參數(shù)資料
型號(hào): LT1457S8#PBF
廠商: Linear Technology
文件頁(yè)數(shù): 1/8頁(yè)
文件大?。?/td> 0K
描述: IC PREC OP-AMP JFET DUAL 8-SOIC
標(biāo)準(zhǔn)包裝: 100
放大器類(lèi)型: J-FET
電路數(shù): 2
轉(zhuǎn)換速率: 4 V/µs
增益帶寬積: 1.7MHz
電流 - 輸入偏壓: 7pA
電壓 - 輸入偏移: 220µV
電流 - 電源: 1.8mA
電壓 - 電源,單路/雙路(±): ±4.5 V ~ 18 V
工作溫度: 0°C ~ 70°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SO
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1318 (CN2011-ZH PDF)
1
LT1457
s
Handles 10,000pF Capacitive Load
s
450
V Max Offset Voltage
s
1200
V Max Offset Voltage in S8 Package
s
50pA Bias Current at 70
°C
s
13nV/
√Hz Voltage Noise
s
4V/
s Slew Rate
s
4
V/°C Drift
s
130dB Channel Separation
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
V offset voltage in
plastic and surface mount packages. At 70
°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/
√Hz
voltage noise.
Dual, Precision
JFET Input Op Amp
FEATURES
DESCRIPTION
U
VS = ±15V
TA = 25°C
AV = +1
CAPACITIVE LOAD (nF)
0
20
60
40
80
100
OVERSHOOT
(%)
100
LT11457 TA01
0.1
1
10
Capacitive Load Handling
Input Offset Voltage Distribution
S8 Package
s
Sample-and-Hold (Drives Large Hold Capacitors)
s
A/D and D/A Converters
s
Photodiode Amplifiers
s
Voltage-to-Frequency Converters
APPLICATIONS
U
TYPICAL PERFORMANCE CHARACTERISTICS
UW
INPUT OFFSET VOLTAGE (mV)
0
3
6
9
15
12
18
21
PERCENT
OF
UNITS
1.0
LT1457 TA02
–1.0
–0.6
–0.2
0.6
0.2
–0.8
–0.4
0
0.8
0.4
VS = ±15V
TA = 25°C
400 DUALS
(800 OP AMPS)
TESTED FROM
3 RUNS
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