LT1884/LT1885
6
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The inputs are protected by back-to-back diodes. If the differential
input voltage exceeds 0.7V, the input current should be limited to less than
10mA.
Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum.
Note 4: The LT1884C/LT1885C and LT1884I/LT1885I are guaranteed
functional over the operating temperature range of – 40°C to 85°C.
Note 5: The LT1884C/LT1885C are designed, characterized and expected
to meet specified performance from –40°C to 85°C but are not tested or
QA sampled at these temperatures. LT1884I is guaranteed to meet
specified performance from – 40°C to 85°C.
Note 6: This parameter is not 100% tested.
Note 7: Matching parameters are the difference between amplifiers A and
B in the LT1884 and between amplifiers A and D and B and C in the
LT1885.
Note 8: This parameter is the difference between the two noninverting
input bias currents.
Note 9: ∆CMRR and ∆PSRR are defined as follows: CMRR and PSRR are
measured in µV/V on each amplifier. The difference is calculated in µV/V
and then converted to dB.
ELECTRICAL CHARACTERISTICS
Distribution of Offset Voltage Drift
TYPICAL PERFOR A CE CHARACTERISTICS
UW
OFFSET VOLTAGE DRIFT (µV/°C)
–0.9 –0.7 –0.5 –0.3 –0.1 0.1 0.3 0.5 0.7 0.9
PERCENT OF UNITS (%)
12
16
20
24
18845 G01
8
4
0
V
S
= ±15V
TEMPERATURE (°C)
–50 –30 –10 10 30 50 70 90 110125
INPUT OFFSET VOLTAGE (µV)
50
100
150
200
18845 G02
0
–50
–100
–150
–200
TEMPCO: –55°C TO 125°C
10 REPRESENTATIVE UNITS
I
SINK
(V
OUT
– V
EE
) (mV)
500
400
300
200
100
0
10µA 1mA 10mA
18845 G03
100µA
125°C
–55°C
25°C
V
S
= ±15V
Input Offset Voltage
vs Temperature
V
OUT
vs I
SOURCE
V
OUT
vs I
SINK
I
SOURCE
(V
CC
– V
OUT
) (mV)
500
400
300
200
100
0
10µA 1mA 10mA
18845 G04
100µA
125°C
V
S
= ±15V
–55°C
25°C
Gain vs Frequency
FREQUENCY (Hz)
GAIN (dB)
140
120
100
80
60
40
20
0
–20
18845 G05
0.1 1 10 100 1k 10k 100k 1M 10M
V
S
= ±15V
Gain, Phase Shift vs Frequency
FREQUENCY (Hz)
VOLTAGE GAIN (dB)
100
90
80
70
60
50
40
30
20
10
0
–10
–20
PHASE SHIFT (DEG)
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
–180
18845 G06
10k 100k 1M 10M
PHASE SHIFT
GAIN