Analog Devices Inc. AD9002TD/883B

Overview

AD9002TD/883B from Analog Devices is a military-grade, 8-bit monolithic analog-to-digital converter with 0.5 LSB differential linearity, 150 MSPS encode rate, and 160 MHz large-signal analog input bandwidth-designed for radar warning receivers and electronic warfare signal acquisition.

For engineers reviewing the AD9002TD/883B datasheet, AD9002TD/883B pinout, AD9002TD/883B application, or AD9002TD/883B equivalent, key selection factors include MIL-STD-883B compliance, –55°C to +125°C operating range, ECL-compatible outputs, overflow detection capability, and ceramic DIP package suitability for high-reliability defense systems.

Technical Context

The AD9002TD/883B implements a 256-stage parallel comparator architecture with ECL-compatible output latches, enabling single-cycle conversion at up to 150 MSPS. Its wide 160 MHz analog input bandwidth eliminates need for external track-and-hold in pulse-acquisition applications.

It features an externally controllable hysteresis pin (0–10 mV adjustment), overflow inhibit logic, and dual –5.2 V analog/digital supplies. The device uses a resistor ladder reference network with REFMID tap for integral linearity trimming and supports differential ENCODE inputs for noise-immune clocking.

Key Specifications

Pinout & Package

AD9002TD/883B is housed in a 28-lead side-brazed ceramic dual in-line package (SBDIP, D-28) compliant with MIL-STD-883 Class B. The package provides hermetic sealing, thermal stability, and mechanical robustness for aerospace and defense deployments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed ADC applications.

Compared with AD9002SD/883B, the AD9002TD/883B offers tighter 0.5 LSB linearity for critical pulse parameter extraction; compared with AD9042, it trades resolution and power for military reliability, speed, and ECL interoperability in harsh-platform signal acquisition.

Availability

AD9002TD/883B is available at Aetrix Electronics and suitable for radar warning receivers, electronic warfare systems, and laser detection platforms requiring stable component supply under ITAR-controlled logistics and long-lifecycle support.

Supply support for AD9002TD/883B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving defense, aerospace, communications, and industrial markets since 1965.

The AD9002 product line was developed specifically for high-speed, wideband digitization in military electronic systems-emphasizing MIL-STD-883B reliability, ECL compatibility, and pulse-fidelity preservation across extreme temperatures.

FAQ

What is the guaranteed differential linearity specification for AD9002TD/883B across its full temperature range?

The AD9002TD/883B guarantees ≤0.5 LSB differential linearity over its full –55°C to +125°C operating range, as confirmed in the REV. G datasheet's Electrical Characteristics table under "AD9002TD" column and "Differential Linearity" row. This specification applies to all units screened to MIL-STD-883B Class B requirements and is validated at temperature extremes during production test Level VI.

Does AD9002TD/883B require external track-and-hold circuitry for 150 MSPS sampling?

No, AD9002TD/883B does not require external track-and-hold circuitry due to its 160 MHz large-signal analog input bandwidth and optimized comparator design. The device achieves accurate acquisition of fast pulses directly-verified by transient response of 6 ns and aperture uncertainty of only 15 ps-as stated in the General Description and Dynamic Performance sections of the AD9002 datasheet.

What package type and lead finish does AD9002TD/883B use, and is it hermetically sealed?

AD9002TD/883B uses a 28-lead side-brazed ceramic dual in-line package (SBDIP, D-28) with gold metallization and hermetic ceramic construction. Per the Outline Dimensions drawing on page 8 of REV. G, this package meets MIL-STD-883B hermeticity requirements and is explicitly designated for military temperature range operation (–55°C to +125°C).

How is overflow behavior controlled on AD9002TD/883B, and what is the function of Pin 2?

Overflow behavior on AD9002TD/883B is controlled by Pin 2 (OVERFLOW INH). When left floating at –5.2 V, overflow is enabled and the device outputs logic HIGH on Pin 27 (OVERFLOW) and logic LOW on all data bits for overrange inputs (return-to-zero). When tied to ground, overflow is inhibited and all data bits go HIGH while OVERFLOW remains LOW (non-return-to-zero), as detailed in the Functional Description section.

Can AD9002TD/883B interface directly with standard 10K ECL logic without level-shifting?

Yes, AD9002TD/883B features fully ECL-compatible digital outputs and inputs, with logic "1" voltage of –1.1 V and logic "0" voltage of –1.5 V-matching standard 10K/10KH ECL families. The datasheet explicitly states compatibility with these logic families and specifies 100 Ω termination to –2 V, confirming direct interface capability without level-shifting circuitry.