參數(shù)資料
型號(hào): LT1124ACN8#PBF
廠商: Linear Technology
文件頁(yè)數(shù): 4/20頁(yè)
文件大?。?/td> 0K
描述: IC OP-AMP LOW NOISE DUAL 8-DIP
標(biāo)準(zhǔn)包裝: 50
放大器類(lèi)型: 通用
電路數(shù): 2
轉(zhuǎn)換速率: 4.5 V/µs
增益帶寬積: 12.5MHz
電流 - 輸入偏壓: 5nA
電壓 - 輸入偏移: 20µV
電流 - 電源: 2.3mA
電壓 - 電源,單路/雙路(±): ±4 V ~ 18 V
工作溫度: 0°C ~ 70°C
安裝類(lèi)型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 8-PDIP
包裝: 管件
LT1124/LT1125
12
11245ff
For more information www.linear.com/LT1124
perForMance coMparison
Typical applicaTions
+
OUTPUT
1124/25 TA03
365
1%
INPUT
15k
5%
340k
1%
20k
TRIM
15V
1/2 LT1124
–15V
RN60C FILM RESISTORS
THE HIGH GAIN AND WIDE BANDWIDTH OF THE LT1124/LT1125, IS USEFUL IN LOW
FREQUENCY HIGH CLOSED-LOOP GAIN AMPLIFIER APPLICATIONS. A TYPICAL
PRECISION OP AMP MAY HAVE AN OPEN-LOOP GAIN OF ONE MILLION WITH 500kHz
BANDWIDTH. AS THE GAIN ERROR PLOT SHOWS, THIS DEVICE IS CAPABLE OF 0.1%
AMPLIFYING ACCURACY UP TO 0.3Hz ONLY. EVEN INSTRUMENTATION RANGE
SIGNALS CAN VARY AT A FASTER RATE. THE LT1124/LT1125 “GAIN PRECISION —
BANDWIDTH PRODUCT” IS 75 TIMES HIGHER, AS SHOWN.
FREQUENCY (Hz)
GAIN
ERROR
(PERCENT)
0.01
0.1
1.0
0.1
10
100
1124/25 TA04
0.001
1
GAIN ERROR = CLOSED-LOOP GAIN
OPEN-LOOP GAIN
TYPICAL
PRECISION
OP AMP
LT1124/LT1125
Gain 1000 Amplifier with 0.01% Accuracy, DC to 1Hz
Gain Error vs Frequency Closed-Loop Gain = 1000
Table2summarizestheperformanceoftheLT1124/LT1125
compared to the low cost grades of alternate approaches.
The comparison shows how the specs of the LT1124/
LT1125 not only stand up to the industry standard OP-27,
but in most cases are superior. Normally dual and quad
performance is degraded when compared to singles, for
the LT1124/LT1125 this is not the case.
Table 2. Guaranteed Performance, VS = ±15V, TA = 25°C, Low Cost Devices
PARAMETER/UNITS
LT1124CN8
LT1125CN
OP-27 GP
OP-270 GP
OP-470 GP
UNITS
Voltage Noise, 1kHz
4.2
100% Tested
4.5
Sample Tested
No Limit
5.0
Sample Tested
nV/√Hz
Slew Rate
2.7
100% Tested
1.7
Not Tested
1.7
1.4
V/s
Gain-Bandwidth Product
8.0
100% Tested
5.0
Not Tested
No Limit
No Limit
MHz
Offset Voltage
LT1124
LT1125
100
140
100
250
1000
V
Offset Current
LT1124
LT1125
20
30
75
20
30
nA
Bias Current
30
80
60
nA
Supply Current/Amp
2.75
5.67
3.25
2.75
mA
Voltage Gain, RL = 2k
1.5
0.7
0.35
0.4
V/V
Common Mode Rejection Ratio
106
100
90
100
dB
Power Supply Rejection Ratio
110
94
104
105
dB
SO-8 Package
Yes – LT1124
Yes
No
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