Texas Instruments RES11A/RES11A-Q1 Thin-Film Resistor Dividers
Texas Instruments RES11A/RES11A-Q1 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. These devices have a nominal input resistance of 1kΩ for low thermal and current noise and are 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 RES11A-Q1 are AEC-Q200 qualified automotive devices.
The Texas Instruments RES11A/RES11A-Q1 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/RES11A-Q1 devices operate at a temperature range from –40°C to 125°C. These resistor dividers are offered in an 8-pin, SOT-23-THIN package, with a body size of 2.9mm x 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
- Ratio = RIN : RG, RIN = 1kΩ (nominal)
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
Development Tools
Texas Instruments SMALL-AMP-DIP Evaluation Module
Speeds up small package op-amp prototyping by providing a fast and easy way to interface.
Texas Instruments INA630EVM Evaluation Module
Designed to facilitate banana connections for 4.5V to 36V DC power supplies
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