Datasheet ADA4522-1, ADA4522-2, ADA4522-4 (Analog Devices)

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55 V, EMI Enhanced, Zero Drift, Ultralow Noise, Rail-to-Rail Output Operational Amplifiers Data Sheet ADA4522-1 /ADA4522-2/ ADA4522-4 FEATURES PIN CONNECTION DIAGRAM Low offset voltage: 5 µV maximum OUT A 1 8 V+ Extremely low offset voltage drift: 22 nV/°C maximum –IN A 2 ADA4522-2 7 OUT B Low voltage noise density: 5.8 nV/√Hz typical +IN A TOP VIEW 3 6 –IN B (Not to Scale)
001
117 nV p-p typical from 0.1 Hz to 10 Hz V– 4 5 +IN B
13168-
Low input bias current: 50 pA typical
Figure 1. 8-Lead MSOP (RM Suffix) and 8-Lead SOIC (R Suffix)
Unity-gain crossover: 3 MHz typical
Pin Configuration
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
For the ADA4522-1 and ADA4522-4 pin connections and for
Magnetic force balance scales
more information about the pin connections for these products,
High precision shunt current sensing
see the Pin Configurations and Function Descriptions section.
Thermocouple/resistance temperature detector (RTD) sensors 100 Programmable logic controller (PLC) input and output AV = 100 5V 30V amplifiers z) 55V H GENERAL DESCRIPTION /√ (nV 10
The ADA4522-1/ADA4522-2/ADA4522-4 are single/dual/quad
SITY
channel, zero drift op amps with low noise and power, ground
EN
sensing inputs, and rail-to-rail output, optimized for total
E D OIS
accuracy over time, temperature, and voltage conditions. The
N 1
wide operating voltage and temperature ranges, as well as the
GE
high open-loop gain and very low dc and ac errors make the
VOLTA
devices well suited for amplifying very small input signals and for accurately reproducing larger signals in a wide variety of
0.1 10 100 1k 10k 100k 1M
165 applications.
FREQUENCY (Hz)
13168- The ADA4522-1/ADA4522-2/ADA4522-4 performance is Figure 2. Voltage Noise Density vs. Frequency, VSY = ±15 V specified at 5.0 V, 30 V, and 55 V power supply voltages. These
Table 1. Zero Drift Op Amps (<0.1 µV/°C)
devices operate over the range of 4.5 V to 55 V, and are excellent
Supply Voltage 5 V 16 V 30 V 55 V
for applications using single-ended supplies of 5 V, 10 V, 12 V, Single ADA4528-1 AD8638 ADA4638-1 ADA4522-1 and 30 V, or for applications using higher single supplies and AD8628 dual supplies of ±2.5 V, ±5 V, and ±15 V. The ADA4522-1/ AD8538 ADA4522-2/ADA4522-4 use on-chip filtering to achieve high ADA4051-1 immunity to electromagnetic interference (EMI). Dual ADA4528-2 AD8639 ADA4522-2 AD8629 The ADA4522-1/ADA4522-2/ADA4522-4 are fully specified AD8539 over the extended industrial temperature range of −40°C to ADA4051-2 +125°C and are available in 8-lead MSOP, 8-lead SOIC, 14-lead Quad AD8630 ADA4522-4 SOIC, and 14-lead TSSOP packages.
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Document Outline Features Applications General Description Pin Connection Diagram Revision History Specifications Electrical Characteristics—5.0 V Operation Electrical Characteristics—30 V Operation Electrical Characteristics—55 V Operation Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Theory of Operation On-Chip Input EMI Filter and Clamp Circuit Thermal Shutdown Input Protection Single-Supply and Rail-to-Rail Output Large Signal Transient Response Case 1 Case 2 Noise Considerations 1/f Noise Source Resistance Residual Ripple Current Noise Density EMI Rejection Ratio Capacitive Load Stability Applications Information Single-Supply Instrumentation Amplifier Load Cell/Strain Gage Sensor Signal Conditioning Using the ADA4522-2 Precision Low-Side Current Shunt Sensor Printed Circuit Board Layout Comparator Operation Outline Dimensions Ordering Guide