LT1793CS8#PBF Linear Technology, LT1793CS8#PBF Datasheet

IC PREC OPAMP JFET LOWNOIS 8SOIC

LT1793CS8#PBF

Manufacturer Part Number
LT1793CS8#PBF
Description
IC PREC OPAMP JFET LOWNOIS 8SOIC
Manufacturer
Linear Technology
Datasheet

Specifications of LT1793CS8#PBF

Amplifier Type
J-FET
Number Of Circuits
1
Slew Rate
3.4 V/µs
Gain Bandwidth Product
4.2MHz
Current - Input Bias
4pA
Voltage - Input Offset
250µV
Current - Supply
4.2mA
Voltage - Supply, Single/dual (±)
±4.5 V ~ 20 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Current - Output / Channel
-
-3db Bandwidth
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT1793CS8#PBFLT1793CS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LT1793CS8#PBF
Manufacturer:
LTC
Quantity:
1 588
Company:
Part Number:
LT1793CS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
, LTC and LT are registered trademarks of Linear Technology Corporation.
Input Bias Current, Warmed Up: 10pA Max
100% Tested Low Voltage Noise: 8nV/ Hz Max
A Grade 100% Temperature Tested
Offset Voltage Over Temp: 1mV Max
Input Resistance: 10
Very Low Input Capacitance: 1.5pF
Voltage Gain: 1 Million Min
Gain-Bandwidth Product: 4.2MHz Typ
Guaranteed Specifications with 5V Supplies
Photocurrent Amplifiers
Hydrophone Amplifiers
High Sensitivity Piezoelectric Accelerometers
Low Voltage and Current Noise Instrumentation
Amplifier Front Ends
Two and Three Op Amp Instrumentation Amplifiers
Active Filters
(908) 231-0960
HAMAMATSU
S1336-5BK
1N914
C
2N3904
D
U
D2
Low Noise Light Sensor with DC Servo
V
13
R5
10k
R4
1k
2
3
1N914
+
R2C2 > C1R1
C
V
330mV/ WATT FOR 633nm WAVE LENGTH
D1
D
OUT
LT1793
= PARASITIC PHOTODIODE CAPACITANCE
U
= 100mV/ WATT FOR 200nm WAVE LENGTH
V
V
R3
1k
+
7
4
6
2pF
C1
LT1097
V
V
+
C2 0.022 F
+
1M
R1
1793 TA01
100k
R2
DESCRIPTIO
The LT
noise performance for a JFET op amp. For the first time low
voltage noise (6nV/ Hz) is simultaneously offered with
extremely low current noise (0.8fA/ Hz), providing the
lowest total noise for high impedance transducer applica-
tions. Unlike most JFET op amps, the very low input bias
current (3pA typ) is maintained over the entire common
mode range which results in an extremely high input resis-
tance (10
pacitance (1.5pF) an extremely high input impedance
results, making the LT1793 the first choice for amplifying
low level signals from high impedance transducers. The
low input capacitance also assures high gain linearity when
buffering AC signals from high impedance transducers.
The LT1793 is unconditionally stable for gains of 1 or more,
even with 1000pF capacitive loads. Other key features are
250 V V
vidual amplifier is 100% tested for voltage noise, slew rate
(3.4V/ s) and gain-bandwidth product (4.2MHz).
Specifications at 5V supply operation are also provided.
For an even lower voltage noise please see the LT1792 data
sheet.
Picoampere Bias Current,
V
OUT
®
1793 achieves a new standard of excellence in
OS
13
and a voltage gain over 4 million. Each indi-
). When combined with a very low input ca-
JFET Input Op Amp
10k
100
1k
10
1
U
100
Density vs Source Resistance
V
1kHz Output Voltage Noise
N
V
R
N
SOURCE
1k
+
= (V
SOURCE
RESISTANCE
ONLY
SOURCE RESISTANCE ( )
10k 100k
OP AMP
)
V
2
N
+ 4kTR
Low Noise,
1M
S
10M
+ 2qI
T
V
A
S
B
100M 1G
= 25 C
= 15V
R
S
1793 TA02
2
LT1793
1

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LT1793CS8#PBF Summary of contents

Page 1

... Hydrophone Amplifiers High Sensitivity Piezoelectric Accelerometers Low Voltage and Current Noise Instrumentation Amplifier Front Ends Two and Three Op Amp Instrumentation Amplifiers Active Filters , LTC and LT are registered trademarks of Linear Technology Corporation. U TYPICAL APPLICATIO Low Noise Light Sensor with DC Servo 2 – LT1793 ...

Page 2

LT1793 BSOLUTE Supply Voltage ..................................................... 20V Differential Input Voltage ...................................... 40V Input Voltage (Equal to Supply Voltage) ............... 20V Output Short-Circuit Duration ........................ Indefinite Operating Temperature Range ............... – ...

Page 3

ELECTRICAL C HARA TERISTICS C SYMBOL PARAMETER A Large-Signal Voltage Gain VOL V Output Voltage Swing OUT SR Slew Rate GBW Gain-Bandwidth Product I Supply Current S Offset Voltage Adjustment Range The denotes specifications which apply over the temperature range ...

Page 4

LT1793 ELECTRICAL C HARA TERISTICS C – 15V 0V, unless otherwise noted. (Notes SYMBOL PARAMETER V Input Offset Voltage OS V Average Input Offset OS Temp ...

Page 5

W U TYPICAL PERFOR A 0.1Hz to 10Hz Voltage Noise TIME (SEC) 1793 G01 Voltage Noise vs Chip Temperature 15V –75 –50 ...

Page 6

LT1793 W U TYPICAL PERFOR A Small-Signal Transient Response 1793 G10 s/DIV 10pF 15V Capacitive Load Handling 15V ...

Page 7

W U TYPICAL PERFOR A Short-Circuit Output Current vs Temperature 15V SINK SOURCE 100 – 75 – 50 – 125 TEMPERATURE ( C) 1793 G19 ...

Page 8

LT1793 PPLICATI I FOR ATIO A S with temperature will occur when the device is nulled with a potentiometer ranging from 10k to 200k. Finer adjust- ments can be made with resistors in series with the potentiometer ...

Page 9

PPLICATI S I FOR ATIO resulting in a change in voltage dV, which is equal to dQ/C The gain therefore For unity-gain, the equal the transducer capacitance plus the ...

Page 10

LT1793 PACKAGE DESCRIPTIO 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) ...

Page 11

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... Dual Version of LT1792, V Dual Version of LT1793, V 1MHz, 2pA Max I Lower V NOISE C3 10nF – LT1793 OUT + 1793 TA04 OUTPUT 1793 TA03 = 4.5nV/ Hz NOISE = 6nV/ Hz 10pA NOISE B , 200 A Max Version of LT1793 4.2nV/ Hz NOISE 1793f LT/TP 0599 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1999 ...

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