參數(shù)資料
型號: LT1078AM
廠商: Linear Technology Corporation
元件分類: 通用總線功能
英文描述: Synchronous 4-Bit Binary Counters 16-SOIC 0 to 70
中文描述: 微功耗,雙核和四,單電源,精密運(yùn)算放大器
文件頁數(shù): 13/20頁
文件大小: 514K
代理商: LT1078AM
13
LT1078/LT1079
TYPICAL APPLICATIO
N
S
Micropower, 10ppm/
°
C,
±
5V Reference
Gain of 10 Difference Amplifier
+
+
2M
220k
120k
3
2
1
8
4
1/2 LT1078
9V
5.000V
OUT
1M
6
5
7
LT1034BC-1.2
510k
1M
–5.000V
OUT
–9V
510k
1%
20k
160k
1%
1/2 LT1078
SUPPLY CURRENT = 9V BATTERY = 115
μ
A
–9V BATTERY = 85
μ
A
OUTPUT NOISE = 36
μ
V
P-P
, 0.1Hz TO 10Hz
THE LT1078 CONTRIBUTES LESS THAN 3% OF THE TOTAL OUTPUT NOISE AND
DRIFT WITH TIME AND TEMPERATURE. THE ACCURACY OF THE –5V OUTPUT
DEPENDS ON THE MATCHING OF THE TWO 1M RESISTORS
LT1078/79 TA03
+
1M
1M
10M
OUTPUT
0.0035V TO 2.4V
1/2 LT1078
BANDWIDTH 20kHz
OUTPUT OFFSET 0.7mV
OUTPUT NOISE 80
μ
V
P-P
(0.1Hz TO 10Hz)
260
μ
V
RMS
OVER FULL
BANDWIDTH
THE USEFULNESS OF DIFFERENCE AMPLIFIERS IS LIMITED BY
THE FACT THAT THE INPUT RESISTANCE IS EQUAL TO THE SOURCE
RESISTANCE. THE PICOAMPERE OFFSET CURRENT AND LOW
CURRENT NOISE OF THE LT1078 ALLOWS THE USE OF 1M SOURCE
RESISTORS WITHOUT DEGRADATION IN PERFORMANCE. IN ADDITION,
WITH MEGOHM RESISTORS MICROPOWER OPERATION CAN BE MAINTAINED
LT1078/79 TA04
–IN
+IN
10M
3V
Picoampere Input Current, Triple Op Amp Instrumentation Amplifier with Bias Current Cancellation
+
9
10
8
1/4 LT1079
+
+
+
R2
1M
R2
1M
1/4 LT1079
1/4 LT1079
1/4 LT1079
3
2
1
R1
1M
R1
1M
R
200k
6
5
7
12
13
14
R3
9.1M
R3
9.1M
9V
4
11
2R
20M
OUTPUT
4mV TO 8.2V
R
10M
2R
20M
–IN
+IN
GAIN = 1 +
(
)
2R1
R
G
R3
LT`1078/79 TA05
INPUT BIAS CURRENT TYPICALLY < 150pA
INPUT RESISTANCE = 3R = 30M FOR VALUES SHOWN
NEGATIVE COMMON MODE LIMIT = (I
B
)(2R) + 20mV
140mV
GAIN BANDWIDTH PRODUCT = 1.8MHz
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