LT2178 datasheet(1/12 Pages) LINER

tên linh kiện	LT2178

Giải thích chi tiết về linh kiện	17A Max, Dual and Quad, Single Supply, Precision Op Amps

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LT2178/LT2179

1

21789fc

TYPICAL APPLICATION

DESCRIPTION

17µA Max, Dual and Quad,

Single Supply, Precision Op Amps

The LT

®2178 is a micropower dual op amp in a surface

mount standard 8-pin conﬁguration, the LT2179 is a

micropower quad op amp offered in a surface mount

14-pin package. Both devices are optimized for single

supply operation at 5V. Speciﬁcations are also provided

at

±15V supply.

The extremely low supply current is combined with true

precision speciﬁcations: offset voltage is 30μV and offset

current is 50pA. Both offset parameters have low drift with

temperature. The 1.5pAP-P current noise and picoampere

offset current permit the use the megohm level source

resistors without introducing serious errors. Voltage

noise, at 0.9μVP-P, is remarkably low considering the low

supply current.

The LT2178/LT2179 can be operated from a single supply

(as low as one lithium-cell or two NiCd batteries). The input

range goes below ground. The all-NPN output stage swings

to within a few millivolts of ground while sinking current.

No power consuming pull down resistors are needed.

For surface mount applications where three times higher

supply current is acceptable, the micropower LT1077

single, LT2078 dual and LT2079 quad are recommended.

The LT1077/LT2078/LT2079 have signiﬁcantly higher

bandwidth, slew rate, lower voltage noise and better output

drive capability. For applications requiring DIP packages

refer to the LT1178/LT1179.

Self-Buffered, Dual Output, Micropower Reference

FEATURES

APPLICATIONS

n SO Package with Standard Pinout

n Supply Current per Ampliﬁer: 17μA Max

n Offset Voltage: 70μV Max

n Offset Current: 250pA Max

n Input Bias Current: 5nA Max

n Voltage Noise: 0.9μVP-P, 0.1Hz to 10Hz

n Current Noise: 1.5pAP-P, 0.1Hz to 10Hz

n Offset Voltage Drift: 0.5μV/°C

n Gain Bandwidth Product: 85kHz

n Slew Rate: 0.04V/μs

n Single Supply Operation

Input Voltage Range Includes Ground

Output Swings to Ground while Sinking Current

No Pull-Down Resistors Needed

n Output Sources and Sinks 5mA Load Current

n Battery- or Solar-Powered Systems

Portable Instrumentation

Remote Sensor Ampliﬁer

Satellite Circuitry

n Micropower Sample-and-Hold

n Thermocouple Ampliﬁer

n Micropower Filters

Supply Current vs Temperature

2

3

5

6

1/2 LT2178

1

0.1μF

250k

1M*

LT1004-1.2

4

7

2M

0.1μF

1.2365V

OUTPUT

1/2 LT2178

2.470V

OUTPUT

4V TO 9V

21789 TA01

TOTAL BATTERY CURRENT = 28mA

OUTPUT ACCURACY = 0.4% MAX

TEMPERATURE COEFFICIENT = 20ppm/°C

LOAD REGULATION = 25ppm/mA, IL ≤ 5mA, V

+ ≥ 5V

LINE REGULATION = 10ppm/V

* 0.1% FILM RESISTORS

8

TEMPERATURE (°C)

–50

–25

0

25

50

21789 TA02

75

20

18

16

14

12

10

100

VS = 15V

VS = 5V, 0V

VS = 1.5V

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Số phần tương tự - LT2178

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Linear Technology	LT2178	305Kb / 12P	17uA Max, Dual and Quad, Single Supply, Precision Op Amps
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Mô tả tương tự - LT2178

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Linear Technology	LT1078	514Kb / 20P	Micropower, Dual and Quad, Single Supply, Precision Op Amps
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Maxim Integrated Produc...	MXL1178	265Kb / 8P	17uA Max, Dual/Quad, Single-Supply, Precision Op Amps 19-0104; Rev 1; 8/94
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Linear Dimensions Semic...	LT2079CS	345Kb / 16P	Micropower, Dual and Quad, Single Supply, Precision Op Amps
Linear Technology	LT2179	216Kb / 12P	17A Max, Dual and Quad, Single Supply, Precision Op Amps
	LT1178	246Kb / 12P	17A Max, Dual and Quad, Single Supply, Precision Op Amps
	LT1179	246Kb / 12P	17A Max, Dual and Quad, Single Supply, Precision Op Amps
	LT1079	609Kb / 20P	Micropower, Dual and Quad, Single Supply, Precision Op Amps

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