鈩?/div>
Very Low Input Capacitance: 1.5pF
Voltage Gain: 1 Million Min
Gain-Bandwidth Product: 4.2MHz Typ
Guaranteed Specifications with
鹵5V
Supplies
APPLICATIO S
s
s
s
s
s
s
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
, LTC and LT are registered trademarks of Linear Technology Corporation.
The LT
廬
1793 achieves a new standard of excellence in
noise performance for a JFET op amp. For the first time low
voltage noise (6nV/鈭欻z) is simultaneously offered with
extremely low current noise (0.8fA/鈭欻z), 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
13
鈩?.
When combined with a very low input ca-
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碌V V
OS
and a voltage gain over 4 million. Each indi-
vidual amplifier is 100% tested for voltage noise, slew rate
(3.4V/碌s) and gain-bandwidth product (4.2MHz).
Specifications at
鹵5V
supply operation are also provided.
For an even lower voltage noise please see the LT1792 data
sheet.
TYPICAL APPLICATIO
Low Noise Light Sensor with DC Servo
C1
2pF
TOTAL 1kHz VOLTAGE NOISE DENSITY (nV/鈭欻z)
10k
V
+
R3
1k
LT1097
2N3904
HAMAMATSU
S1336-5BK
(908) 231-0960
V
鈥?/div>
R5
10k
R4
1k
V
R2C2 > C1R1
C
D
= PARASITIC PHOTODIODE CAPACITANCE
V
OUT
= 100mV/碌WATT FOR 200nm WAVE LENGTH
330mV/碌WATT FOR 633nm WAVE LENGTH
鈥?/div>
鈥?/div>
C
D
D1
1N914
+
+
D2
1N914
3
鈥?/div>
2
7
LT1793
4
V
鈥?/div>
R1
1M
6
C2 0.022碌F
V
+
V
OUT
1k
100
R2
100k
10
1793 TA01
1
100
U
1kHz Output Voltage Noise
Density vs Source Resistance
鈥?/div>
+
R
SOURCE
V
N
U
U
V
N
SOURCE
RESISTANCE
ONLY
1k
T
A
= 25擄C
V
S
=
鹵15V
10k 100k 1M 10M 100M 1G
SOURCE RESISTANCE (鈩?
V
N
=
鈭?/div>
(V
OP AMP
)
2
+ 4kTR
S
+ 2qI
B
R
S2
1793 TA02
1
LT1793AIN8相關(guān)型號PDF文件下載
-
型號
版本
描述
廠商
下載
-
英文版
Seoul Semiconductor [Infrared LAMP LED]
SEOUL
-
英文版
No Rsense Synchronous Step-Up DC/DC Controller
Linear
-
英文版
Linear Hall-Effect Sensor
ETC
-
英文版
Single/Dual 4.5ns, 3V/5V, Rail-to-Rail Comparators
LINER
-
英文版
UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE
ETC
-
英文版
4.5ns, 3V/5V/?V, Rail-to-Rail Comparator
Linear
-
英文版
Single/Dual 4.5ns, 3V/5V, Rail-to-Rail Comparators
LINER
-
英文版
UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE
ETC
-
英文版
Dual, 4.5ns, 3V/5V/?V, Rail-to-Rail Comparator
Linear
-
英文版
4ns, 150MHz Dual Comparator with Independent Input/Output Su...
LINER
-
英文版
UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE
ETC
-
英文版
7ns, Low Power, 3V/5V/?V Rail-to-Rail Comparator
Linear
-
英文版
UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE
ETC
-
英文版
4ns, 150MHz Dual Comparator with Independent Input/Output Su...
LINER
-
英文版
7ns, Low Power, 3V/5V Dual Rail-to-Rail Comparator
Linear
-
英文版
7ns, Low Power, 3V/5V Dual Rail-to-Rail Comparator
Linear
-
英文版
4ns, 150MHz Dual Comparator with Independent Input/Output Su...
LINER
-
英文版
4ns, 150MHz Dual Comparator with Independent Input/Output Su...
Linear
-
英文版
SOT-23, 44V, Over-The-Top, Micropower, Precision Rail-to-Rai...
LINER
-
英文版
SOT-23, 44V, Over-the-Top, Micropower, Precision, Rail-to-Ra...
Linear
1
2
3
4
5
6
7
8
9
10
11
12
