LT1990
4
1990fb
3V/5V ELECTRICAL CHARACTERISTICS
The
● denotes the specifications which apply over the temperature range of 0
°C ≤ TA ≤ 70°C. VS = 3V, 0V; VS = 5V, 0V; RL = 10k,
VCM = VREF = half supply, G = 1, 10, unless otherwise noted. (Notes 4, 6)
The
● denotes the specifications which apply over the temperature range of –40
°C ≤ TA ≤ 85°C. VS = 3V, 0V; VS = 5V, 0V; RL = 10k,
VCM = VREF = half supply, G = 1, 10, unless otherwise noted. (Notes 4, 6)
LT1990C/LT1990I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOS
Input Offset Voltage, RTI
VS = 3V, 0V
G = 1, 10
●
4.1
mV
VS = 5V, 0V
G = 1, 10
●
4.1
mV
VOS/T
Input Offset Voltage Drift, RTI
(Note 10)
●
522
V/°C
VOSH
Input Offset Voltage Hysteresis, RTI
(Note 11)
●
230
V
PSRR
Power Supply Rejection Ratio, RTI
VS = 2.7V to 12.7V
VCM = VREF = 1.25V
G = 1, 10
●
78
dB
Minimum Supply Voltage
Guaranteed by PSRR
●
2.7
V
IS
Supply Current
(Note 8)
●
150
A
VOL
Output Voltage Swing LOW
–IN = V+, +IN = Half Supply (Note 8)
●
60
mV
VOH
Output Voltage Swing HIGH
–IN = 0V, +IN = Half Supply
VS = 3V, 0V, Below V+
●
180
mV
VS = 5V, 0V, Below V+
●
205
mV
ISC
Output Short-Circuit Current
Short to GND (Note 9)
●
3mA
Short to V+ (Note 9)
●
11
mA
LT1990C/LT1990I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
G
Gain Error
VOUT = 0.5V to (+VS) – 0.75V
LT1990, G = 1
●
0.67
%
LT1990A, G = 1
●
0.35
%
G = 10
●
0.95
%
G/T
Gain vs Temperature
G = 1 (Note 10)
●
2
10
ppm/
°C
G = 10 (Note 10)
●
7
20
ppm/
°C
VCM
Input Voltage Range
Guaranteed by CMRR
VS = 3V, 0V, VREF = 1.25V
●
–5
25
V
VS = 5V, 0V, VREF = 1.25V
●
–5
80
V
VS = 5V, 0V, VREF = 2.5V
●
–37
48
V
CMRR
Common Mode Rejection Ratio, RTI
VS = 3V, 0V (Note 7)
VCM = –5V to 25V, VREF = 1.25V
LT1990
●
57
dB
LT1990A
●
67
dB
VS = 5V, 0V
VCM = –5V to 80V, VREF = 1.25V
LT1990
●
57
dB
LT1990A
●
67
dB
VS = 5V, 0V (Note 7)
VCM = –38V to 47V, VREF = 2.5V
LT1990
●
57
dB
LT1990A
●
67
dB