Analog Devices Provides Amplifiers for Every Application OASG

Selecting an op-amp is no trivial task: with so many different types of amplifiers, categories, architectures, and parameters to choose from, the process can be difficult. Each customer and application requires slightly different performance. It does not matter whether you are designing a coffee maker or the next-generation medical imaging system; Analog Devices, Inc. has the right amplifier to meet your needs.

The Operational Amplifiers Selection Guide will help you quickly and easily identify the right op-amp(s) for your application. Inside you will find a list of op-amp terminology and processes used to fabricate the ICs, a variety of selection tables, application guides, design tools, and a handy detachable op-amp reference wall chart. We hope you will refer to this selection guide often and that it provides you with a better understanding and appreciation of op-amps and their many applications.



Precision op-amplifiers (<50MHz)

Analog Devices' amplifiers are the number one selling brand of amplifiers in the world today. ADI delivers wide portfolio of high performance precision amplifiers to enable designer to achieve leading-edge next generation systems. System designers come here for the ultimate source of low noise, low power, zero drift and zero cross over distortion precision amplifiers.

ADA4700-1: 100V, Precision Operational Amplifier

ADA4700-1

FEATURES AND BENEFITS

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  • Low input offset voltage: ≤0.2 mV typical
  • High output current drive: 30 mA
  • Wide range of operating voltage: ±5 V to ±50 V
  • High slew rate: 20 V/μs typical
  • High gain bandwidth product: 3.5 MHz typical
  • Thermal regulation at junction temperature >145°C
  • Ambient temperature range of -40° C to +85° C
  • Low input bias current ≤ 15 nA typical
Part Number No. of
Amps
Supply Voltage
(Min/Max)
Rail-to-Rail¹ BW @ ACL
Min (MHz)
Slew Rate
(V/µs)
VOS Max (mV) TCVOS (µ v/°C Typ)  
ADA4051-1
ADA4051-2
1
2
1.8/5.5 RRIO 0.125 0.06 0.015 0.02 Datasheet
AD8505
AD8506
AD8508
1
2
4
1.8/5.5 RRIO 0.095 0.013 2.5 2 Datasheet
ADA4528-1
ADA4528-2
1
2
2.2/5.5 RRIO 4 0.4 0.0025 0.002 Datasheet
ADA4500-2 2 2.7/5.5 RRIO 10 5.5 0.12 0.9 Datasheet
ADA4691-2
ADA4691-4
2
4
2.7/6 SS 3.6 1.3 2.5 1 Datasheet
ADA4692-2
ADA4692-4
2
4
2.7/6 SS 3.6 1.3 2.5 1 Datasheet
ADA4665-2 2 5/16 RRIO 1.2 1 6 3 Datasheet
AD8657
AD8659
2
4
2.7/18 RRIO 0.23 0.3 0.3 4 Datasheet
AD8546
AD8548
2
4
2.7/18 RRIO 0.24 0.07 3 3 Datasheet
ADA4661-2 2 3/20.5 RRIO 4.5 2.2 0.15 2.1 Datasheet
ADA4666-2 2 3/20.5 RRIO 4.5 2.2 2.2 3 Datasheet
ADA4077-1A
ADA4077-2A
ADA4077-4A
1
2
4
±4.5/±18   4 1 0.05 0.225 Datasheet

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High Speed Amplifiers (>50MHz)

Analog Devices' High Speed (>50MHz) amplifiers are the number one selling brand of High Speed amplifiers in the world today. Whether it's wide bandwidth, high slew rate or low distortion, no one sets more performance standards for next generation designs, with the widest portfolio of leading-edge products than Analog Devices. Designers who want dependable, reliable parts that enable the highest performance from their design, come here for the ultimate source in high-speed op-amps.

ADA4870-1/-2: High Speed, High Voltage, 1 A Output Drive Amplifiers

ADA4870

FEATURES AND BENEFITS

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  • Ideal for driving high capacitive or low resistive loads
  • Wide supply range: 10 V to 40 V
  • High output current drive: 1A
  • Wide output voltage swing: 37 V swing with 40 V supply
  • High slew rate: 2500 V/μs
  • High bandwidth: 52 MHz large signal, 70 MHz small signal
  • Low noise: 2.1 nV/√Hz
  • Quiescent current: 32.5 mA
    - Power down: 0.75 mA
  • Short-circuit protection and flag
    - Current limit: 1.2 A
  • Thermal protection
Part Number Noise
(nV/√Hz)
IS/Amp
(mA Typ)
BW @ ACL
Min (MHz)
Slew Rate
(V/µS)
Supply Voltage
(V)
IB
(µA Max)
Rail-to-Rail No. of
Amps
 
ADA4870 2.1 33 70 2500 ±5, ±20 25 - 1 Datasheet
ADA4895-2 2 3 236 943 3, 5, ±5 16 RRO 2 Datasheet
AD823A 14 5.1 17 30 3, 5, ±5, ±12, ±18 25 pA RRO 2 Datasheet
ADA4896-2 1 3 200 100 3 to 10 10 RRIO 2 Datasheet
ADA4897-1
ADA4897-2
1 3 200 100 3 to 10 10 RRO 1
2
Datasheet
ADA4830-1
ADA4830-2
28 6.8 85 250 3, 5 N/A RRO 1
2
Datasheet
ADA4940-1
ADA4940-2
- 1.25 260 95 3, 5 1.6 RRO 1
2
Datasheet
ADA4898-1
ADA4898-2
0.9 8.1 65 55 ±5, ±12, ±15 0.4 - 1
2
Datasheet
ADA4930-1
ADA4930-2
1.2 34 1350 3400 3 to 5.25 24 - 1
2
Datasheet
ADA4927-1
ADA4927-2
1.4 20 2300 5000 5, ±5 15 - 1
2
Datasheet

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Instrumentation Amplifiers

Instrumentation amplifiers (in-amps) are precision gain blocks that have a differential input and an output that may be differential, or single-ended with respect to a reference terminal. These devices amplify the difference between two input signal voltages while rejecting any signals that are common to both inputs. The in-amps are widely used in many industrial, measurement, data acquisition, and medical applications where DC precision and gain accuracy must be maintained within a noisy environment, and where large common-mode signals (usually at the AC power line frequency) are present. Analog Devices offers a complete line of precision, low-noise, low-power in-amps with excellent CMRR (common mode rejection ratio) for every application and market.

AD8429: 1nV/sq-Hz Low Noise Instrumentation Amplifier

FEATURES AND BENEFITS

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High accuracy DC performance (AD8429BRZ)

  • 90 dB CMRR minimum (G = 1)
  • 50 μV maximum input offset voltage
  • 0.02% maximum gain accuracy (G = 1)

Excellent AC specifications

  • 80 dB CMRR to 5 kHz (G = 1)
  • 15 MHz bandwidth (G = 1)
  • 1.2 MHz bandwidth (G = 100)
  • 22 V/μs slew rate
  • THD: −130 dBc (1 kHz, G = 1)

Versatile

  • ±4 V to ±18 V dual supply
  • Gain set with a single resistor (G = 1 to 10,000)
  • Temperature range for specified performance −40°C to +125°C

Low noise

  • 1 nV/√Hz input noise
  • 45 nV/√Hz output noise
Part Number Supply Current
Max (mA)
Operating Voltage
Range (V)
CMRR @ 60 Hz
G = 1 Min (dB)
Input Voltage
Offset TC Max (uV/°C)
Input Voltage
Offset (RTI) Max (uV)
 
AD8226 0.425 ±1.35 to ±18, 2.2 to 36 86 2 100 Datasheet
AD8227 0.425 ±1.5 to ±18, 2.2 to 36 90 (G = 5) 2 200 Datasheet
AD8228 1 ±2.3 to ±18 94 (G = 10) 0.9 90 Datasheet
AD8229 7 ±4 to ±17 86 1 100 Datasheet
AD8235 0.04 1.8 to 5.5 90 (G = 5) 0.7 (typ) 2.5 Datasheet
AD8236 0.04 1.8 to 5.5 86 (G = 5) 2.5 (typ) 3.5 Datasheet
AD8237 0.13 1.8 to 5.5 106 0.3 75 Datasheet
AD8420 0.08 ±2.7 to ±18, 2.7 to 36 100 1 125 Datasheet
AD8421A 2.3 ±2.5 to ±18 86 0.4 60 Datasheet
AD8421B 2.3 ±2.5 to ±18 94 0.2 25 Datasheet
AD8422A 0.33 ±1.8 to ±15 86 0.4 60 Datasheet
AD8422B 0.33 ±1.8 to ±15 94 0.3 25 Datasheet
AD8426 0.8 ±1.35 to ±18, 2.2 to 36 80 2 200 Datasheet

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Current Sense Amplifiers

ADI’s Current Sense Amplifiers offer excellent performance for a wide array of automotive and power management applications. These devices accurately amplify small voltages in the presence of large common-mode voltage, provide high bandwidth, as well as level shifting and bidirectional capability. Excellent DC and AC accuracy over a wide temperature range from -40°C to 125°C minimizes errors in your measurement loop while not sacrificing on cost and package size.

AD8418 : Bidirectional, Zero Drift, Current Sense Amplifier

AD8418

FEATURES AND BENEFITS

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  • Typical 0.1 μV/°C offset drift
  • Maximum ±400 μV voltage offset over full temperature range
  • 2.7 V to 5.5 V power supply operating range
  • Electromagnetic interference (EMI) filters Included
  • High common-mode input voltage range
    • −2 V to +70 V operating
    • −4 V to +85 V survival
  • Common-mode rejection ratio (CMRR): 86 dB, DC to 10 kHz
  • Initial gain = 20 V/V
  • Wide operating temperature range:
    • −40°C to +125°C
  • Bidirectional operation
  • Available in 8-lead SOIC and 8-lead MSOP
  • Qualified for automotive applications
Part Number Common-Mode
Voltage Range (V)
Bandwidth
@ G = 10 Typ (kHz)
Input Voltage
Offset TC Max (uV/°C)
Input Voltage
Offset (RTI) Max (uV)
Gain Drift
Max (ppm/°C)
 
AD8207 –4 to +65 150 ±1 ±400 15 Datasheet
AD8208 –2 to +45 20/14 ±20 ±2000 –20 Datasheet
AD8209 –2 to +45 20/14 ±20 ±2000 –20 Datasheet
AD8217 4 to 80 500 ±0.1 (typ) ±300 ±5 (typ) Datasheet
AD8218 4 to 80 450 ±0.5 ±300 10 Datasheet
AD8219 4 to 80 500 ±0.5 ±300 10 Datasheet
AD8417 –2 to +70 250 ±0.5 ±300 10 Datasheet
AD8418 –2 to +70 250 ±0.5 ±300 10 Datasheet
AD8418A –2 to +70 250 ±0.5 ±300 10 Datasheet

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Difference Amplifiers

A difference amplifier is a special purpose amplifier designed to measure differential signals, otherwise known as a subtracter. A key feature of a difference amplifier is its ability to remove unwanted common mode signals, known as common mode rejection (CMR). Unlike most types of amplifiers, difference amplifiers are typically able to measure voltages beyond the supply rails, and are used in applications where large DC or AC common-mode voltages are present. They are ideal for current and voltage monitoring. We offer a range of difference amplifiers, optimized for low distortion, low power, or high voltage performance.

AD8479 : +/-600V Common-Mode Voltage Precision Difference Amplifier

AD8479

FEATURES AND BENEFITS

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  • ±600 V common-mode voltage range
  • Rail-to-rail output
  • Fixed gain of 1
  • Wide power supply range of ±2.5 V to ±18 V
  • 550 μA typical power supply current
  • Excellent AC specifications
    • 90 dB minimum CMRR
    • 130 kHz bandwidth
  • High accuracy DC performance
    • 5 ppm maximum gain nonlinearity
    • 10 µV/°C maximum offset voltage drift
    • 5 ppm/°C maximum gain drift
Part Number No. of
Channels
Common-Mode
Voltage Range (V)
Bandwidth Typ
(kHz)1
System Input
Voltage Offset
TC Max (u/°C)
Gain Drift
Max (ppm/°C)
 
AD8271 1 –VS – 0.4 to +VS + 0.4 15,000 2 (typ) 2 Datasheet
AD8275 1 –12.3 to +12 15,000 7 1 Datasheet
AD8276
AD8277
1/2 −2 (VS + 0.1) to +2 (VS − 1.5) 550 2 1 Datasheet
AD8278
AD8279
1/2 −3 (VS + 0.1) to +3 (VS − 1.5) 1000 1 1 Datasheet
AD8475 1 –12.5 to +12.5 150000 2.5 (typ) 3 Datasheet
AD8476 1 −2 (VS + 0.05) to +2 (VS − 0.05) 6000 4 1 Datasheet
AD8479A   ±600 130 15 10 Datasheet
AD8479B   ±600 130 10 5 Datasheet

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Variable Gain Amplifiers (VGAs)

Variable gain amplifiers (VGAs) have been used in a variety of remote sensing and communications equipment for more than a half-century. Applications ranging from ultrasound, radar, lidar to wireless communications—and even speech analysis—have utilized variable gain in an attempt to enhance dynamic performance.

AD8338 : Low Power, 18MHz Variable Gain Amplifier

Ad8338

FEATURES AND BENEFITS

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  • Voltage controlled gain range of 0 dB to 80 dB
  • 3 mA supply current at gain of 40 dB
  • Low frequency (LF) to 18 MHz operation
  • Supply range: 3.0 V to 5.0 V
  • Low noise: 4.5nV/√Hz at 80 dB gain
  • Fully differential signal path
  • Offset correction (offset null) feature
  • Internal 1.5 V reference
  • 16-lead LFCSP
  • Automatic gain control feature
  • Wide gain range for high dynamic range signals
Part Number No. of Channels -3dB Bandwidth Gain Control Gain/Attenuate (min) Gain/Attenuate (max)  
AD8264 4 235MHz Analog 0dB 24dB Datasheet
AD8338 1 18MHz Analog 0dB 80dB Datasheet

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