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PDF ISL28134 Data sheet ( Hoja de datos )
| Número de pieza | ISL28134 | |
| Descripción | Zero Drift Rail-to-Rail Precision Op Amp | |
| Fabricantes | Intersil | |
| Logotipo |  |
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5V Ultra Low Noise, Zero Drift Rail-to-Rail Precision
Op Amp
ISL28134
The ISL28134 is a single, chopper-stabilized zero-drift
operational amplifier optimized for single and dual supply
operation from 2.25V to 6.0V and ±1.125V and ±3.0V. The
ISL28134 features very low input offset voltage and low noise
with no 1/f noise corner down to 0.1Hz. The ISL28134 is
designed to have ultra low offset voltage and offset temperature
drift, wide gain bandwidth and rail-to-rail input/output swing
while minimizing power consumption.
This amplifier is ideal for amplifying the sensor signals of analog
front-ends that include pressure, temperature, medical, strain
gauge and inertial sensors.
The ISL28134 can be used over standard amplifiers with high
stability over the industrial temperature range of -40°C to
+85°C. The ISL28134 is available in an industry standard pinout
SOIC package.
Applications
• Medical Instrumentation
• Sensor Gain Amps
• Precision Low Drift, Low Frequency ADC Drivers
• Precision Voltage Reference Buffers
• Thermopile, Thermocouple, and other Temperature Sensors
Front-end Amplifiers
• Inertial Sensors
• Process Control Systems
• Weight Scales and Strain Gauge Sensors
Features
• Rail-to-Rail Inputs and Outputs
- CMRR @ VCM = 0.1V beyond VS . . . . . . . . . . . . .135dB, typ.
- VOH and VOL . . . . . . . . . . . . . . . . . . . . . . 10mV from VS, typ.
• No 1/f Noise Corner Down to 0.1Hz
- Input Noise Voltage . . . . . . . . . . . . . . . . .10 nV/√Hz @ 1kHz
- 0.1Hz to 10Hz Noise Voltage . . . . . . . . . . . . . . . . 250nVP-P
• Low Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5µV, Max
• Superb Offset Drift . . . . . . . . . . . . . . . . . . . . . . . 15nV/°C, Max
• Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25V to 6.0V
• Dual Supply . . . . . . . . . . . . . . . . . . . . . . . . . ±1.125V to ±3.0V
• Low ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .675µA, typ.
• Wide Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5MHz
• Operating Temperature Range
- Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
- Full Industrial (Coming Soon) . . . . . . . . . .-40°C to +125°C
• Packaging
- Single: SOIC, SOT-23, µTDFN (1.6mmx1.6mm)
Related Literature
• See AN1641, “ISL28134 Evaluation Board Manual”
• See AN1560, “Making Accurate Voltage Noise and Current
Noise Measurements on Operational Amplifiers Down to
0.1Hz”
SINGLE SUPPLY
HIGH GAIN AMPLIFIER
3V AV = 10,000 V/V
1MΩ
100
100
ANALOG
SENSOR INPUT 1MΩ
-
+
0.1µ
VOUT
RL
GND
FIGURE 1. TYPICAL APPLICATION
1400
1200
1000
VVsCM=
±2.5V
= 0V
T = -40°C to +85°C
N = 2330
800
600
400
200
0
-2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0
VOS (µV)
FIGURE 2. VOS HISTOGRAM VS = 5V
2.5
July 25, 2011
FN6957.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are tFhreeperoDpaetratyshoef tehtehirtrteps:p//ewctwivewo.dwantearssh. eet4u.com/
1 page  
ISL28134
Electrical Specifications VS = 5V, VCM = 2.5V, TA = +25°C, unless otherwise specified. Boldface limits apply over the operating
temperature range, -40°C to +85°C. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN MAX
(Note 9) TYP (Note 9) UNIT
ISC Short Circuit Output Source Current
Short Circuit Output Sink Current
VOH Output Voltage Swing, HIGH
From VOUT to V+
VOL Output Voltage Swing, LOW
From V- to VOUT
AOL
AC SPECIFICATIONS
Open Loop Gain
RL = Short to V-
RL = Short to V+
RL = 10kΩ to VCM
RL = 10kΩ to VCM
TA = -40°C to +85°C
RL = 10kΩ to VCM
RL = 10kΩ to VCM
TA = -40°C to +85°C
RL = 1MΩ
- 65
- -65
15 10
15 -
-
-
-
-
- 10 15
- - 15
- 174 -
mA
mA
mV
mV
mV
mV
dB
CIN Input Capacitance
Differential
Common Mode
- 5.2 -
- 5.6 -
pF
pF
eN Input Noise Voltage
f = 0.1Hz to 10Hz
f = 10Hz
- 250 400 nVP-P
- 8 - nV/√Hz
f = 1kHz
- 10 - nV/√Hz
IN
GBWP
Input Noise Current
Gain Bandwidth Product
f = 1kHz
- 200 - fA/√Hz
- 3.5 -
MHz
TRANSIENT RESPONSE
SR Positive Slew Rate
Negative Slew Rate
V+ = 5V, V- = 0V, VOUT = 1V to 3V, RL = 100kΩ,
-
1.5
-
V/µs
CL = 3.7pF
- 1.0 - V/µs
tr, tf, Small Signal
Rise Time, tr 10% to 90%
Fall Time, tf 10% to 90%
V+ = 5V, V- = 0V, VOUT = 0.1VP-P, RF = 0Ω,
RL = 100kΩ, CL = 3.7pF
- 0.07 -
- 0.17 -
tr, tf Large Signal
Rise Time, tr 10% to 90%
Fall Time, tf 10% to 90%
V+ = 5V, V- = 0V, VOUT = 2VP-P, RF = 0Ω,
RL = 100kΩ, CL = 3.7pF
- 1.3 -
- 2.0 -
ts
Settling Time to 0.1%, 2VP-P Step
AV = -1, RF = 1kΩ, CL = 3.7pF
- 100 -
trecover
Output Overload Recovery Time, Recovery AV = +2, RF = 10kΩ, RL = 100k, CL = 3.7pF - 3.1 -
to 90% of Output Saturation
µs
µs
µs
µs
µs
µs
Electrical Specifications VS = 2.5V, VCM = 1.25V, TA = +25°C, unless otherwise specified. Boldface limits apply over the operating
temperature range, -40°C to +85°C.
PARAMETER
DESCRIPTION
CONDITIONS
MIN MAX
(Note 9) TYP (Note 9) UNIT
DC SPECIFICATIONS
VOS
TCVOS
IB
TCIB
Input Offset Voltage
Output Voltage Temperature Coefficient
Input Bias Current
Input Bias Current Temperature
Coefficient
TA = -40°C to +85°C
TA = -40°C to +85°C
-2.5
-3.4
-15
- 300
-300
-
-0.2
-
-0.5
±120
-
±1.4
2.5
3.4
15
300
300
-
µV
µV
nV/°C
pA
pA
pA/°C
5 FN6957.2
July 25, 2011
Free Datasheet http://www.datasheet4u.com/
5 Page 
ISL28134
Typical Performance Curves TA =+25°C, VCM = 0V Unless otherwise specified. (Continued)
24
1
2
0
RL > 10kΩ
10
-2
-3 RL > 10kΩ
-4
-5
-6
VAVs
=
=
± 1.25V
1V
-7
CL = 3.7pF
VOUT = 10mVP-P
-8
10k
100k
RL = 1kΩ
1M
FREQUENCY (Hz)
10M
-2
RL = 1kΩ
-4
-6
-8
VAVs
=
=
± 2.5V
1V
CL = 3.7pF
VOUT = 10mVP-P
-10
100k
1M
10M
FREQUENCY (Hz)
100M
FIGURE 27. GAIN vs FREQUENCY vs RL, VS = 2.5V
FIGURE 28. GAIN vs FREQUENCY vs RL, VS = 5.0V
15
Vs = ± 2.5V
AV = 2V
10 RL = 100k
VOUT = 10mVP-P
5
Rg = 100k, Rf = 100k
Rg = 10k, Rf = 10k
0 Rg = 1k, Rf = 1k
-5
-10
100
1k
10k 100k 1M
10M 100M
FREQUENCY (Hz)
FIGURE 29. GAIN vs FREQUENCY vs FEEDBACK RESISTOR VALUES
Rf/Rg
12
10
Vs = ± 2.5V
AV = 1V
8
RL = 100k
VOUT = 10mVP-P
6
4
824pF
1nF
474pF
104pF
2
0 51pF
-2
-4 3.7pF
-6
10k
100k
1M
FREQUENCY (Hz)
10M
100M
FIGURE 31. GAIN vs FREQUENCY vs CL
2
0
-2
-4
-6
-8
-10
10
Vs = ± 2.5V
AV = 1V
RL = OPEN
CL = 3.7pF
100
1k
1VP-P
500mVP-P
250mVP-P
100mVP-P
10mVP-P
10k 100k 1M 10M
FREQUENCY (Hz)
FIGURE 30. GAIN vs FREQUENCY vs VOUT
100M
2
±1.5V
±3.0V
0
-2
-4 ±0.8V
-6
VOUT = 10mVP-P
-8
AV = 1V
RL = 100k
CL = 3.7pF
-10
1M
FREQUENCY (Hz)
10M
FIGURE 32. GAIN vs FREQUENCY vs SUPPLY VOLTAGE
11 FN6957.2
July 25, 2011
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet ISL28134.PDF ] | |
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