Product Overview
Analog Devices AD585AQ Monolithic Sample-and-Hold Amplifier CDIP-14
Condition
Unused new old stock (NOS). Ceramic DIP package with clean, straight pins. Markings legible: AD585AQ over date code 8635 with maker symbol. Sourced from surplus inventory.
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Product Overview
Analog Devices AD585AQ precision sample-and-hold amplifier in a hermetic 14-pin ceramic dual in-line package (CDIP-14). Integrates an input buffer amplifier, high-speed low-leakage analog switch, and FET-input integrating stage with an on-chip 100 pF hold capacitor. Designed for fast 12-bit data acquisition systems, high-speed analog signal sampling, and precision peak detection circuits.
Key Features
- Acquisition time: 3.0 µs maximum to ±0.01% (10 V step)
- Droop rate: 1.0 mV/ms maximum with internal hold capacitor
- Small signal bandwidth: 2.0 MHz (-3 dB)
- Slew rate: 10 V/µs
- Operating supply voltage: ±5 V to ±18 V dual supply
- Operating temperature range: -25°C to +85°C industrial rating
- Package: 14-lead hermetic ceramic dual in-line (Cerdip)
Applications
- Replaces failed sample-and-hold amplifiers on legacy analog-to-digital converter front ends and industrial measurement cards.
- Precision signal capture for test benches, high-speed multichannel data logging, and audio processing projects.
- Restores vintage instrumentation, laboratory digitizers, and legacy automated test equipment without circuit redesign.
Frequently Asked Questions
Does this amplifier require an external hold capacitor to function?
No. The AD585AQ includes an internal 100 pF hold capacitor on the die. An optional external capacitor can be connected to pin 11 when lower droop rates are required for longer hold periods.
What supply voltage rails are required for operation?
The device operates from dual split supplies ranging from ±5 V to ±18 V, with nominal operation typically set at ±12 V or ±15 V rails.
Why choose this individually inspected NOS unit?
You receive the exact, legible ceramic component photographed here rather than risking an unverified bulk pull. Shipping is an $8 flat rate across your entire order, or free once your cart passes $28, with all orders leaving our Idaho warehouse the same or next business day.
Hermetic ceramic and classic analog speed - ready to lock in your next measurement before the signal slips away.
