Datasheet LT1793 (Analog Devices) - 12
| Fabricante | Analog Devices |
| Descripción | Low Noise, Picoampere Bias Current, JFET Input Op Amp |
| Páginas / Página | 12 / 12 — TYPICAL APPLICATIONS N. 10Hz Fourth Order Chebyshev Lowpass Filter … |
| Formato / tamaño de archivo | PDF / 176 Kb |
| Idioma del documento | Inglés |
TYPICAL APPLICATIONS N. 10Hz Fourth Order Chebyshev Lowpass Filter (0.01dB Ripple). Accelerometer Amplifier with DC Servo
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LT1793
U TYPICAL APPLICATIONS N 10Hz Fourth Order Chebyshev Lowpass Filter (0.01dB Ripple)
R2 237k R5 154k R1 R3 15V C1 237k 249k 33nF 2 – 7 V R4 R6 C3 IN 154k 249k 6 2 – 10nF LT1793 C2 3 + 6 100nF C4 LT1793 VOUT 4 330nF 3 + 1793 TA04 –15V TYPICAL OFFSET ≈ 0.8mV 1% TOLERANCES FOR VIN = 10VP-P, VOUT = –121dB AT f > 330Hz = – 6dB AT f = 16.3Hz LOWER RESISTOR VALUES WILL RESULT IN LOWER THERMAL NOISE AND LARGER CAPACITORS
Accelerometer Amplifier with DC Servo
C1 1250pF R1 R2 100M 18k C2 R3 2µF 2k R4 2 20M – 1 1/2 LT1464 R5 + 3 20M 5V TO 15V ACCELEROMETER C3 B & K MODEL 4381 2 – 7 2µF OR EQUIVALENT 6 (800) 442-1030 LT1793 OUTPUT 1793 TA03 3 + 4 R4C2 = R5C3 > R1 (1 + R2/R3) C1 OUTPUT = 0.8mV/pC* = 8.0mV/g** –5V TO –15V DC OUTPUT ≤ 1.9mV OUTPUT NOISE = 8nV/√ Hz AT 1kHz *PICOCOULOMBS **g = EARTH’S GRAVITATIONAL CONSTANT
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT1113 Low Noise, Dual JFET Op Amp Dual Version of LT1792, VNOISE = 4.5nV/√Hz LT1169 Low Noise, Dual JFET Op Amp Dual Version of LT1793, VNOISE = 6nV/√Hz, IB = 10pA LT1467 Micropower Dual JFET Op Amp 1MHz, 2pA Max IB, 200µA Max IS LT1792 Low Noise, Single JFET Op Amp Lower VNOISE Version of LT1793, VNOISE = 4.2nV/√Hz 1793f LT/TP 0599 4K • PRINTED IN USA 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com LINEAR TECHNOLOGY CORPORATION 1999
U TYPICAL APPLICATIONS N 10Hz Fourth Order Chebyshev Lowpass Filter (0.01dB Ripple)
R2 237k R5 154k R1 R3 15V C1 237k 249k 33nF 2 – 7 V R4 R6 C3 IN 154k 249k 6 2 – 10nF LT1793 C2 3 + 6 100nF C4 LT1793 VOUT 4 330nF 3 + 1793 TA04 –15V TYPICAL OFFSET ≈ 0.8mV 1% TOLERANCES FOR VIN = 10VP-P, VOUT = –121dB AT f > 330Hz = – 6dB AT f = 16.3Hz LOWER RESISTOR VALUES WILL RESULT IN LOWER THERMAL NOISE AND LARGER CAPACITORS
Accelerometer Amplifier with DC Servo
C1 1250pF R1 R2 100M 18k C2 R3 2µF 2k R4 2 20M – 1 1/2 LT1464 R5 + 3 20M 5V TO 15V ACCELEROMETER C3 B & K MODEL 4381 2 – 7 2µF OR EQUIVALENT 6 (800) 442-1030 LT1793 OUTPUT 1793 TA03 3 + 4 R4C2 = R5C3 > R1 (1 + R2/R3) C1 OUTPUT = 0.8mV/pC* = 8.0mV/g** –5V TO –15V DC OUTPUT ≤ 1.9mV OUTPUT NOISE = 8nV/√ Hz AT 1kHz *PICOCOULOMBS **g = EARTH’S GRAVITATIONAL CONSTANT
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT1113 Low Noise, Dual JFET Op Amp Dual Version of LT1792, VNOISE = 4.5nV/√Hz LT1169 Low Noise, Dual JFET Op Amp Dual Version of LT1793, VNOISE = 6nV/√Hz, IB = 10pA LT1467 Micropower Dual JFET Op Amp 1MHz, 2pA Max IB, 200µA Max IS LT1792 Low Noise, Single JFET Op Amp Lower VNOISE Version of LT1793, VNOISE = 4.2nV/√Hz 1793f LT/TP 0599 4K • PRINTED IN USA 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com LINEAR TECHNOLOGY CORPORATION 1999