The AD596/AD597 is a monolithic temperature setpoint controller that has been optimized for use at elevated temperatures such as those found in oven control applications.
The AD596 and AD597 are monolithic temperature set‑point controllers optimized for oven control and other high‑temperature applications. They provide cold‑junction compensation, a high‑gain differential amplifier, and programmable hysteresis for set‑point control, as well as a proportional 10 mV/°C output mode.
The document includes functional block diagrams, detailed electrical specifications, supply options, wiring diagrams for temperature‑proportional, set‑point, and stand‑alone modes, and guidance on thermal management and alarm usage.
| Supply Voltage Range | 5 V to 36 V (single supply) or split supplies up to 36 V |
|---|---|
| Quiescent Supply Current | 160 µA typical |
| Operating Temperature Range | -55 °C to +125 °C |
| Gain Error | -1.5 % to +15 % |
| Temperature Proportional Output Scale | 10 mV/°C |
The devices can run from a single supply of 5 V to 36 V or from split supplies whose total does not exceed 36 V.
The alarm output has a flexible format that can drive relays, LEDs, or TTL logic and can source or sink up to 20 mA.
AD596 Setpoint Voltage = 9.6 mV/°C × temperature (°C) + 42 mV.
Typical quiescent supply current is 160 µA, which minimizes self‑heating errors.