LTC1151| Datasheet

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LTC1151 Dual 15V Zero-Drift Operational Amplifier

FEATURES

DESCRIPTIO

Maximum Offset Voltage Drift: 0.05uV/ C High Voltage Operation: 18V No External Components Required Maximum Offset Voltage: 5uV Low Noise: 1.5uVP-P (0.1Hz to 10Hz) Minimum Voltage Gain: 125dB Minimum CMRR: 106dB Minimum PSRR: 110dB Low Supply Current: 0.9mA/Amplifier Single Supply Operation: 4.75V to 36V Input Common Mode Range Includes Ground Typical Overload Recovery Time: 20ms Available in 8-Lead N8 and 16-Lead SW Packages

The LTC 1151 is a high voltage, high performance dual zero-drift operational amplifier. The two sample-and-hold capacitors per amplifier required externally by other chopper amplifiers are integrated on-chip. The LTC1151 also incorporates proprietary high voltage CMOS structures which allow operation at up to 36V total supply voltage. The LTC1151 has a typical offset voltage of 0.5uV, drift of 0.01uV/ C, 0.1Hz to 10Hz input noise voltage of 1.5uVP-P, and a typical voltage gain of 140dB. It has a slew rate of 3V/us and a gain-bandwidth product of 2.5MHz with a supply current of 0.9mA per amplifier. Overload recovery times from positive and negative saturation are 3ms and 20ms, respectively. The LTC1151 is available in a standard 8-lead plastic DIP package as well as a 16-lead wide body SO. The LTC1151 is pin compatible with industry-standard dual op amps and runs from standard 15V supplies, allowing it to plug in to most standard bipolar op amp sockets while offering significant improvement in DC performance
.
, LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.

APPLICATIO S

Strain Gauge Amplifiers Instrumentation Amplifiers Electronic Scales Medical Instrumentation Thermocouple Amplifiers High Resolution Data Acquisition

TYPICAL APPLICATIO

15V Dual Thermocouple Amplifier
51 100* 240k 15V

60
50

0.1uF 6 15V VIN K 7 LT1025 3 VO GND 4 R 5 470k 15V TYPE K 2

NOISE VOLTAGE (nV/Hz)

0.1uF

8 7 OUTPUT A 100mV/ C

40 30 20 10 0

+

2k

5

1/2 LTC1151

+
240k

51 100*

0.1uF 1 OUTPUT B 100mV/ C

+

2k

3

1/2 LTC1151 4

+

0.1uF TYPE K * FULL SCALE TRIM: TRIM FOR 10.0V OUTPUT WITH THERMOCOUPLE AT 100 C 15V
1151 TA01

U
Noise Spectrum
1 10 100 1k FREQUENCY (Hz) 10k
1151 TA02

U

U

1151fa

1

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LTC1151 DATASHEET