LT1100 Linear Technology, LT1100 Datasheet - Page 6

• Manufacturer Part Number: LT1100
• Description: Precision/ Chopper-Stabilized Instrumentation Amplifier
• Manufacturer: Linear Technology

8-Pin DIP (16-Pin SO)
Pin 1 (2) GND REF: Connect to system ground. This sets
the zero reference for the internal op amps.
Pin 2 (4) CMRR: This pin tailors the gain of the internal
amplifiers to maximize AC CMRR. For applications which
emphasize CMRR requirements, connect a 100k resistor
and a 10pF capacitor in series from CMRR to ground. See
the Applications section.
Pin 3 (6) –V
Pin 4 (7) V
Pin 5 (10) V
Pin 6 (11) V
Pin 7 (13) COMP: This pin reduces the bandwidth of the
internal amplifiers for applications at or near DC. Clock
feedthrough from the internal sampling clock can also be
LTC1100
2V/DIV
2V/DIV
PIN
6
TYPICAL PERFOR
U
Large-Signal Transient Response
G = 100, V
Large-Signal Transient Response
G = 10 (LTC1100CS Only), V
FUNCTIONS
U
–
IN
IN
+
: Negative Supply.
: Positive Supply.
: Inverting Input.
: Noninverting Input.
S
= 5V
10 s/DIV
10 s/DIV
U
W
LTC1100 • TPC13
LTC1100 • TPC16
S
= 5V
A
U
CE
50mV/DIV
50ms/DIV
C
HARA TERISTICS
Small-Signal Transient Response
G = 100, V
Small-Signal Transient Response
G = 10 (LTC1100CS Only), V
C
S
= 5V
10 s/DIV
10 s/DIV
suppressed by using the COMP pin. The standard com-
pensation circuit is a capacitor from COMP to V
to provide an RC pole with the internal 247k resistor
(22.5k for LTC1100CS in gain-of-10 mode). See the
Applications section.
Pin 8 (15) V
16-Pin SO Package Only
(3) G = 10: Short to pin (2) for gain of 10. Leave
disconnected for gain of 100.
(14) G = 10: Short to pin (15) for gain of 10. Leave
disconnected for gain of 100.
NOTE: Both pins must be shorted or open to provide
correct gain.
(1),(5),(8),(9),(12),(16) NC: No Internal Connection.
LTC1100 • TPC14
LTC1100 • TPC17
S
= 5V
OUT
: Signal Output.
1V/DIV
2V/DIV
1V/DIV
2V/DIV
Overload Recovery
G = 100, V
Overload Recovery
G = 10 (LTC1100CS Only), V
S
= 5V
1 s/DIV
5 s/DIV
OUT
LTC1100 • TPC18
LTC1100 • TPC15
S
, sized
= 5V