LTC1992 Family
3
1992fb
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. +VS = 5V, –VS = 0V, VINCM = VOUTCM = VOCM = 2.5V, unless otherwise
noted. VOCM is the voltage on the VOCM pin. VOUTCM is defined as (+VOUT + –VOUT)/2. VINCM is defined as (+VIN + –VIN)/2. VINDIFF is
defined as (+VIN – –VIN). VOUTDIFF is defined as (+VOUT – –VOUT). Specifications applicable to all parts in the LTC1992 family.
SYMBOL
PARAMETER
CONDITIONS
ALL C AND I GRADE
ALL H GRADE
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
VS
Supply Voltage Range
l
2.7
11
2.7
11
V
IS
Supply Current
VS = 2.7V to 5V
VS = ±5V
l
0.65
0.75
0.7
0.8
1.0
1.2
1.5
0.65
0.8
0.7
0.9
1.0
1.5
1.2
1.8
mA
VOSDIFF
Differential Offset Voltage
(Input Referred) (Note 7)
VS = 2.7V
VS = 5V
VS = ±5V
l
±0.25
±2.5
±0.25
±4
mV
ΔVOSDIFF/ΔT Differential Offset Voltage Drift
(Input Referred) (Note 7)
VS = 2.7V
VS = 5V
VS = ±5V
l
10
μV/°C
PSRR
Power Supply Rejection Ratio
(Input Referred) (Note 7)
VS = 2.7V to ±5V
l
75
80
72
80
dB
GCM
Common Mode Gain(VOUTCM/VOCM)
Common Mode Gain Error
Output Balance (ΔVOUTCM/(ΔVOUTDIFF)VOUTDIFF = –2V to +2V
l
1
±0.1
–85
±0.3
–60
1
±0.1
–85
±0.35
–60
%
dB
VOSCM
Common Mode Offset Voltage
(VOUTCM – VOCM)
VS = 2.7V
VS = 5V
VS = ±5V
l
±0.5
±1
±2
±12
±15
±18
±0.5
±1
±2
±15
±17
±20
mV
ΔVOSCM/ΔT Common Mode Offset Voltage Drift
VS = 2.7V
VS = 5V
VS = ±5V
l
10
μV/°C
VOUTCMR
Output Signal Common Mode Range
(Voltage Range for the VOCM Pin)
l (–VS) + 0.5V
(+VS) – 1.3V (–VS) + 0.5V
(+VS) – 1.3V
V
RINVOCM
Input Resistance, VOCM Pin
l
500
MΩ
IBVOCM
Input Bias Current, VOCM Pin
VS = 2.7V to ±5V
l
±2
pA
VMID
Voltage at the VMID Pin
l
2.44
2.50
2.56
2.43
2.50
2.57
V
VOUT
Output Voltage, High
(Note 2)
VS = 2.7V, Load = 10k
VS = 2.7V, Load = 5mA
VS = 2.7V, Load = 10mA
l
2.60
2.50
2.29
2.69
2.61
2.52
2.60
2.50
2.29
2.69
2.61
2.52
V
Output Voltage, Low
(Note 2)
VS = 2.7V, Load = 10k
VS = 2.7V, Load = 5mA
VS = 2.7V, Load = 10mA
l
0.02
0.10
0.20
0.10
0.25
0.35
0.02
0.10
0.20
0.10
0.25
0.41
V
Output Voltage, High
(Note 2)
VS = 5V, Load = 10k
VS = 5V, Load = 5mA
VS = 5V, Load = 10mA
l
4.90
4.85
4.75
4.99
4.90
4.81
4.90
4.80
4.70
4.99
4.90
4.81
V
Output Voltage, Low
(Note 2)
VS = 5V, Load = 10k
VS = 5V, Load = 5mA
VS = 5V, Load = 10mA
l
0.02
0.10
0.20
0.10
0.25
0.35
0.02
0.10
0.20
0.10
0.30
0.42
V
Output Voltage, High
(Note 2)
VS = ±5V, Load = 10k
VS = ±5V, Load = 5mA
VS = ±5V, Load = 10mA
l
4.90
4.85
4.65
4.99
4.89
4.80
4.85
4.80
4.60
4.99
4.89
4.80
V
Output Voltage, Low
(Note 2)
VS = ±5V, Load = 10k
VS = ±5V, Load = 5mA
VS = ±5V, Load = 10mA
l
–4.99
–4.90
–4.80
–4.90
–4.75
–4.65
–4.98
–4.90
–4.80
–4.85
–4.75
–4.55
V