LT1990
3
1990fb
3V/5V ELECTRICAL CHARACTERISTICS
VS = 3V, 0V; VS = 5V, 0V; RL = 10k, VCM = VREF = half supply, G = 1, 10, TA = 25°C, unless otherwise noted. (Note 6)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOS
Offset Voltage, RTI
G = 1, 10
0.8
3
mV
en
Input Noise Voltage, RTI
fO = 0.1Hz to 10Hz
22
VP-P
Noise Voltage Density, RTI
fO = 1kHz
1
V/√Hz
RIN
Input Resistance
Differential
2
M
Common Mode
0.5
M
PSRR
Power Supply Rejection Ratio, RTI
VS = 2.7V to 12.7V, VCM = VREF = 1.25V
80
92
dB
Minimum Supply Voltage
Guaranteed by PSRR
2.4
2.7
V
IS
Supply Current
(Note 8)
105
120
A
VOL
Output Voltage Swing LOW
–IN = V+, +IN = Half Supply (Note 8)
30
50
mV
VOH
Output Voltage Swing HIGH
–IN = 0V, +IN = Half Supply
VS = 3V, 0V, Below V+
100
150
mV
VS = 5V, 0V, Below V+
120
175
mV
ISC
Output Short-Circuit Current
Short to GND (Note 9)
4
8
mA
Short to V+ (Note 9)
13
20
mA
BW
Bandwidth (–3dB)
G = 1
100
kHz
G = 10
6.5
kHz
SR
Slew Rate
G = 1, VS = 5V, 0V, VOUT = 0.5V to 4.5V
0.5
V/
s
Settling Time to 0.01%
4V Step, G = 1, VS = 5V, 0V
45
s
AVREF
Reference Gain to Output
G = 1
1
± 0.0007
G = 10
1
± 0.007
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)
LT1990C/LT1990I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
G
Gain Error
VOUT = 0.5V to (+VS) – 0.75V
LT1990, G = 1
●
0.65
%
LT1990A, G = 1
●
0.33
%
G = 10
●
0.90
%
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
●
58
dB
LT1990A
●
68
dB
VS = 5V, 0V
VCM = –5V to 80V, VREF = 1.25V
LT1990
●
58
dB
LT1990A
●
68
dB
VS = 5V, 0V (Note 7)
VCM = –38V to 47V, VREF = 2.5V
LT1990
●
58
dB
LT1990A
●
68
dB