LTC1992 Family
6
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
). Typical values are at T
A
= 25°C. Specifications apply to the
LTC1992-5 only.
SYMBOL PARAMETER CONDITIONS
LTC1992-5CMS8
LTC1992-5ISM8 LTC1992-5HMS8
UNITSMIN TYP MAX MIN TYP MAX
G
DIFF
Differential Gain
Differential Gain Error
Differential Gain Nonlinearity
Differential Gain Temperature Coefficient
l
l
5
±0.1
50
3.5
±0.3
5
±0.1
50
3.5
±0.35
V/V
%
ppm
ppm/°C
e
n
Input Referred Noise Voltage Density (Note 7) f = 1kHz 45 45 nV/√Hz
R
IN
Input Resistance, Single-Ended +IN, –IN Pins
l
22.5 30 37.5 22 30 38 kΩ
V
INCMR
Input Signal Common Mode Range V
S
= 5V –0.1V to 3.9V –0.1V to 3.9V V
CMRR Common Mode Rejection Ratio
(Amplifier Input Referred) (Note 7)
V
INCM
= –0.1V to 3.7V
l
55 60 55 60 dB
SR Slew Rate (Note 4)
l
0.7 2 0.7 2 V/μs
GBW Gain-Bandwidth Product f
TEST
= 180kHz 4 4 MHz
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
).
Typical values are at T
A
= 25°C. Specifications apply to the LTC1992-10 only.
SYMBOL PARAMETER CONDITIONS
LTC1992-10CMS8
LTC1992-10ISM8 LTC1992-10HMS8
UNITSMIN TYP MAX MIN TYP MAX
G
DIFF
Differential Gain
Differential Gain Error
Differential Gain Nonlinearity
Differential Gain Temperature Coefficient
l
l
10
±0.1
50
3.5
±0.3
10
±0.1
50
3.5
±0.35
V/V
%
ppm
ppm/°C
e
n
Input Referred Noise Voltage Density (Note 7) f = 1kHz 45 45 nV/√Hz
R
IN
Input Resistance, Single-Ended +IN, –IN Pins
l
11.3 15 18.8 11 15 19 kΩ
V
INCMR
Input Signal Common Mode Range V
S
= 5V –0.1V to 3.8V –0.1V to 3.8V V
CMRR Common Mode Rejection Ratio
(Amplifier Input Referred) (Note 7)
V
INCM
= –0.1V to 3.7V
l
55 60 55 60 dB
SR Slew Rate (Note 4)
l
0.7 2 0.7 2 V/μs
GBW Gain-Bandwidth Product f
TEST
= 180kHz 4 4 MHz
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Output load is connected to the midpoint of the +V
S
and –V
S
potentials. Measurement is taken single-ended, one output loaded at a
time.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum when the output is shorted indefinitely.
Note 4: Differential output slew rate. Slew rate is measured single ended
and doubled to get the listed numbers.
Note 5: The LTC1992C/LTC1992-XC/LTC1992I/LTC1992-XI are guaranteed
functional over an operating temperature of –40°C to 85°C. The
LTC1992H/LTC1992-XH are guaranteed functional over the extended
operating temperature of –40°C to 125°C.
Note 6: The LTC1992C/LTC1992-XC are guaranteed to meet the specified
performance limits over the 0°C to 70°C temperature range and are
designed, characterized and expected to meet the specified performance
limits over the –40°C to 85°C temperature range but are not tested or QA
sampled at these temperatures. The LTC1992I/LTC1992-XI are guaranteed
to meet the specified performance limits over the –40°C to 85°C
temperature range. The LTC1992H/LTC1992-XH are guaranteed to meet the
specified performance limits over the –40°C to 125°C temperature range.
Note 7: Differential offset voltage, differential offset voltage drift, CMRR,
noise voltage density and PSRR are referred to the internal amplifier’s
input to allow for direct comparison of gain blocks with discrete amplifiers.
