1. General Overview

️· What they are: The REF01 is a 10V voltage reference, and the REF02 is a 5V voltage reference. Both are designed for precision applications.
️· Key Features (Both):
- High precision and stability.
- Trim terminals for output adjustment.
- Temperature compensation.
- Wide operating temperature range (depending on the specific variant).
- Available in various package options (TO-99, Hermetic DIP, Plastic DIP, SO).
️· REF02 Specific: Provides a temperature-dependent output voltage (TEMP pin), proportional to absolute temperature (approximately 2.1mV/°C).

2. Absolute Maximum Ratings

️· Input Voltage: 40V (for both REF01 and REF02).
️· Power Dissipation: 500mW (in TO-99 and DIP packages), 300mW (in SO package).
️· Operating Temperature Range: Varies by variant, but generally -55°C to +125°C or 0°C to +70°C. Specific variants (e.g., REF01CESA) have narrower ranges.
️· Storage Temperature Range: -65°C to +150°C.

3. Output Adjustment

️· REF01: Can adjust the 10V output over a range of 10V ±300mV. A change of 100mV alters the temperature coefficient by approximately 0.7ppm/°C.
️· REF02: Can adjust the 5V output over a range of 5V ±300mV. Similar temperature coefficient impact (0.7ppm/°C) with output adjustment.

4. REF02 Temperature Output

️· Scale Factor: Approximately 2.1mV/°C.
️· Formula: Output Voltage = 2.1(T + 273)mV, where T is temperature in °C.

5. Ordering Information

️· The document provides extensive ordering information, listing various part numbers with specific temperature ranges, accuracy specifications (Initial Error, Temperature Coefficient), and package types.
️· Important Note: Pin 3 on the REF01 is not connected (N.C.), while Pin 3 on the REF02 is the TEMP output.
️· The availability of the part numbers is subject to factory confirmation.

6. Disclaimers

️· Maxim is not responsible for circuitry outside of its own products.
️· Specifications are subject to change without notice.