Datasheet

LTC1992 Family
4
1992fb
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. +V
S
= 5V, –V
S
= 0V, V
INCM
= V
OUTCM
= V
OCM
= 2.5V, unless otherwise
noted. V
OCM
is the voltage on the V
OCM
pin. V
OUTCM
is defined as (+V
OUT
+ –V
OUT
)/2. V
INCM
is defined as (+V
IN
+ –V
IN
)/2. V
INDIFF
is
defined as (+V
IN
– –V
IN
). V
OUTDIFF
is defined as (+V
OUT
– –V
OUT
). Specifications applicable to all parts in the LTC1992 family.
SYMBOL PARAMETER CONDITIONS
ALL C AND I GRADE ALL H GRADE
UNITSMIN TYP MAX MIN TYP MAX
I
SC
Output Short-Circuit Current
Sourcing (Notes 2,3)
V
S
= 2.7V, V
OUT
=1.35V
V
S
= 5V, V
OUT
= 2.5V
V
S
= ±5V, V
OUT
= 0V
l
l
l
20
20
20
30
30
30
20
20
20
30
30
30
mA
mA
mA
Output Short-Circuit Current Sinking
(Notes 2,3)
V
S
= 2.7V, V
OUT
=1.35V
V
S
= 5V, V
OUT
= 2.5V
V
S
= ±5V, V
OUT
= 0V
l
l
l
13
13
13
30
30
30
13
13
13
30
30
30
mA
mA
mA
A
VOL
Large-Signal Voltage Gain
l
80 80 dB
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
+V
S
= 5V, –V
S
= 0V, V
INCM
= V
OUTCM
= V
OCM
= 2.5V, unless otherwise noted. V
OCM
is the voltage on the V
OCM
pin. V
OUTCM
is defined
as (+V
OUT
+ –V
OUT
)/2. V
INCM
is defined as (+V
IN
+ –V
IN
)/2. V
INDIFF
is defined as (+V
IN
– –V
IN
). V
OUTDIFF
is defined as (+V
OUT
– –V
OUT
).
Specifications applicable to the LTC1992 only.
SYMBOL PARAMETER CONDITIONS
LTC1992CMS8
LTC1992ISM8 LTC1992HMS8
UNITSMIN TYP MAX MIN TYP MAX
I
B
Input Bias Current V
S
= 2.7V to ±5V
l
2 250 2 400 pA
I
OS
Input Offset Current V
S
= 2.7V to ±5V
l
0.1 100 0.1 150 pA
R
IN
Input Resistance
l
500 500 MΩ
C
IN
Input Capacitance
l
33pF
e
n
Input Referred Noise Voltage Density f = 1kHz 35 35 nV/√Hz
i
n
Input Noise Current Density f = 1kHz 1 1 fA/√Hz
V
INCMR
Input Signal Common Mode Range
l
(–V
S
) – 0.1V (+V
S
) – 1.3V (–V
S
) – 0.1V (+V
S
) – 1.3V V
CMRR Common Mode Rejection Ratio
(Input Referred)
V
INCM
= –0.1V to 3.7V
l
69 90 69 90 dB
SR Slew Rate (Note 4)
l
0.5 1.5 0.5 1.5 V/μs
GBW Gain-Bandwidth Product
(f
TEST
= 100kHz)
T
A
= 25°C
LTC1992CMS8
LTC1992IMS8/
LTC1992HMS8
l
l
3.0
2.5
1.9
3.2
3.0
3.5
4.0
4.0
3.0
1.9
3.2 3.5
4.0
MHz
MHz
MHz