Amplifiers for Every Application

Precision op-amplifiers (<50MHz)

Featured Precision Amplifier:
ADA4530-1 Femptoampere Input Bias
Current Electrometer Amplifier

• Ultra low input bias current
• ±20 fA maximum at TA = 25°C (production test)
• ±20 fA maximum at −40°C < TA < +85°C
• ±250 fA maximum at −40°C < TA < +125°C (production test)
• Low offset voltage: 50 µV maximum over specified CMRR range
• Offset drift: 0.13 µV/°C typical, 0.5 µV/°C maximum
• Integrated guard buffer with 100 µV maximum offset
• Low voltage noise density: 14 nV/√Hz at 10 kHz
• Wide bandwidth: 2 MHz unity-gain crossover
• Supply voltage: 4.5 V to 16 V (±2.25 V to ±8 V)
• Operating temperature: −40°C to +125°C

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.

Click here for complete portfolio of Precision amplifiers

Part Number	No. of Amps	Vs span (min/max)	Iq/Amp (typ)	Ibias (max)	Vos (max)	Vos TC (typ)	GBP (typ)	Slew Rate (typ)	0.1 to 10 Hz VNoise (typ)	VNoise Density (typ)
		(V)	(A)	(A)	(V)	(V/°C)	(Hz)	(V/us)	(V p-p)	(V/rtHz)
ADA4530-1	1	4.5 – 16	900µ	20f	40µ	0.13µ	2M	1.4	4µ	14n
ADA4350	1	3.3 – 12	8.5m	1p	80µ	100n	175M	100		5n
ADA4622-1	1	5 – 30	715µ	10p	350µ	2µ	8M	23	750n	12.5n
ADA4622-2	2	5 – 30	715µ	10p	350µ	2µ	8M	23	750n	12.5n
ADA4622-4	4	5 – 30	715µ	10p	350µ	2µ	8M	23	750n	12.5n
ADA4522-1	1	4.5 – 55	840µ	150p	5µ	2.5n	2.7M	1.7	117n	5.8n
ADA4522-2	2	4.5 – 55	840µ	150p	5µ	2.5n	2.7M	1.7	117n	5.8n
ADA4522-4	4	4.5 – 55	840µ	150p	5µ	2.5n	2.7M	1.7	117n	5.8n
ADA4177-1	1	10 – 30	500µ	1n	60µ	1µ	3.5M	1.5	175n	8n
ADA4177-2	2	10 – 30	500µ	1n	60µ	1µ	3.5M	1.5	175n	8n
ADA4177-4	4	10 – 30	500µ	1n	60µ	1µ	3.5M	1.5	175n	8n
ADA4077-1	1	5 – 30	400µ	1n	35µ	250n	3.9M	1	250n	7n
ADA4077-2	2	5 – 30	400µ	1n	35µ	250n	3.9M	1	250n	7n
ADA4077-4	4	2	400µ	1n	35µ	250n	3.9M	1	250n	7n
ADA4084-1	1	3 – 30	625µ	400n	100µ	500n	15.9M	4.6	100n	3.9n
ADA4084-2	2	3 – 30	625µ	400n	100µ	500n	15.9M	4.6	100n	3.9n
ADA4084-4	4	3 – 30	625µ	400n	100µ	500n	15.9M	4.6	100n	3.9n
ADA4528-1	1	2.2 – 5.5	1.4m	250p	2.5µ	2n	3.4M	500m	99n	5.9n
ADA4528-2	2	2.2 – 5.5	1.4m	250p	2.5µ	2n	3.4M	500m	99n	5.9n
ADA4661-2	2	3 – 18	630µ	3p	100µ	600n	4M	2.2	3µ	18n
AD8622	2	5 – 36	215µ	200p	125µ	500n	560k	480m	200n	11n
AD8624	4	5 – 36	215µ	200p	125µ	500n	560k	480m	200n	11n
ADA4610-1	1	10 – 36	1.6m	25p	400µ	1µ	16.3M	25	450n	7.3n
ADA4610-2	2	10 – 36	1.6m	25p	400µ	1µ	16.3M	25	450n	7.3n
ADA4610-4	4	10 – 36	1.6m	25p	400µ	1µ	16.3M	25	450n	7.3n
ADA4500-2	2	2.7 – 5.5	1.55m	2p	120µ	900n	10M	5.5	2µ	14.5n

High Speed Amplifiers (>50MHz)

Featured High Speed Amplifier:
ADA4807-1/-2/-4: 3.1 nV/√Hz, 1 mA, 180 MHz, Rail-to-Rail Input/Output Amplifiers

• Low Noise
  3.1 nV/√Hz at 100 kHz
  0.7 pA/√Hz at 100 kHz
• Low Distortion (HD2/HD3)
  -141/-144 dBc at 1 kHz
  -112/-115 dBc at 100 kHz
  -95/-79 dBc at 1 MHz
• High speed performance
  -3dB bandwidth: 200 MHz
  Slew Rate: 225 V/µs
  0.1% Settling Time: 47 ns
• Low input offset voltage and drift
  ±20 / ±125 µV (typical / max)
  0.7 /3.7 µV/°C (typical)
• Low input offset current and drift
  8 / 100 nA (typical / max)
  30 / 250 pA/°C (typical / max)
• Rail-to-Rail Input and Output
• Low quiescent current:
  Enabled: 1 mA at ±5V
  Disabled: 2.4 µA at ±5V
• Wide supply range:
  2.7 V to 11 V
• Small Packaging:
  6-lead SC70, 6-lead SOT-23

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.

Click here for complete portfolio of High Speed amplifiers

Part Number	No. of Amps	Vs span (min/max)	Iq/Amp (typ)	BW -3 dB (typ)	Slew Rate (typ)	VNoise Density (typ)	Ibias (typ)
		(V)	(A)	(Hz)	(V/us)	(V/rtHz)	(A)
ADA4807-1	1	2.7 – 11	1m	180M	225	3.3n	1.2µ
ADA4807-2	2	2.7 – 11	1m	180M	225	3.3n	1.2µ
ADA4807-4	4	2.7 – 11	1m	180M	225	3.3n	1.2µ
ADA4806-1	1	3 – 10	570µ	105M	160	5.2n	550n
ADA4805-1	2	2.7 – 10	570µ	105M	160	5.9n	550n
ADA4805-2	2	2.7 – 10	570µ	105M	160	5.9n	550n
ADA4870	1	10 – 40	32.5m	52M	2.5k	2.1n	9µ
ADA4895-1	1	3 – 10	3m	236M	943	1n	11µ
ADA4895-2	2	3 – 10	3m	236M	943	1n	11µ
ADA4896-2	2	3 – 10	3m	230M	120	1n	11µ
ADA4897-1	1	3 – 10	3m	230M	120	1n	11µ
ADA4897-2	2	3 – 10	3m	230M	120	1n	11µ
ADA4891-1	1	2.7 – 5.5	4.4m	220M	170	9n	2p
ADA4891-2	2	2.7 – 5.5	4.4m	220M	170	9n	2p
ADA4891-3	3	2.7 – 5.5	4.4m	220M	170	9n	2p
ADA4891-4	4	2.7 – 5.5	4.4m	220M	170	9n	2p
ADA4898-1	1	9 – 36	7.9m	65M	55	900p	100n
ADA4898-2	2	9 – 36	7.9m	65M	55	900p	100n

Instrumentation Amplifiers

Featured Instrumentation Amplifier:
AD8422: High Performance, Low Power, Rail-to-Rail Precision Instrumentation Amplifier

• Low power:
  330 µA maximum quiescent current
  Rail-to-rail output
• Low noise and distortion
  8 nV/√Hz maximum input voltage noise at 1 kHz
  0.15 µV p-p RTI noise (G = 100)
  0.5 ppm nonlinearity with 2 kΩ load (G = 1)
• Excellent AC specifications
  80 dB minimum CMRR at 10 kHz (G = 1)
  2.2 MHz bandwidth (G = 1)
• High precision DC performance (AD8422BRZ)
  150 dB minimum CMRR (G = 1000)
  0.04% maximum gain error (G = 1000)
  0.3 µV/°C maximum input offset drift
  0.5 nA maximum input bias current
• Wide supply range
  4.6 V to 36 V single supply
  ±2.3 V to ±18 V dual supply
• Input overvoltage protection:
  40 V from opposite supply
  Gain range: 1 to 1000

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.

Click here for complete portfolio of Instrumentation Amplifiers

Part Number	Gain Set	Gain (min/max)	Input Voltage Noise (typ)	BW - low gain (typ)	Iq/Amp (max)	Vs span (min/max)	Ibias (max)	No. of Amps
		(V/V)	(V/V)	(V/rtHz)	(Hz)	(A)	(V)	(A)
AD8420	Resistor	1 – 1000	45n	250k	100µ	2.7 – 36	27n	1
AD8421	Resistor	1 – 1000	3.2n	10M	2.3m	5 – 36	1n	1
AD8422	Resistor	1 – 1000		2.2M	300µ	3.6 – 36	500p	1
AD8426	Resistor	1 – 1000	24n	1.5M	425µ	2.2 – 36	30n	2
AD8428	Fixed Gain	2000	1.3n	3.5M	6.8m	8 – 36	50n	1
AD8429	Resistor	1 – 10000	1n	15M	7m	8 – 36	150n	1
AD8226	Resistor	1 – 1000	22n	1.5M	425µ	2.2 – 36	27n	1
AD8227	Resistor	5 – 1000	24n	250k	425µ	2.2 – 36	27n	1
AD8228	Pin Strap	10 – 100	9n	650k	1m	4.6 – 36	600p	1
AD8229	Resistor	1 – 1000	1n	15M	7m	8 – 34	70n	1
AD8235	Resistor	5 – 200	70n	23k	40µ	1.8 – 5.5	50p	1
AD8236	Resistor	5 – 200	70n	23k	40µ	1.8 – 5.5	10p	1
AD8237	Resistor	1 – 1000	70n	200k	130µ	1.8 – 5.5	650p	1

Current Sense Amplifiers

Featured Current Sense Amplifier:
AD8209A: High Voltage, Precision Difference Amplifier

• ±8000 V HBM ESD for shunt-based applications
• AEC-Q100 qualified
• EMI filters included
• High common-mode voltage range
• −20 V to +70 V survival
• −2 V to +50 V operating
• Buffered output voltage
• Gain = 14 V/V
• Low-pass filter (single-pole or two-pole)
• Wide operating temperature range: −40°C to +125°C
• Excellent AC/DC performance
• ±1 mV voltage offset
• −5 ppm/°C typical gain drift
• 80 dB CMRR minimum DC to 10 kHz
• Qualified for automotive applications

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.

Click here for complete portfolio of Current Sense Amplifiers

Part Number	EMI Filter Option	Common Mode In (min/max)	Vos TC (max)	Gain (typ)	Vs span (min/max)	BW -3 dB (typ)	CMRR (min)	Vin direction	Reliability Level
		(V)	(V/°C)	(V/V)	(V)	(Hz)	(dB)
AD8209A	Yes	-2 –70	20µ	14	4.5 – 5.5	100k	-80	Uni-directional	Automotive
AD8209A	Yes	-2 –70	400n	20	2.7 – 5.5	250k	-90	Bi-directional	Automotive, DIE
AD8417	Yes	-2 –70	400n	60	2.7 – 5.5	250k	-90	Bi-directional	Automotive
AD8418	No	-2 –70	1µ	20	2.7 – 5.5	250k	-90	Bi-directional	Automotive
AD8217	No	4.5 – 80	100n (typ)	20	4.5 – 80	500k	-90	Uni-directional
AD8218	No	4 – 80	100n (typ)	20	4 – 80	450k	-90	Bi-directional
AD8219	No	4 – 80	100n (typ)	60	4 – 80	500k	-94	Uni-directional

Difference Amplifiers

Featured Difference Amplifier:
AD8479: ±600 V Common-Mode Voltage Precision Difference Amplifier

• ±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

A difference amplifier is a special purpose amplifier designed to measure differential signals, otherwise known as a subtractor. 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.

Click here for complete portfolio of Difference Amplifiers

Part Number	Common Mode In (min/max)	Input Beyond Supply	Gain (min/max)	BW - low gain (typ)	Slew Rate (typ)	Iq/Amp (max)	Vs span (min/max)	No. of Amps
	(V)	(V)	(V/V)	(V/V)	(Hz)	(V/us)	(A)
AD8479	-600 – 600	Yes	1 – 1	130k	7.5	650µ	5 – 36	1
ADA4830-1	-600 – 600	Yes	1 – 1	300	7.5	2.9	5.5	2
ADA4830-2	-600 – 600	Yes	1 – 1	300	7.5	2.9	5.5	1
AD8279	-45.3 – 40.5	Yes	0.5 – 2	1M	1.3	350µ	2 – 36	2
AD8278	-45.3 – 40.5	Yes	0.5 – 2	1M	1.4	200µ	2 – 36	1
AD8277	-30.2 – 27	Yes	1 – 1	550k	1.1	200µ	2 – 36	2
AD8276	-30.2 – 27	Yes	1 – 1	550k	1.1	200µ	2 – 36	1
AD8274	-40.5 – 40.5	Yes	0.5 – 2	20M	1.1	2.6m	5 – 36	1
AD8273	-40.5 – 40.5	Yes	0.5 – 3	20M	20	2.5m	5 – 36	2
AD8271	-15.4 – 15.4	Yes	0.5 – 2	20M	30	2.6m	5 – 36	1
AD8270	-15.4 – 15.4	Yes	0.5 – 2	20M	30	2.5m	5 – 36	2

Variable Gain Amplifiers (VGAs)

Featured VGA Amplifier:
AD8338: Low Power, 18MHz Variable Gain Amplifier

• 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: 4.5 nV/√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

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.

Click here for complete portfolio of Variable Gain Amplifiers

Part Number	No. of Channel	Gain Control	Gain (min)	Gain (max)	Is (typ)
		(Hz)	(dB)	(dB)	(A)
AD8338	1	Analog	0	80	3m
AD8264	4	Analog	0	24	99m

Resources & Tools

Amplifier and Standard Linear Selection Guide

The new Amplifier and Standard Linear Selection Guide includes product information and design resources for instrumentation, current sense, difference, variable gain amplifiers, and precision voltage references. It is your go-to source for navigating ADI’s amplifier and voltage reference product offerings. Quick product selection and equation charts: High Speed Operational Amplifier Quick Selection Guide Precision Operational Amplifier Quick Selection Guide Instrumentation, Difference, Current Sense, and Variable Gain Amplifier Quick Selection Guide Precision Voltage References Quick Selection Guide Amplifier Design Equation