratio of 71 dB and a Total Harmonic Distortion of -78 dB max at a 30 kHz input frequency.

Analog To Digital Converters (ADC) Feature Summary

• Integrated signal scaling allows direct interfacing with ±10 V analog signals while operating from a single 5 V supply.
• Dual-mode serial interface supports internal clocking for simplified control or external clocking for power-down capabilities.
• VDRIVE pin enables the digital interface to operate independently at 3 V or 5 V levels regardless of the main supply voltage.

Analog To Digital Converters (ADC) Applications

• Portable instrumentation requiring low power consumption
• Industrial process control data acquisition
• Battery-powered measurement devices

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, as REEL7 indicates tape and reel configuration. Confirm RoHS compliance status if lead-free requirements are mandatory for the assembly process. Ensure the temperature grade corresponds to the application environment, as the A version specifies operation between -40°C and +85°C.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-speed 12-bit conversion is needed within a compact 8-lead footprint. The AD7898-10 variant is appropriate for applications requiring a wide ±10 V input range without external attenuation circuitry. Consider the power-down mode availability if extending battery life in intermittent sampling applications is a priority.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD7898 family of fast, low-power ADCs manufactured by Analog Devices. The series includes variants with different input ranges, such as the AD7898-3 which supports ±2.5 V inputs. All members share the same core architecture, package style, and interface protocols, differing primarily in analog front-end scaling and specific ordering suffixes.

Analog To Digital Converters (ADC) Replacement Considerations

The AD7898AR-3 serves as a functional substitute within the same package if the system design accommodates a reduced ±2.5 V input range instead of ±10 V. Other members of the AD7898 family may be considered for pin-compatible upgrades or downgrades depending on specific input voltage requirements.