LTC1992 Family
ELECTRICAL CHARACTERISTICS
The ● denotes 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). Typical values are at TA = 25°C. Specifications apply to the
LTC1992-5 only.
LTC1992-5CMS8
LTC1992-5IMS8
LTC1992-5HMS8
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
G
DIFF
Differential Gain
5
5
V/V
%
Differential Gain Error
●
●
±0.1
50
±0.3
±0.1 ±0.35
Differential Gain Nonlinearity
Differential Gain Temperature Coefficient
50
3.5
ppm
3.5
ppm/°C
e
Input Referred Noise Voltage Density (Note 7) f = 1kHz
Input Resistance, Single-Ended +IN, –IN Pins
45
30
45
nV/√Hz
kΩ
n
R
●
22.5
37.5
22
30
– 0.1V to 3.9V
60
38
IN
V
Input Signal Common Mode Range
V = 5V
S
– 0.1V to 3.9V
60
V
INCMR
CMRR
Common Mode Rejection Ratio
(Amplifier Input Referred) (Note 7)
V
= –0.1V to 3.7V
●
●
55
55
dB
INCM
SR
Slew Rate (Note 4)
0.7
2
4
0.7
2
4
V/µs
GBW
Gain-Bandwidth Product
f
= 180kHz
MHz
TEST
The ● denotes 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).
Typical values are at TA = 25°C. Specifications apply to the LTC1992-10 only.
LTC1992-10CMS8
LTC1992-10IMS8
LTC1992-10HMS8
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
G
DIFF
Differential Gain
10
±0.1
50
10
V/V
%
Differential Gain Error
●
●
±0.3
±0.1 ±0.35
Differential Gain Nonlinearity
Differential Gain Temperature Coefficient
50
3.5
ppm
3.5
ppm/°C
e
Input Referred Noise Voltage Density (Note 7) f = 1kHz
Input Resistance, Single-Ended +IN, –IN Pins
45
15
45
nV/√Hz
kΩ
n
R
●
11.3
18.8
11
15
– 0.1V to 3.8V
60
19
IN
V
Input Signal Common Mode Range
V = 5V
S
– 0.1V to 3.8V
60
V
INCMR
CMRR
Common Mode Rejection Ratio
(Amplifier Input Referred) (Note 7)
V
= –0.1V to 3.7V
●
●
55
55
dB
INCM
SR
Slew Rate (Note 4)
0.7
2
4
0.7
2
4
V/µs
GBW
Gain-Bandwidth Product
f
= 180kHz
MHz
TEST
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
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.
Note 2: Output load is connected to the midpoint of the +V and –V
S
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.
1992f
6