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參數(shù)資料
| 型號： | LBPC |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Precision, 100uA Gain Selectable Amplifier |
| 中文描述： | 精密，100uA的可選增益放大器 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 352K |
| 代理商： | LBPC |
LT1996
1
1996f
RESISTOR MATCHING (%)
P
0.04
1996 TA01b
–0.02
0
0.02
40
35
30
25
20
15
10
5
0
–0.04
LT1996A
G = 81
TYPICAL APPLICATIO
U
FEATURES
■
Pin Configurable as a Difference Amplifier,
Inverting and Noninverting Amplifier
■
Difference Amplifier
Gain Range 9 to 117
CMRR >80dB
■
Noninverting Amplifier
Gain Range 0.008 to 118
■
Inverting Amplifier
Gain Range –0.08 to –117
■
Gain Error: <0.05%
■
Gain Drift: < 3ppm/
°
C
■
Wide Supply Range: Single 2.7V to Split
±
18V
■
Micropower Operation: 100
μ
A Supply
■
Input Offset Voltage: 50
μ
V (Max)
■
Gain Bandwidth Product: 560kHz
■
Rail-to-Rail Output
■
Space Saving 10-Lead MSOP and DFN Packages
Precision, 100
μ
A
Gain Selectable Amplifier
The LT
1996 combines a precision operational amplifier
with eight precision resistors to form a one-chip solution
for accurately amplifying voltages. Gains from –117 to
118 with a gain accuracy of 0.05% can be achieved without
any external components. The device is particularly well
suited for use as a difference amplifier, where the excellent
resistor matching results in a common mode rejection
ratio of greater than 80dB.
The amplifier features a 50
μ
V maximum input offset
voltage and a gain bandwidth product of 560kHz. The
device operates from any supply voltage from 2.7V to 36V
and draws only 100
μ
A supply current on a 5V supply. The
output swings to within 40mV of either supply rail.
The internal resistors have excellent matching character-
istics; variation is 0.05% over temperature with a guaran-
teed matching temperature coefficent of less than 3ppm/
°
C.
The resistors are also extremely stable over voltage,
exhibiting a nonlinearity of less than 10ppm.
The LT1996 is fully specified at 5V and
±
15V supplies and
from –40
°
C to 85
°
C. The device is available in space
saving 10-lead MSOP and DFN packages. For an amplifier
with selectable gains from –13 to 14, see the LT1991 data
sheet.
DESCRIPTIOU
APPLICATIU
Rail-to-Rail Gain = 9 Difference Amplifier
Distribution of Resistor Matching
–
+
15V
–15V
V
IN
V
M(IN)
V
P(IN)
–
+
V
= V
+ 9
V
IN
SWING 40mV TO
EITHER RAIL
INPUT RANGE
±
60V
R
IN
= 100k
LT1996
450k
1996 TA01
450k/81
450k/81
450k/27
450k/27
450k/9
450k
450k/9
4pF
4pF
V
REF
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Patents Pending.
■
Handheld Instrumentation
■
Medical Instrumentation
■
Strain Gauge Amplifiers
■
Differential to Single-Ended Conversion
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