LT1990AIS8#TRPBF Linear Technology, LT1990AIS8#TRPBF Datasheet - Page 13
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LT1990AIS8#TRPBF
Manufacturer Part Number
LT1990AIS8#TRPBF
Description
IC AMP DIFF +/-250V MCRPWR 8SOIC
Manufacturer
Linear Technology
Datasheet
1.LT1990CS8.pdf
(16 pages)
Specifications of LT1990AIS8#TRPBF
Amplifier Type
Differential
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
0.55 V/µs
-3db Bandwidth
105kHz
Voltage - Input Offset
900µV
Current - Supply
140µA
Current - Output / Channel
22mA
Voltage - Supply, Single/dual (±)
2.7 V ~ 36 V, ±1.35 V ~ 18 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain Bandwidth Product
-
Current - Input Bias
-
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PI FU CTIO S
BLOCK DIAGRA
TYPICAL PERFOR A CE CHARACTERISTICS
REF (Pin 1): Reference Input. Sets the output level when
the difference between the inputs is zero.
–IN (Pin 2): Inverting Input. Connects a 1MΩ resistor to
the op amp’s inverting input. Designed to permit high
voltage operation.
+IN (Pin 3): Noninverting Input. Connects a 1MΩ resistor
to the op amp’s noninverting input. Designed to permit
high voltage operation.
V
(in single supply applications) or a negative voltage (in
split supply applications).
GAIN2 (Pin 5): Gain = 10 Select Input. Configures the
–
1.5V
U
(Pin 4): Negative Power Supply. Can be either ground
Small Signal Transient Response
V
G = 1, –1
R
V
S
L
REF
= 3V, 0V
= 10k
= 1.5V
U
50µs/DIV
U
W
W
1990 G28
U
–IN
+IN
V
V
+
–
7
2
3
4
R1
1M
R2
1M
GND
REF
Small Signal Transient Response
V
G = 1, –1
R
V
1
S
L
REF
R3
40k
= ±15V
= 10k
= GND
R4
40k
–
+
900k
900k
R5
R8
50µs/DIV
amplifier for a gain of 10 when connected to the GAIN1 pin
and the REF pin. The gain is equal to one when both GAIN2
and GAIN1 are open. See Applications section for addi-
tional functions.
OUT (Pin 6): Output. V
basic configuration.
V
36V above the V
GAIN1 (Pin 8): Gain = 10 Select Input. Configures the
amplifier for a gain of 10 when connected to the GAIN2 pin
and the REF pin. The gain is equal to one when both GAIN1
and GAIN2 are open. See Applications section for addi-
tional functions.
+
(Pin 7): Positive Power Supply. Can range from 2.7V to
R6
100k
R9
100k
10k
R10
10k
R7
1990 G29
1990 SS
8
6
5
–
voltage.
GAIN1
OUT
GAIN2
OUT
GND
= G • (V
Large Signal Transient Response
V
G = 1, –1
R
V
S
REF
L
= ±15V
= 10k
= GND
+IN
– V
50µs/DIV
–IN
) + V
LT1990
REF
13
, in the
1990 G30
1990fb