Features and Benefits
- 14 Levels of Programmable Gain
- 125dB CMRR Independent of Gain
- Gain Accuracy 0.1% (Typ)
- Maximum Offset Voltage of 10µV
- Maximum Offset Voltage Drift: 50nV/°C
- Rail-to-Rail Input and Output
- Parallel or Serial (SPI) Interface for Gain Setting
- Supply Operation: 2.7V to ±5.5V
- Typical Noise: 2.5µVP-P (0.01Hz to 10Hz)
- 16-Lead SSOP and 12-Lead DFN Packages
The LTC6915 is a precision programmable gain instrumentation amplifier. The gain can be programmed to 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096 through a parallel or serial interface. The CMRR is typically 125dB with a single 5V supply with any programmed gain. The offset is below 10µV with a temperature drift of less than 50nV/°C.
The LTC6915 uses charge balanced sampled data techniques to convert a differential input voltage into a single ended signal that is in turn amplified by a zero-drift operational amplifier.
The differential inputs operate from rail-to-rail and the single-ended output swings from rail-to-rail. The LTC6915 can be used in single power supply applications as low as 2.7V, or with dual ±5V supplies. The LTC6915 is available in a 16-lead SSOP package and a 12-lead DFN surface mount package.
- Thermocouple Amplifiers
- Electronic Scales
- Medical Instrumentation
- Strain Gauge Amplifier
- High Resolution Data Acquisition
Markets and Technologies
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
R465 Reliability Data3/26/201832 K
DN463 - Upgrade Your Microcontroller ADC to True 12-Bit Performance3/10/200985K
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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