參數(shù)資料
型號(hào): LT1990
廠商: Linear Technology Corporation
元件分類: 運(yùn)動(dòng)控制電子
英文描述: 250V Input Range G = 1, 10, Micropower, Difference Amplifier
中文描述: 250V輸入范圍增益\u003d 1,10,微功耗,差分放大器
文件頁(yè)數(shù): 3/16頁(yè)
文件大小: 222K
代理商: LT1990
LT1990
3
1990f
3V/5V ELECTRICAL CHARACTERISTICS
V
S
= 3V, 0V; V
S
= 5V, 0V; R
L
= 10k, V
CM
= V
REF
= half supply, G = 1, 10, T
A
= 25
°
C, unless otherwise noted. (Note 6)
SYMBOL
R
IN
PARAMETER
Input Resistance
CONDITIONS
Differential
Common Mode
V
S
= 2.7V to 12.7V, V
CM
= V
REF
= 1.25V
Guaranteed by PSRR
(Note 8)
–IN = V
+
,
+IN = Half Supply (Note 8)
–IN = 0V,
+IN = Half Supply
V
S
= 3V, 0V, Below V
+
V
S
= 5V, 0V, Below V
+
Short to GND (Note 9)
Short to V
+
(Note 9)
G = 1
G = 10
G = 1, V
S
= 5V, 0V, V
OUT
= 0.5V to 4.5V
4V Step, G = 1, V
S
= 5V, 0V
MIN
TYP
2
0.5
92
2.4
105
30
MAX
UNITS
M
M
PSRR
Power Supply Rejection Ratio, RTI
Minimum Supply Voltage
Supply Current
Output Voltage Swing LOW
Output Voltage Swing HIGH
80
dB
V
μ
A
mV
2.7
120
50
I
S
V
OL
V
OH
100
120
8
20
100
6.5
0.5
45
150
175
mV
mV
mA
mA
kHz
kHz
V/
μ
s
μ
s
I
SC
Output Short-Circuit Current
4
13
BW
Bandwidth (–3dB)
SR
Slew Rate
Settling Time to 0.01%
Reference Gain to Output
AV
REF
1
±
0.0007
The
denotes the specifications which apply over the temperature range of 0
°
C
T
A
70
°
C. V
S
= 3V, 0V; V
S
= 5V, 0V; R
L
= 10k,
V
CM
= V
REF
= half supply, G = 1, 10, unless otherwise noted. (Notes 4, 6)
SYMBOL
PARAMETER
CONDITIONS
G
Gain Error
V
OUT
= 0.5V to (+V
S
) – 0.75V
LT1990, G = 1
LT1990A, G = 1
G = 10
G/T
Gain vs Temperature
G = 1 (Note 10)
G = 10 (Note 10)
V
CM
Input Voltage Range
Guaranteed by CMRR
V
S
= 3V, 0V, V
REF
= 1.25V
V
S
= 5V, 0V, V
REF
= 1.25V
V
S
= 5V, 0V, V
REF
= 2.5V
CMRR
Common Mode Rejection Ratio, RTI
V
S
= 3V, 0V (Note 7)
V
CM
= –5V to 25V, V
REF
= 1.25V
LT1990
LT1990A
V
S
= 5V, 0V
V
CM
= –5V to 80V, V
REF
= 1.25V
LT1990
LT1990A
V
S
= 5V, 0V (Note 7)
V
CM
= –38V to 47V, V
REF
= 2.5V
LT1990
LT1990A
V
OS
Input Offset Voltage, RTI
V
S
= 3V, 0V
G = 1, 10
V
S
= 5V, 0V
G = 1, 10
MIN
TYP
MAX
UNITS
0.65
0.33
0.90
10
20
%
%
%
2
7
ppm/
°
C
ppm/
°
C
–5
–5
–37
25
80
48
V
V
V
58
68
dB
dB
58
68
dB
dB
58
68
dB
dB
4.1
mV
4.1
mV
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