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LT1100 Datasheet

Precision/ Chopper-Stabilized Instrumentation Amplifier

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LTC1100
Precision, Chopper-Stabilized
Instrumentation Amplifier
FEATURES
s Offset Voltage: 10µV Max
s Offset Voltage Drift: 50nV/°C Max
s Bias Current: 50pA Max
s Offset Current: 50pA Max
s Gain Nonlinearity: 8ppm Max
s Gain Error: ±0.05% Max
s CMRR: 104dB
s 0.1Hz to 10Hz Noise: 2µVP-P
s Single 5V Supply Operation
s 8-Pin MiniDIP
APPLICATI S
s Thermocouple Amplifiers
s Strain Gauge Amplifiers
s Differential to Single-Ended Converters
DESCRIPTIO
The LTC1100 is a high precision instrumentation ampli-
fier using chopper-stabilization techniques to achieve
outstanding DC performance. The input DC offset is
typically 1µV while the DC offset drift is typically 10nV/°C;
a very low bias current of 50pA is also achieved.
The LTC1100 is self-contained; that is, it achieves a differ-
ential gain of 100 without any external gain setting resistor
or trim pot. The gain linearity is 8ppm and the gain drift is
4ppm/°C. The LTC1100 operates from a single 5V supply
up to ±8V. The output typically swings 300mV from its
power supply rails with a 10k load.
An optional external capacitor can be added from pin 7 to
pin 8 to tailor the device’s 18kHz bandwidth and to
eliminate any unwanted noise pickup.
The LTC1100 is also offered in a 16-pin surface mount
package with selectable gains of 10 or 100.
The LTC1100 is manufactured using Linear Technology’s
enhanced LTCMOSTM silicon gate process.
LTCMOS is a trademark of Linear Technology Corporation
TYPICAL APPLICATI
Single 5V Supply, DC Instrumentation Amplifier
18
VOUT
2 7 0.01µF
3
–VIN
LTC1100
6
VIN
4 5 V+ = 5V
VOUT = 100 [VIN – (–VIN)]
0.1µF
LTC1100 • TA01
1


Linear Technology Electronic Components Datasheet

LT1100 Datasheet

Precision/ Chopper-Stabilized Instrumentation Amplifier

No Preview Available !

LTC1100
ABSOLUTE AXI U RATI GS
Operating Temperature Range
LTC1100M/AM ................................ 55°C to 125°C
LTC1100C/AC .................................... 40°C to 85°C
Output Short Circuit Duration ......................... Indefinite
Storage Temperature Range ................ 65°C to 150°C
Total Supply Voltage (V+ to V) ............................. 18V
Input Voltage ....................... (V+ + 0.3V) to (V0.3V)
Lead Temperature (Soldering, 10 sec)................. 300°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
GND REF 1
CMRR 2
–VIN 3
V4
8 VOUT
7 COMP
6 VIN
5 V+
J8 PACKAGE
N8 PACKAGE
8-LEAD CERAMIC DIP 8-LEAD PLASTIC DIP
TJMAX = 150°C, θJA = 100°C/W (J)
TJMAX = 110°C, θJA = 130°C/W (N)
ORDER PART
NUMBER
LTC1100ACN8
LTC1100CJ8
LTC1100CN8
LTC1100AMJ8
LTC1100MJ8
Contact factory for Industrial grade parts
NC 1
GND REF 2
G = 10 3
CMRR 4
NC 5
–VIN 6
V7
NC 8
TOP VIEW
16 NC
15 VOUT
14 G = 10
13 COMP
12 NC
11 VIN
10 V+
9 NC
S PACKAGE
16-LEAD PLASTIC SOL
TJMAX = 110°C, θJA = 100°C/W
ORDER PART
NUMBER
LTC1100ACS
LTC1100CS
ELECTRICAL CHARACTERISTICS VS = ±5V, RL = 10k, CC = 1000pF, unless otherwise specified.
PARAMETER
Gain Error
CONDITIONS
TA = 25°C
Gain Nonlinearity
TA = 25°C
Input Offset Voltage
Input Offset Voltage Drift
Input Noise Voltage
Input Bias Current
(Note 1)
(Note 1)
DC to 10Hz, TA = 25°C
TA = 25°C
Input Offset Current
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Supply Current
VCM = 2.3V to 4.7V (Note 2)
VS = ±2.375V to ±8V
RL = 2k, VS = ±8V
RL =10k, VS = ±8V
TA = 25°C
Internal Sampling Frequency
Bandwidth
TA = 25°C
TA = 25°C
q
q
q
q
q
q
q
q
q
q
LTC1100ACN (Note 3)
MIN TYP MAX
0.01 0.05
0.10
38
12 30
±1 ±10
±5 ±100
1.9
2.5 50
120
10 50
104 115
120
– 7.2 6.2
– 7.7 7.5
2.4 2.8
3.4 4.0
2.8
18
LTC1100CN/CJ
MIN TYP MAX
0.01 0.075
0.150
3 20
12 60
±1 ±10
±5 ±100
1.9
2.5 65
135
10 65
90 110
105
– 7.2 6.2
– 7.7 7.5
2.4 3.3
3.4 4.5
2.8
18
UNITS
±%
±%
ppm
ppm
µV
nV/°C
µVP-P
pA
pA
pA
dB
dB
V
V
mA
mA
kHz
kHz
2


Part Number LT1100
Description Precision/ Chopper-Stabilized Instrumentation Amplifier
Maker Linear Technology
Total Page 8 Pages
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