ADI 5962-8872101PA
- Dual ultra-low noise precision op amp — 5 nV/√Hz maximum voltage noise density at 1 kHz
- Excellent input offset voltage: 75 µV maximum with 1 µV/°C maximum drift
- Very high open-loop gain: 1,500 V/mV minimum for precise closed-loop accuracy
- Outstanding common-mode rejection: 106 dB minimum
- MIL-STD-883 Class B qualified — 8-lead ceramic DIP package
- Military temperature range: –55°C to +125°C
Noise is the ultimate constraint in precision military signal chains. Once it enters a signal, no amount of gain or filtering can recover what it has corrupted. The ADI 5962-8872101PA — the military SMD designation for Analog Devices' OP270Z processed to MIL-STD-883 Class B — addresses this at the amplifier level, with a 5 nV/√Hz maximum noise density that sets the floor for what the downstream signal chain has to work with. Two independent amplifier channels share a single 8-lead ceramic DIP package, making it a natural fit for differential signal processing, precision instrumentation, and two-channel analog front-end designs where board area and component count are constrained.
The OP270 architecture delivers the combination of low noise, low offset, and high gain that precision military applications demand — not just at room temperature, but across the full –55°C to +125°C range. The 75 µV maximum input offset voltage and 1 µV/°C maximum drift are specifications that hold across the military temperature range under MIL-STD-883 screening, not merely at 25°C. At 1,500 V/mV minimum open-loop gain and 106 dB minimum common-mode rejection, the OP270 maintains its precision even in electrically noisy military system environments where interference couples into signal paths. The 5 MHz gain-bandwidth product and 2.4 V/µs slew rate place it in the precision rather than high-speed category — the right trade for designs where noise floor matters more than bandwidth.
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In precision military signal chain design, the op amp noise floor defines the system noise floor. Every nanovolt of amplifier noise referred to the input gets multiplied by the closed-loop gain — and in high-gain instrumentation amplifier configurations typical of military sensor interfaces, that multiplication is significant. The ADI 5962-8872101PA OP270Z sets a 5 nV/√Hz maximum ceiling on that contribution, processed to MIL-STD-883 Class B with full qualification documentation, in an industry-standard 8-lead ceramic DIP package that drops into existing dual op amp footprints without layout changes.
5962-8872101PA Architecture: Why 5 nV/√Hz Matters in Military Designs
The OP270’s 5 nV/√Hz maximum specification at 1 kHz is meaningful precisely because it is a maximum, not a typical — guaranteed under MIL-STD-883 screening across the military temperature range. Combined with the 75 µV maximum input offset voltage and 1 µV/°C drift ceiling, it delivers predictable noise and offset performance at temperature extremes where commercial-grade amplifiers often exceed their stated specifications. The 1,500 V/mV minimum open-loop gain ensures that closed-loop gain errors remain small even in high-gain configurations, while the 106 dB minimum CMR actively suppresses the common-mode interference that couples into sensor cables and long signal runs in military system installations.
5962-8872101PA in Military Precision Signal Chains
The OP270Z is frequently used at the input stage of precision signal chains — ahead of ADCs — where its noise performance sets the achievable signal-to-noise ratio for the entire downstream system. In designs using the 5962-9451801MLA AD7572S 12-bit ADC, a low-noise front-end amplifier like the 5962-8872101PA prevents the ADC’s full dynamic range from being noise-limited by the amplifier stage. For DAC output stages using the 5962-8770002EA AD7226 quad DAC, the OP270’s high open-loop gain and low offset voltage support precise voltage output conditioning. The industry-standard 8-lead dual pinout also makes it a straightforward upgrade path from lower-performance dual op amps on existing military boards.
Sourcing the ADI 5962-8872101PA
The OP270Z in its military ceramic DIP package has been a staple of defense electronics for decades, and the 5962-8872101PA remains actively specified in both legacy maintenance programs and new designs where its noise and precision combination is difficult to match in a qualified component. We maintain verified inventory with full lot traceability, MIL-STD-883 certificate of conformance, and anti-counterfeit inspection on every order. Contact us today to confirm availability and request a quote — our team responds within 24 hours.
- 5 nV/√Hz maximum noise density — a guaranteed ceiling, not a typical, across the military temperature range
- Dual channel in one package — reduces component count in two-channel signal chain designs
- Industry-standard 8-lead dual op amp pinout — direct footprint replacement for lower-performance alternatives
- 106 dB minimum CMR actively suppresses interference in military sensor cable environments
- 1,500 V/mV minimum open-loop gain maintains closed-loop accuracy in high-gain configurations
- ±2V to ±18V supply range accommodates both low-voltage and standard military supply rails
- MIL-STD-883 Class B qualification with full lot traceability documentation
- 8-lead ceramic DIP package — hermetic construction for military environmental reliability
Frequently Asked Questions (FAQ)
What Is the ADI 5962-8872101PA and What Is Its Commercial Equivalent?
The 5962-8872101PA is the military SMD procurement designation for Analog Devices’ OP270Z, processed to MIL-STD-883 Class B under drawing 5962-88721. It is a dual ultra-low noise precision operational amplifier with 5 nV/√Hz maximum voltage noise density, 75 µV maximum input offset voltage, and 106 dB minimum CMR, rated for military operation from –55°C to +125°C in an 8-lead ceramic DIP package.
How Does the 5962-8872101PA Compare to the OP27 in Military Applications?
The OP270 is Analog Devices’ dual version of the OP27, sharing comparable noise and precision performance in a dual package. Where the OP27 provides a single amplifier channel in an 8-lead package, the OP270 provides two independent channels in the same footprint — making the 5962-8872101PA the natural choice when two precision low-noise amplifier channels are needed and board area or component count is constrained.
What Is the Noise Density Specification and Why Does It Matter?
The 5 nV/√Hz voltage noise density specifies how much noise the amplifier contributes per unit bandwidth, referred to its input. In a system with 40 dB of gain, this noise gets multiplied by 100 at the output. Lower noise density directly improves the system signal-to-noise ratio, which determines the minimum detectable signal level — a critical parameter in radar receivers, inertial sensors, and precision instrumentation applications.
Is the 5962-8872101PA Pin-Compatible With Other Dual Op Amps?
Yes. The OP270Z uses the industry-standard 8-lead dual op amp pinout, which is shared by a wide range of dual precision amplifiers. This makes the 5962-8872101PA a drop-in replacement for lower-performance dual op amps in existing military board designs without PCB layout changes.
How Do I Request a Quote for the ADI 5962-8872101PA?
Submit an inquiry through our website contact form or email our sales team directly. We will respond within 24 hours with pricing, availability, and lead time — and can discuss long-term supply agreements for production programs.