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PDF LTC1050 Data sheet ( Hoja de datos )
| Número de pieza | LTC1050 | |
| Descripción | Precision Zero-Drift Operational Amplifier | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LTC1050 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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FEATURES
■ No External Components Required
■ Noise Tested and Guaranteed
■ Low Aliasing Errors
■ Maximum Offset Voltage: 5µV
■ Maximum Offset Voltage Drift: 0.05µV/°C
■ Low Noise: 1.6µVP-P (0.1Hz to 10Hz)
■ Minimum Voltage Gain: 130dB
■ Minimum PSRR: 125dB
■ Minimum CMRR: 120dB
■ Low Supply Current: 1mA
■ Single Supply Operation: 4.75V to 16V
■ Input Common Mode Range Includes Ground
■ Output Swings to Ground
■ Typical Overload Recovery Time: 3ms
U
APPLICATIO S
■ Thermocouple Amplifiers
■ Electronic Scales
■ Medical Instrumentation
■ Strain Gauge Amplifiers
■ High Resolution Data Acquisition
■ DC Accurate RC Active Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTC1050
Precision Zero-Drift
Operational Amplifier
with Internal Capacitors
DESCRIPTIO
The LTC®1050 is a high performance, low cost zero-drift
operational amplifier. The unique achievement of the
LTC1050 is that it integrates on-chip the two sample-and-
hold capacitors usually required externally by other chop-
per amplifiers. Further, the LTC1050 offers better com-
bined overall DC and AC performance than is available
from other chopper stabilized amplifiers with or without
internal sample-and-hold capacitors.
The LTC1050 has an offset voltage of 0.5µV, drift of
0.01µV/°C, DC to 10Hz, input noise voltage of 1.6µVP-P
and a typical voltage gain of 160dB. The slew rate of 4V/µs
and a gain bandwidth product of 2.5MHz are achieved with
only 1mA of supply current.
Overload recovery times from positive and negative satu-
ration conditions are 1.5ms and 3ms respectively, which
represents an improvement of about 100 times over chop-
per amplifiers using external capacitors. Pin 5 is an optional
external clock input, useful for synchronization purposes.
The LTC1050 is available in standard 8-pin metal can,
plastic and ceramic dual-in-line packages as well as an
SO-8 package. The LTC1050 can be an improved plug-in
replacement for most standard op amps.
TYPICAL APPLICATIO
High Performance, Low Cost Instrumentation Amplifier
5V
4
1/2 LTC1043
78
DIFFERENTIAL
INPUT
11
CS
1µF
12
5V
3+ 7
LTC1050
2– 4
6
CH
1µF
– 5V
1µF
VOUT
13 14
16 17
0.01µF
– 5V
R1 R2
1050 TA01
CMRR > 120dB AT DC
CMRR > 120dB AT 60Hz
DUAL SUPPLY OR SINGLE 5V
GAIN = 1 + R2/R1
VOS = 5µV
COMMON MODE INPUT VOLTAGE EQUALS THE SUPPLIES
160
140
120
100
80
60
40
20
0
10
Noise Spectrum
100 1k 10k
FREQUENCY (Hz)
100k
1050 TA02
1050fb
1
1 page  
LTC1050
TYPICAL PERFOR A CE CHARACTERISTICS
Gain/Phase vs Frequency
120
60
100 80
80 100
PHASE
60 120
GAIN
40 140
20 160
0 VS = ± 5V
TA = 25°C
– 20 CL = 100pF
RL ≥ 1k
– 40
100 1k
10k 100k
FREQUENCY (Hz)
180
200
220
1M 10M
1050 G10
LTC1050 DC to 1Hz Noise
Small-Signal Transient Response
Large-Signal Transient Response
100mV
STEP
VOUT
2V
VIN = 6V
AV = 1
RL = 10k
CL = 100pF
VS = ±5V
1050 G11
AV = 1
RL = 10k
CL = 100pF
VS = ±5V
1050 G12
0.5µV
10 SEC
LTC1050 DC to 10Hz Noise
1050 G13
1µV
1 SEC
1050 G14
1050fb
5
5 Page 
TYPICAL APPLICATI S
Precision Voltage Controlled Current Source
with Ground Referred Input and Output
INPUT
0V TO
3.2V
5V
3+ 7
LTC1050 6 2N2222
2– 4
0.68µF
1k
8
5V
4
LTC1043
7
11
1µF 1µF
12
100Ω
14 13
17 16
0.001µF
1050 TA10
IOUT
=
VIN
100Ω
LTC1050
Sample-and-Hold Amplifier
Ultraprecision Voltage Inverter
LTC1043
NC 6
5
2–
LTC1050
3+
6
VOUT
2
CL
0.01µF
SAMPLE HOLD 16
17
VIN
1050 TA11
FOR 1V ≤ VIN ≤ 4V, THE HOLD STEP IS ≤300µV.
ACQUISTION TIME IS DETERMINED BY THE SWITCH RON.
CL TIME CONSTANT
LTC1043
VIN 7
8
11
C1
1µF
12
13 14
16 17
0.01µF
1050 TA12
C2 V+
1µF
2– 7
LTC1050 6 VOUT
3+ 4
V–
FOR VS = ±5V, (V – ) + 1.8V < VIN < V+
VOUT = – VIN ±20ppm
MATCHING BETWEEN C1 AND C2 NOT REQUIRED
1050fb
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet LTC1050.PDF ] | |
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