LTC6915 Series

Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain

Catalog

Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain

Part	Number of Circuits	Mounting Type	Current - Input Bias	Slew Rate	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply Span (Min) [Min]	Package / Case	Package / Case	Package / Case	Voltage - Input Offset	Current - Supply	Amplifier Type	Gain Bandwidth Product	Output Type
Analog Devices LTC6915HGN#TRPBF	1	Surface Mount	4 nA	0.2 V/µs	16-SSOP	125 °C	-40 °C	2.7 V	0.154 in	16-SSOP	3.9 mm	5 çV	1.73 mA	Instrumentation	200 kHz	Rail-to-Rail
Analog Devices LTC6915IDE#PBF	1	Surface Mount	4 nA	0.2 V/µs	12-DFN (4x3)	85 °C	-40 °C	2.7 V		12-WFDFN Exposed Pad		5 çV	1.73 mA	Instrumentation	200 kHz	Rail-to-Rail
Analog Devices LTC6915CDE#PBF	1	Surface Mount	4 nA	0.2 V/µs	12-DFN (4x3)	70 °C	0 °C	2.7 V		12-WFDFN Exposed Pad		5 çV	1.73 mA	Instrumentation	200 kHz	Rail-to-Rail

Catalog

Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain

Key Features

• 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

Description

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.ApplicationsThermocouple AmplifiersElectronic ScalesMedical InstrumentationStrain Gauge AmplifierHigh Resolution Data Acquisition