Analog Devices Inc. 5962-8876403XX

Overview

5962-8876403XX from Analog Devices is a military-grade, 8-channel, 8-bit analog-to-digital converter (ADC) fabricated in LC2MOS technology. It features built-in track-and-hold, 2.5 µs per-channel conversion time, ±1/2 LSB total unadjusted error (C/U grade), single 5 V supply operation, and supports 10 kHz full-scale sinusoidal inputs across all channels - used in real-time speech analysis and multichannel data acquisition systems.

For engineers reviewing the 5962-8876403XX datasheet, 5962-8876403XX pinout, 5962-8876403XX application, or 5962-8876403XX equivalent, this page delivers verified technical context, exact package mapping (Q-28 ceramic DIP), validated pin functions, confirmed timing behavior in Mode 0/1, and two field-proven alternative parts with documented functional trade-offs.

Technical Context

The 5962-8876403XX implements a half-flash architecture using two 4-bit flash ADCs - one for MSBs and one for LSBs - with an internal 4-bit DAC to reconstruct and subtract the MSB-derived analog value before LSB conversion. This eliminates external clock requirements and enables deterministic 2.5 µs conversion time per channel.

It operates in two microprocessor interface modes: Mode 0 uses RDY/INT to assert WAIT/DTACK for synchronous read-after-convert; Mode 1 decouples conversion start from data read, enabling non-WAIT operation at the cost of requiring two back-to-back reads for fresh data. Address latching occurs on RD rising edge in Mode 1.

Key Specifications

Pinout & Package

5962-8876403XX is supplied in a hermetically sealed 28-pin ceramic dual-in-line package (Q-28), compliant with MIL-STD-883 Class B processing and DESC Drawing #5692-88764. Package dimensions match JEDEC MS-011AB outline.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit multichannel ADC applications.

Compared with AD7828CQ, 5962-8876403XX adds radiation-hardened screening, extended temperature operation, and full DESC compliance - essential for mission-critical avionics. Versus ADS7822U, it trades resolution for deterministic latency, integrated S/H, and parallel µP interface - optimizing for real-time control loops over static measurement accuracy.

Availability

5962-8876403XX is available at Aetrix Electronics and suitable for avionics sensor hubs, secure telemetry modules, real-time vibration monitoring systems, and military speech analysis platforms requiring stable component supply across extended product lifecycles.

Supply support for 5962-8876403XX 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 precision instrumentation, aerospace, and industrial markets since 1965.

The AD7824/AD7828 product line was engineered for real-time, multichannel data acquisition in resource-constrained embedded systems - emphasizing low-latency conversion, minimal external components, and seamless µP integration without clock generation overhead.

FAQ

What is the operating temperature range for 5962-8876403XX?

The 5962-8876403XX is rated for –55°C to +125°C operation, meeting extended temperature requirements for military and aerospace applications. This range is validated per MIL-STD-883 test methods and reflects guaranteed performance under thermal stress without derating. The device maintains ±1/2 LSB total unadjusted error across this full range when operated with VDD = 5 V ±5% and proper decoupling.

Does 5962-8876403XX require an external clock signal?

No, the 5962-8876403XX does not require an external clock. Its half-flash architecture uses internal timing derived from VDD and process characteristics to complete conversion in a fixed 2.5 µs per channel. This eliminates clock routing, jitter concerns, and external oscillator components - simplifying PCB layout and improving system-level timing predictability in deterministic real-time applications.

How is channel selection implemented on 5962-8876403XX?

Channel selection on 5962-8876403XX uses three address inputs: A0, A1, and A2. These pins decode eight unique combinations (000–111) to select AIN1 through AIN8, as defined in Table I of the datasheet. In Mode 1, the address is latched on the rising edge of RD; in Mode 0, the address must remain stable throughout the CS/RD low period. A2 is unused on 4-channel variants but is functional and required for 8-channel operation.

Can 5962-8876403XX operate with a 2.5 V reference voltage?

Yes, 5962-8876403XX supports differential reference voltages from 1 V to 5 V. With VREF(+) = 2.5 V and VREF(–) = 0 V, the analog input range becomes 0 V to 2.5 V and 1 LSB = 9.77 mV. This increases sensitivity for low-amplitude signals but reduces full-scale headroom. The reference inputs are fully differential, allowing offset configurations - e.g., VREF(–) = 1 V and VREF(+) = 3.5 V yields a 1 V to 3.5 V input range.

What is the maximum source impedance allowed on analog inputs for 5962-8876403XX?

The analog input structure of 5962-8876403XX presents a dynamic capacitive load of ~31 pF during conversion startup. To ensure 1/2 LSB settling within the 1 µs tracking window, Analog Devices specifies a maximum source impedance of 100 Ω. Exceeding this value risks gain error and integral nonlinearity degradation. Driving the inputs with low-output-impedance op amps such as the AD544 or AD644 is recommended for optimal performance.