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LT1457CN8 Datasheet

  • LT1457CN8

  • Dual, Precision JFET Input Op Amp

  • 8頁(yè)

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LT1457
Dual, Precision
JFET Input Op Amp
FEATURES
s
s
s
s
s
s
s
s
DESCRIPTION
The LT1457 is a dual, JFET input op amp optimized for
handling large capacitive loads in combination with preci-
sion performance.
Precision specifications include 220碌V offset voltage in
plastic and surface mount packages. At 70擄C input bias
current is 50pA, input offset current is 20pA. Channel
separation is 130dB.
Other dual JFET input op amps from Linear Technology
include the LT1057, which is three times faster than the
LT1457 but at the expense of significantly lower capacitive
load handling capability; and the LT1113 with 4.5nV/鈭欻z
voltage noise.
Handles 10,000pF Capacitive Load
450碌V Max Offset Voltage
1200碌V Max Offset Voltage in S8 Package
50pA Bias Current at 70擄C
13nV/鈭欻z Voltage Noise
4V/碌s Slew Rate
4碌V/擄C Drift
130dB Channel Separation
APPLICATIONS
s
s
s
s
Sample-and-Hold (Drives Large Hold Capacitors)
A/D and D/A Converters
Photodiode Amplifiers
Voltage-to-Frequency Converters
TYPICAL PERFORMANCE CHARACTERISTICS
Capacitive Load Handling
100
V
S
= 鹵15V
T
A
= 25擄C
A
V
= +1
PERCENT OF UNITS
21
18
15
12
9
6
3
0
0.1
0
鈥?.0 鈥?.8 鈥?.6 鈥?.4 鈥?.2 0 0.2 0.4 0.6 0.8 1.0
INPUT OFFSET VOLTAGE (mV)
LT1457 鈥?TA02
Input Offset Voltage Distribution
S8 Package
V
S
=
鹵15V
T
A
= 25擄C
400 DUALS
(800 OP AMPS)
TESTED FROM
3 RUNS
80
OVERSHOOT (%)
60
40
20
1
10
CAPACITIVE LOAD (nF)
100
LT11457鈥?TA01
U
U W
U
1

LT1457CN8 產(chǎn)品屬性

  • LT1457

  • 50

  • 集成電路 (IC)

  • Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

  • -

  • J-FET

  • 2

  • -

  • 4 V/µs

  • 1.7MHz

  • -

  • 7pA

  • 200µV

  • 1.8mA

  • -

  • ±4.5 V ~ 18 V

  • 0°C ~ 70°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

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