Texas Instruments RES11A Matched Thin-Film Resistor Dividers
Texas Instruments RES11A Matched Thin-Film Resistor Dividers are a matched pair of resistive dividers implemented in thin-film SiCr with Texas Instruments’ modern, high-performance, analog CMOS process. The device has a nominal input resistance of 1kΩ for low thermal and current noise and is available in several nominal ratios to meet a wide array of system needs. Use the RES11A in an inverse gain configuration by simply rotating the device placement by 180°. This feature supports layout reuse and increases flexibility for applications such as discrete instrumentation or difference amplifier implementations.
The Texas Instruments RES11A series features high ratio-matching precision, with the measured ratio of each divider within ±120ppm (typical) of the nominal. This precision is maintained over the temperature range, with a maximum ratio drift of only ±2ppm/°C. Additionally, the biased long-term stability of the device has been proven through thorough characterization. The RES11A has a temperature range from –40°C to +125°C. The device is offered in an 8-pin, SOT-23-THIN package, with a body size of 2.9mm×1.6mm (body size is a nominal value and does not include pins).
Features
- Wide temperature range of –40°C to +125°C
- ±0.05 % (maximum) high ratio matching precision
- ±2ppm/°C TCR (maximum) low drift
Applications
- Precision voltage divider, precision level translation
- Gain and attenuating amplifiers
- Difference amplifiers with high CMRR
- Discrete instrumentation amps with high gain accuracy
- Fully differential amplifiers with high gain accuracy
- Pinpoint comparator threshold setting
Functional Block Diagram
