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PDF ADA4522-4 Data sheet ( Hoja de datos )
| Número de pieza | ADA4522-4 | |
| Descripción | Rail-to-Rail Output Operational Amplifier | |
| Fabricantes | Analog Devices | |
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Data Sheet
55 V, EMI Enhanced, Zero Drift, Ultralow Noise,
Rail-to-Rail Output Operational Amplifiers
ADA4522-1/ADA4522-2/ADA4522-4
FEATURES
Low offset voltage: 5 µV maximum
Extremely low offset voltage drift: 22 nV/°C maximum
Low voltage noise density: 5.8 nV/√Hz typical
117 nV p-p typical from 0.1 Hz to 10 Hz
Low input bias current: 50 pA typical
Unity-gain crossover: 3 MHz typical
Single-supply operation: input voltage range includes
ground and rail-to-rail output
Wide range of operating voltages
Single-supply operation: 4.5 V to 55 V
Dual-supply operation: ±2.25 V to ±27.5 V
Integrated EMI filters
Unity-gain stable
APPLICATIONS
Inductance, capacitance, and resistance (LCR)
meter/megohmmeter front-end amplifiers
Load cell and bridge transducers
Magnetic force balance scales
High precision shunt current sensing
Thermocouple/resistance temperature detector (RTD) sensors
Programmable logic controller (PLC) input and output
amplifiers
GENERAL DESCRIPTION
The ADA4522-1/ADA4522-2/ADA4522-4 are single/dual/quad
channel, zero drift op amps with low noise and power, ground
sensing inputs, and rail-to-rail output, optimized for total
accuracy over time, temperature, and voltage conditions. The
wide operating voltage and temperature ranges, as well as the
high open-loop gain and very low dc and ac errors make the
devices well suited for amplifying very small input signals and
for accurately reproducing larger signals in a wide variety of
applications.
The ADA4522-1/ADA4522-2/ADA4522-4 performance is
specified at 5.0 V, 30 V, and 55 V power supply voltages. These
devices operate over the range of 4.5 V to 55 V, and are excellent
for applications using single-ended supplies of 5 V, 10 V, 12 V,
and 30 V, or for applications using higher single supplies and
dual supplies of ±2.5 V, ±5 V, and ±15 V. The ADA4522-1/
ADA4522-2/ADA4522-4 use on-chip filtering to achieve high
immunity to electromagnetic interference (EMI).
The ADA4522-1/ADA4522-2/ADA4522-4 are fully specified
over the extended industrial temperature range of −40°C to
+125°C and are available in 8-lead MSOP, 8-lead SOIC, 14-lead
SOIC, and 14-lead TSSOP packages.
Rev. E
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
PIN CONNECTION DIAGRAM
OUT A 1
8 V+
–IN A 2 ADA4522-2 7 OUT B
+IN A 3
TOP VIEW
(Not to Scale)
6 –IN B
V– 4
5 +IN B
Figure 1. 8-Lead MSOP (RM Suffix) and 8-Lead SOIC (R Suffix)
Pin Configuration
For the ADA4522-1 and ADA4522-4 pin connections and for
more information about the pin connections for these products,
see the Pin Configurations and Function Descriptions section.
100
AV = 100
5V
30V
55V
10
1
0.1
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
Figure 2. Voltage Noise Density vs. Frequency, VSY = ±15 V
Table 1. Zero Drift Op Amps (<0.1 µV/°C)
Supply Voltage 5 V
16 V 30 V
55 V
Single
ADA4528-1
AD8628
AD8538
ADA4051-1
AD8638
ADA4638-1
ADA4522-1
Dual
ADA4528-2 AD8639
AD8629
AD8539
ADA4051-2
ADA4522-2
Quad
AD8630
ADA4522-4
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2015–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
Data Sheet
ADA4522-1/ADA4522-2/ADA4522-4
Parameter
Symbol Test Conditions/Comments
Min Typ
Max Unit
Short-Circuit Current Source
ISC+
21 mA
TA = 125°C
15 mA
Short-Circuit Current Sink
ISC−
33 mA
TA = 125°C
22 mA
Closed-Loop Output Impedance
ZOUT f = 1 MHz, AV = 1
4Ω
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
VSY = 4.5 V to 55 V
150 160
dB
−40°C ≤ TA ≤ +125°C
145 dB
Supply Current per Amplifier
ISY ADA4522-2, ADA4522-4, IOUT = 0 mA
830 900 µA
ADA4522-2, ADA4522-4, −40°C ≤ TA ≤ +125°C
950 µA
ADA4522-1, IOUT = 0 mA
840 910 µA
ADA4522-1, −40°C ≤ TA ≤ +125°C
970 µA
DYNAMIC PERFORMANCE
Slew Rate
SR+ RL = 10 kΩ, CL = 50 pF, AV = 1
1.8 V/µs
SR− RL = 10 kΩ, CL = 50 pF, AV = 1
0.9 V/µs
Gain Bandwidth Product
GBP VIN = 10 mV p-p, RL = 10 kΩ, CL = 50 pF, AV = 100 2.7 MHz
Unity-Gain Crossover
UGC
VIN = 10 mV p-p, RL = 10 kΩ, CL = 50 pF, AV = 1
3
MHz
−3 dB Closed-Loop Bandwidth
f−3 dB VIN = 10 mV p-p, RL = 10 kΩ, CL = 50 pF, AV = 1
6.5
MHz
Phase Margin
ΦM VIN = 10 mV p-p, RL = 10 kΩ, CL = 50 pF, AV = 1 64 Degrees
Settling Time to 0.1%
tS VIN = 10 V step, RL = 10 kΩ, CL = 50 pF, AV = 1
12 µs
Settling Time to 0.01%
tS VIN = 10 V step, RL = 10 kΩ, CL = 50 pF, AV = 1
14 µs
Channel Separation
CS VIN = 10 V p-p, f = 10 kHz, RL = 10 kΩ, CL = 50 pF
98
dB
EMI Rejection Ratio of +IN/+IN x
EMIRR VIN = 100 mV peak, f = 400 MHz
72 dB
VIN = 100 mV peak, f = 900 MHz
80 dB
VIN = 100 mV peak, f = 1800 MHz
83 dB
VIN = 100 mV peak, f = 2400 MHz
85 dB
NOISE PERFORMANCE
Total Harmonic Distortion Plus Noise THD + N AV = 1, f = 1 kHz, VIN = 6 V rms
BW = 80 kHz
0.0005
%
BW = 500 kHz
0.004
%
Peak-to-Peak Voltage Noise
eN p-p
AV = 100, f = 0.1 Hz to 10 Hz
117 nV p-p
Voltage Noise Density
eN AV = 100, f = 1 kHz
5.8 nV/√Hz
Peak-to-Peak Current Noise
iN p-p AV = 100, f = 0.1 Hz to 10 Hz
16 pA p-p
Current Noise Density
iN AV = 100, f = 1 kHz
0.8 pA/√Hz
ELECTRICAL CHARACTERISTICS—55 V OPERATION
VSY = 55 V, VCM = VSY/2 V, TA = 25°C, unless otherwise specified.
Table 4.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Offset Voltage Drift
Input Bias Current
Input Offset Current
Symbol Test Conditions/Comments
Min Typ
VOS
TCVOS
IB
IOS
VCM = VSY/2
−40°C ≤ TA ≤ +125°C
ADA4522-1, ADA4522-2
ADA4522-4
−40°C ≤ TA ≤ +85°C
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +85°C
ADA4522-1, ADA4522-2, −40°C ≤ TA ≤ +125°C
ADA4522-4, −40°C ≤ TA ≤ +125°C
1.5
6
9
50
80
Max Unit
7 µV
10 µV
30 nV/°C
40 nV/°C
150 pA
500 pA
4.5 nA
300 pA
400 pA
500 pA
550 pA
Rev. E | Page 5 of 32
5 Page 
Data Sheet
5
VSY = 5V
20 CHANNELS
3
1
–1
–3
–5
0
1.0 2.0
VCM (V)
3.0 3.5
Figure 12. Input Offset Voltage (VOS) vs. Common-Mode Voltage (VCM), VSY = 5 V
5
VSY = 30V
20 CHANNELS
3
1
–1
–3
–5
0 5.0 10.0 15.0 20.0 25.0 28.5
VCM (V)
Figure 13. Input Offset Voltage (VOS) vs. Common-Mode Voltage (VCM),
VSY = 30 V
5
VSY = 55V
20 CHANNELS
3
1
–1
–3
–5
0
5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 53.5
VCM (V)
Figure 14. Input Offset Voltage (VOS) vs. Common-Mode Voltage (VCM),
VSY = 55 V
ADA4522-1/ADA4522-2/ADA4522-4
2000
VSY = 5V
1500
1000
500
+125°C
+85°C
+25°C
–40°C
0
–500
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5
VCM (V)
Figure 15. Input Bias Current (IB) vs. Common-Mode Voltage (VCM), VSY = 5 V
3000
VSY = 30V
2500
2000
1500
1000
+125°C
+85°C
+25°C
–40°C
500
0
–500
0
5.0 10.0 15.0 20.0 25.0 28.5
VCM (V)
Figure 16. Input Bias Current (IB) vs. Common-Mode Voltage (VCM), VSY = 30 V
5000
VSY = 55V
4500
4000
3500
3000
2500
2000
+125°C
+85°C
+25°C
–40°C
1500
1000
500
0
–500
0
5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 53.5
VCM (V)
Figure 17. Input Bias Current (IB) vs. Common-Mode Voltage (VCM),
VSY = 55 V
Rev. E | Page 11 of 32
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADA4522-4.PDF ] | |
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