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PDF LTC1100 Data sheet ( Hoja de datos )
| Número de pieza | LTC1100 | |
| Descripción | Zero-Drift Instrumentation Amplifier | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LTC1100
Precision, Zero-Drift
Instrumentation Amplifier
FEATURES
■ Offset Voltage: 10µV Max
■ Offset Voltage Drift: 100nV/°C Max
■ Bias Current: 65pA Max
■ Offset Current: 65pA Max
■ Gain Nonlinearity: 20ppm Max
■ Gain Error: ±0.075% Max
■ CMRR: 90dB
■ 0.1Hz to 10Hz Noise: 1.9µVP-P
■ Single 5V Supply Operation
■ 8-Pin MiniDIP
U
APPLICATIO S
■ Thermocouple Amplifiers
■ Strain Gauge Amplifiers
■ Differential to Single-Ended Converters
TYPICAL APPLICATIO
DESCRIPTIO
The LTC®1100 is a high precision instrumentation amplifier
using zero-drift techniques to achieve outstanding DC
performance. The input DC offset is typically 1µV while
the DC offset drift is typically 5nV/°C; a very low bias
current of 65pA 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 20ppm 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTCMOS is a trademark of Linear Technology Corporation
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
1100fc
1
1 page  
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Supply Voltage
4
TA = –55°C
3
TA = 25°C
2 TA = 125°C
1
0
2 4 6 8 10 12 14 16 18
TOTAL SUPPLY VOLTAGE V+ TO V– (V)
LTC1100 • TPC04
Power Supply Rejection Ratio
vs Frequency
150
125
100
75
50
25
0
0.1 1
10 100 1k
FREQUENCY (Hz)
10k 100k
LTC1100 • TPC05
CMRR vs Frequency
120
100
G = 100, RC = ∞
CC = 0pF
80
G = 100, RC = 100k
CC = 10pF
60 RC C C
G = 10, RC = ∞
40 1
3–
2
CC = 0pF
20
LTC1100
6+
0
0.1 1 10 100 1k 10k 100k
FREQUENCY (Hz)
LTC1100 • TPC07
Bias Current vs
Common Mode Voltage
360
VS = ±5V
300
240
TA = 125°C
180
120
60
0
– 60
–120
TA = 25°C
TA = –55°C
–180
–200
–6 –5 –4 –3 –2 –1 0 1 2 3 4
COMMON MODE VOLTAGE (V)
LTC1100 • TPC10
Output Voltage Swing vs Load
±10
±9
±8 NEGATIVE
VS = ±8V, TA ≤ 85°C
±7 POSITIVE
±6
±5 NEGATIVE
VS = ±5V, TA ≤ 85°C
±4 POSITIVE
±3 NEGATIVE
VS = ±2.5V, TA ≤ 85°C
±2
POSITIVE
±1
0
0 1 2 3 4 5 6 7 8 9 10
LOAD RESISTANCE (kΩ)
LTC1100 • TPC08
Voltage Noise vs Frequency
105
90
75
60
45
30
15
0
10 100 1k 10k 100k
FREQUENCY (Hz)
LTC1100 • TPC11
LTC1100
Common Mode Range
vs Supply Voltage
8
TA = 25°C
6
4
2
POSITIVE COMMON MODE RANGE
0
–2
–4
–6
NEGATIVE COMMON MODE RANGE
–8
±2 ±3 ±4 ±5 ±6
SUPPLY VOLTAGE (V)
±7
±8
LTC1100 • TPC06
Undistorted Output Swing
vs Frequency
10
VS = ±5V
9
8
RL = 100k
7
RL = 2k
6
5
4
3
2
1
0
100
1k 10k
FREQUENCY (Hz)
100k
LTC1100 • TPC09
Internal Sampling Frequency
vs Supply Voltage
4
TA = –55°C
3
TA = 25°C
2
TA = 125°C
1
0
2 4 6 8 10 12 14 16
TOTAL SUPPLY VOLTAGE V+ TO V– (V)
18
LTC1100 • TPC12
1100fc
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LTC1100.PDF ] | |
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