Product Overview
Vintage Texas Instrument s SN72810P High-Gain Comparator in DIP-14 Package
This device supports legacy analog and early digital interface circuits that rely on high-gain, fast-response comparators. It provides threshold detection for amplitude discrimination and memory sensing, and its bipolar-supply topology reflects classic 1970s design practices. A comparator/threshold synonym helps match varied documentation sources.
Product Condition
Unused, New Old Stock.
Product Overview
The Texas Instruments SN72810P is the plastic DIP-14 version of the SN72810 differential comparator, featuring the same high open-loop gain and fast switching characteristics documented in the original TI data sheets. It provides TTL/DTL-compatible output behavior, operates from bipolar supplies, and uses a 14-pin layout with pin 4 tied to the case ground. These attributes make the P-package well suited for board-level repairs where socketed DIP formats were standard.
Key Features
- High differential voltage gain, typically 33,000
- Fast response time in the 30–80 ns range
- TTL/DTL-compatible output characteristics
- Bipolar supply operation supporting common legacy rails
- Low input offset voltage for precise threshold detection
- 14-pin DIP format for direct socket replacement
- Case-connected ground at pin 4 per TI package diagram
Applications
- Restoration of vintage logic and interface modules
- Memory sense circuits in early computing systems
- Amplitude discrimination in analog instrumentation
- High-speed threshold and limit detection
- Legacy board repair requiring DIP-14 comparators
- Educational builds replicating early comparator behavior
Frequently Asked Questions
Is the SN72810P electrically identical to the SN72810?
Yes. The P suffix denotes the plastic DIP package; electrical characteristics match those shown for the SN72810 family.
Does this comparator require dual supplies?
Yes. Typical operation uses +12 V and −6 V rails, consistent with original TI test conditions.
Is the pinout compatible with modern 8-pin comparators?
No. The SN72810P uses a 14-pin configuration with several non-connected pins and a case-tied ground node.
Why choose the P package for restoration work?
The DIP-14 format was common in commercial systems, making it suitable for socketed repairs and historically accurate replacements.
Use this comparator to restore legacy threshold circuits by reinstalling its high differential gain and TTL/DTL-compatible output into the original DIP-14 socket on your board.
