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參數(shù)資料
| 型號(hào)： | LT1457S8#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 4/8頁 |
| 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)品目錄頁面： | 1318 (CN2011-ZH PDF) |
4
LT1457
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
VS = ±15V
VCM = 0V
WARMED UP
AMBIENT TEMPERATURE (
°C)
3
10
30
100
300
1000
INPUT
BIAS
AND
OFFSET
CURRENT
(pA)
100
LT1457 TPC01
025
50
75
BIAS CURRENT
OFFSET CURRENT
Input Bias and Offset Current vs
Temperature
VS = ±15V
TA = 25°C
N8 PACKAGE
S8 PACKAGE
TIME AFTER POWER ON (MINUTES)
0
60
30
120
90
150
CHANGE
IN
OFFSET
VOLTAGE
(
V)
5
LT1457 TPC03
01234
Warm-Up Drift
VS = ±15V
TA = 70°C
TA = 25°C
COMMON-MODE INPUT VOLTAGE (V)
–20
20
0
60
40
80
120
140
100
160
INPUT
BIAS
CURRENT
(pA)
15
LT1457 TPC02
–15
–10
–5
0
5
10
Input Bias Current Over
the Common-Mode Range
Input Offset Voltage Distribution
N8 Package
Long Term Drift of
Representative Units
Voltage Gain vs Temperature
VS = ±15V
VO = ±10V
RL = 2k
RL = 1k
TEMPERATURE (
°C)
10
100
30
1000
300
VOLTAGE
GAIN
(V/mV)
100
75
LT1457 TPC05
–50
25
–25
50
0
VS = ±15V
TA = 25°C
TIME (MONTHS)
–50
–30
–10
10
30
50
OFFSET
VOLTAGE
CHANGE
(
V)
5
–40
–20
0
20
40
LT1457 TPC06
012
4
3
0.1Hz to 10Hz Noise
Voltage Noise vs Frequency
Channel Separation vs Frequency
FREQUENCY (Hz)
10
30
50
70
20
100
RMS
VOLTAGE
NOISE
DENSITY
(nV/
√
Hz)
10k
LT1457 TPC07
3
10
30
100
300
1k
3k
1/f CORNER = 28Hz
VS = ±15V
TA = 25°C
VS = ±15V
TA = 25°C
TIME (SECONDS)
NOISE
VOLTAGE
(1
V/DIV)
10
LT1457 TPC08
024
8
6
FREQUENCY (Hz)
60
100
80
140
120
160
CHANNEL
SEPARATION
(dB)
1M
LT1457 TPC09
1
10
100
1k
10k
100k
VS = ±15V
TA = 25°C
VIN = 20VP-P TO 5kHz
RL = 2k
LIMITED BY
THERMAL
INTERACTION AT
DC = 132dB
LIMITED BY PIN TO
PIN CAPACITANCE
RS = 10
RS = 1k
INPUT OFFSET VOLTAGE (mV)
–0.8
PERCENT
OF
UNITS
12
15
18
0.8
LT1457 TPC04
9
6
0
–0.4
0
0.4
3
24
21
–0.6
–0.2
0.2
0.6
VS = ±15V
TA = 25°C
900 DUALS
(1800 OP AMPS)
TESTED FROM 3
RUNS
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