LT1462 查看數據表（PDF） - Linear Technology

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LT1462

Dual/Quad Micropower, 260µW C-Load Picoampere Bias Current JFET Input Op Amps

Linear Technology 

LT1462/LT1463

TYPICAL APPLICATIONS

10Hz 4th Order Chebyshev Lowpass Filter (0.01dB Ripple)

R1

237k

VIN

R2

237k

C1

33nF

R3

249k

C2

100nF

15V

2– 4

1/4 LT1463

3+

11

–15V

R5

154k

C3

10nF

R4 R6

1 154k 249k 13 –

C4

330nF

1/4 LT1463

12 +

TYPICAL OFFSET ≈ 0.6mV

1% TOLERANCES

FOR VIN = 10VP-P,V OUT = –110dB AT f > 300Hz

V OUT = –6dB AT f = 16Hz

THE LOW INPUT BIAS CURRENTS ALLOW THE USE OF HIGH RESISTOR VALUES

14

VOUT

LT1462 • TA05

Micropower 0.026% Frequency-to-Voltage Converter

R2

10k

GAIN TRIM

75k*

C2

1µF

R1

1k

– 5V

LT1004-1.2

VREF = –1.235V

13

C1

1µF

fIN = FREQUENCY IN

0kHz TO 30kHz

16

1/4 LTC®1043

14

12

4

CS

1000pF

17

5V

2– 8

1

1/2 LT1462

5V 3 +

4

0V TO 3V

OUTPUT

–5V

–5V

V OUT = (R2)(CS)(VREF)(fIN)

*TRW#MTR-5/120ppm

LT1462 • TA04

8

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