Overview
The AD595ADZ, produced by Analog Devices Inc., is a comprehensive instrumentation amplifier and thermocouple cold junction compensator integrated into a single monolithic chip. This device is specifically designed for use with Type K (chromel-alumel) thermocouples, offering a high-level output of 10 mV/°C directly from the thermocouple signal. It combines an ice point reference with a precalibrated amplifier, making it suitable for a variety of temperature measurement applications. The AD595ADZ can operate on a single-ended supply, including +5 V, and can measure temperatures below 0°C when a negative supply is included.
Key Specifications
| Specification | Value |
|---|---|
| Type | Type K Thermocouple Amplifier |
| Output Voltage | 10 mV/°C |
| Supply Voltage | Single-ended (including +5 V), with optional negative supply for temperatures below 0°C |
| Supply Current | Typically 160 µA (unloaded), capable of delivering ±5 mA to a load |
| Bandwidth | 15 kHz |
| Package | 14-Lead Side Brazed CerDIP or 14-Lead CerDIP |
| Operating Temperature Range | 0°C to +50°C |
| Calibration Accuracy | ±1°C (C version), ±3°C (A version) |
| Thermocouple Failure Alarm | Yes, with TTL drive capability |
Key Features
- Precalibrated for Type K thermocouples with the option to recalibrate for other thermocouple types using external resistors.
- Low impedance voltage output for direct connection to various measurement systems.
- Thermocouple failure alarm with flexible output format, including TTL drive capability.
- Pin-strapping options for use as a linear amplifier-compensator or as a switched output setpoint controller.
- Low power consumption with a typical supply current of 160 µA.
- Capable of delivering up to ±5 mA to a load.
Applications
The AD595ADZ is suitable for a wide range of temperature measurement applications, including industrial process control, medical devices, automotive systems, and any environment where accurate and reliable temperature sensing is critical. It is particularly useful in scenarios where cold junction compensation is necessary, and a high-level output signal is required for easy integration with other system components.
Q & A
- What type of thermocouple is the AD595ADZ precalibrated for? The AD595ADZ is precalibrated for Type K (chromel-alumel) thermocouples.
- What is the output voltage of the AD595ADZ per degree Celsius? The output voltage is 10 mV/°C.
- Can the AD595ADZ operate on a single supply voltage? Yes, it can operate on a single-ended supply, including +5 V, and can measure temperatures below 0°C with an optional negative supply.
- What is the typical supply current of the AD595ADZ? The typical supply current is 160 µA when unloaded.
- What is the bandwidth of the AD595ADZ? The bandwidth is 15 kHz.
- Does the AD595ADZ have a thermocouple failure alarm? Yes, it includes a thermocouple failure alarm with TTL drive capability.
- What are the available package options for the AD595ADZ? It is available in 14-Lead Side Brazed CerDIP and 14-Lead CerDIP packages.
- What is the operating temperature range of the AD595ADZ? The operating temperature range is from 0°C to +50°C.
- Can the AD595ADZ be recalibrated for other thermocouple types? Yes, it can be recalibrated using external resistors.
- What are the calibration accuracy options for the AD595ADZ? The calibration accuracy options are ±1°C (C version) and ±3°C (A version)).
