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AD842

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AD8428 [Low Noise, Low Gain Drift, G = 2000 Instrumentation Amplifier ]

other parts : AD8428ARZ  AD8428BRZ  AD8428ARZ-RL  AD8428BRZ-RL 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8428 is an ultralow noise instrumentation amplifier designed to accurately measure tiny, high speed signals. It delivers industry-leading gain accuracy, noise, and bandwidth.
All gain setting resistors for the AD8428 are internal to the part and are precisely matched. Care is taken in both the chip pinout and layout. This results in excellent gain drift and quick settling to the final gain value after the part is powered on.
The high CMRR of the AD8428 prevents unwanted signals from corrupting the signal of interest. The pinout of the AD8428 is designed to avoid parasitic capacitance mismatches that can degrade CMRR at high frequencies.

FEATURES
   Fixed gain of 2000
   Access to internal nodes provides flexibility
   Low noise: 1.5 nV/√Hz input voltage noise
   High accuracy dc performance
      Gain drift: 5 ppm/°C
      Offset drift: 0.3 μV/°C
      Gain accuracy: 0.05%
      CMRR: 140 dB min
   Excellent ac specifications
      Bandwidth: 3.5 MHz
      Slew rate: 40 V/μs
   Power supply range: ±4 V to ±18 V
   8-lead SOIC package
   ESD protection: 5000 V (HBM)
   Temperature range for specified performance:
      −40°C to +85°C
   Operational up to 125°C

APPLICATIONS
   Sensor interface
   Medical instrumentation
   Patient monitoring

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AD8429 [1 nV/√Hz Low Noise Instrumentation Amplifier ]

other parts : AD8429ARZ  AD8429BRZ  AD8429ARZ-R7  AD8429BRZ-R7 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8429 is an ultralow noise, instrumentation amplifier designed for measuring extremely small signals over a wide temperature range (−40°C to +125°C).
The AD8429 excels at measuring tiny signals. It delivers ultralow input noise performance of 1 nV/√Hz. The high CMRR of the AD8429 prevents unwanted signals from corrupting the acquisition. The CMRR increases as the gain increases, offering high rejection when it is most needed. The high performance pin configuration of the AD8429 allows it to reliably maintain high CMRR at frequencies well beyond those of typical instrumentation amplifiers.

FEATURES
   Low noise
      1 nV/√Hz input noise
      45 nV/√Hz output noise
   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

APPLICATIONS
   Medical instrumentation
   Precision data acquisition
   Microphone preamplification
   Vibration analysis

View
AD8420 [Wide Supply Range, Micropower, Rail-to-Rail Instrumentation Amplifier ]

other parts : AD8420ARMZ  AD8420ARMZ-R7  AD8420ARMZ-RL 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8420 is a low cost, micropower, wide supply range, instrumentation amplifier with a rail-to-rail output and a novel architecture that allows for extremely flexible design. It is optimized to amplify small differential voltages in the presence of large common-mode signals.
The AD8420 is based on an indirect current feedback architecture that gives it an excellent input common-mode range. Unlike conventional instrumentation amplifiers, the AD8420 can easily amplify signals at or even slightly below ground without requiring dual supplies. The AD8420 has rail-to-rail output, and the output voltage swing is completely independent of the input common mode voltage.

FEATURES
   Maximum supply current: 90 μA
   Minimum CMRR: 100 dB
   Drives heavy capacitive loads: ~700 pF
   Rail-to-rail output
   Input voltage range goes below ground
   Gain set with 2 external resistors
      Can achieve low gain drift at any gain
   Very wide power supply range
      Single supply: 2.7 V to 36 V
      Dual supply: ±2.7 V to ±18 V
   Bandwidth (G = 100): 2.5 kHz
   Input voltage noise: 55 nV/√Hz
   High dc precision
      Maximum offset voltage: 125 μV
      Maximum offset drift: 1 μV/°C
   Maximum differential input voltage: ±1 V
   8-lead MSOP package

APPLICATIONS
   Bridge amplifiers
   Pressure measurement
   Medical instrumentation
   Portable data acquisition
   Multichannel systems

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AD8421 [3 nV/√Hz, Low Power Instrumentation Amplifier ]

other parts : AD8421BRZ  AD8421ARZ  AD8421ARMZ  AD8421BRMZ  AD8421ARZ-RL  AD8421ARZ-R7  AD8421BRZ-RL  AD8421BRZ-R7  AD8421ARMZ-RL  AD8421BRMZ-R7 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8421is a low cost, low power, extremely low noise, ultra low bias current, high speed instrumentation amplifier that is ideally suited for a broad spectrum of signal conditioning and data acquisition applications. This product features extremely high CMRR, allowing it to extract low level signals in the presence of high frequency common-mode noise over a wide temperature
range. The 10 MHz bandwidth, 35 V/μs slew rate, and 0.6 μs settling time to 0.001% (G = 10) allow the AD8421to amplify high speed signals and excel in applications that require high channel count, multiplexed systems. Even at higher gains, the current feedback architecture maintains high performance; for example, at G = 100, the bandwidth is 2 MHz and the settling time is 0.8 μs. The
AD8421has excellent distortion performance, making it suitable for use in demanding applications such as vibration analysis.

FEATURES
Low power
2.3 mA maximum supply current
Low noise
3.2 nV/√Hz maximum input voltage noise at 1 kHz
200 fA/√Hz current noise at 1 kHz
Excellent ac specifications
10 MHz bandwidth (G = 1)
2 MHz bandwidth (G = 100)
0.6 μs settling time to 0.001% (G = 10)
80 dB CMRR at 20 kHz (G = 1)
35 V/μs slew rate
High precision dc performance (AD8421BRZ)
94 dB CMRR minimum (G = 1)
0.2 μV/°C maximum input offset voltage drift
1 ppm/°C maximum gain drift (G = 1)
500 pA maximum input bias current
Inputs protected to 40 V from opposite supply
±2.5 V to ±18 V dual supply (5 V to 36 V single supply)
Gain set with a single resistor (G = 1 to 10,000)

APPLICATIONS
Medical instrumentation
Precision data acquisition
Microphone preamplification
Vibration analysis
Multiplexed input applications
ADC driver

SPECIFICATIONS
VS= ±15 V, VREF= 0 V, TA= 25°C, G = 1, RL= 2 kΩ, unless otherwise noted.

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AD8422 [High Performance, Low Power, Rail-to-Rail Precision Instrumentation Amplifier ]

other parts : AD8422BRZ  AD8422ARZ  AD8422ARMZ  AD8422BRMZ  AD8422ARZ-RL  AD8422ARZ-R7  AD8422BRZ-RL  AD8422BRZ-R7  AD8422ARMZ-RL  AD8422BRMZ-R7 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8422 is a high precision, low power, low noise, rail-to-rail instrumentation amplifier that delivers the best performance per unit microampere in the industry. The AD8422 processes signals with ultralow distortion performance that is load independent over its full output range.
The AD8422 is the third generation development of the industry standard AD620. The AD8422 employs new process technologies and design techniques to achieve higher dynamic range and lower errors than its predecessors, while consuming less than one-third of the power. The AD8422 uses the high performance pinout introduced by the AD8221.
Very low bias current makes the AD8422 error-free with high source impedance, allowing multiple sensors to be multiplexed to the inputs. Low voltage noise and low current noise make the AD8422 an ideal choice for measuring a Wheatstone bridge.

FEATURES
  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 7 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
     3.6 V to 36 V single supply
     ±1.8 V to ±18 V dual supply
  Input overvoltage protection: 40 V from opposite supply
  Gain range: 1 to 1000

APPLICATIONS
  Medical instrumentation
  Industrial process controls
  Strain gages
  Transducer interfaces
  Precision data acquisition systems
  Channel-isolated systems
  Portable instrumentation

 

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AD8426 [Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier ]

other parts : AD8426ACPZ-R7  AD8426ACPZ-WP  AD8426BCPZ-R7  AD8426BCPZ-WP 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8426 is a dual-channel, low cost, wide supply range instrumentation amplifier that requires only one external resistor to set any gain from 1 to 1000.
The AD8426 is designed to work with a variety of signal voltages. A wide input range and rail-to-rail output allow the signal to make full use of the supply rails. Because the input range can also go below the negative supply, small signals near ground can be amplified without requiring dual supplies. The AD8426 operates on supplies ranging from ±1.35 V to ±18 V for dual supplies and 2.2 V to 36 V for a single supply.
The robust AD8426 inputs are designed to connect to real world sensors. In addition to its wide operating range, the AD8426 can handle voltages beyond the rails. For example, with a ±5 V supply, the part is guaranteed to withstand ±35 V at the input with no damage. Minimum and maximum input bias currents are specified to facilitate open-wire detection.

FEATURES
   2 channels in a small, 4 mm × 4 mm LFCSP
   LFCSP package has no metal pad
      More routing room
      No current leakage to pad
   Gain set with 1 external resistor
      Gain range: 1 to 1000
   Input voltage goes below ground
   Inputs protected beyond supplies
   Very wide power supply range
      Single supply: 2.2 V to 36 V
      Dual supply: ±1.35 V to ±18 V
   Bandwidth (G = 1): 1 MHz
   CMRR (G = 1): 80 dB minimum
   Input noise: 24 nV/√Hz
   Typical supply current (per amplifier): 350 μA
   Specified temperature range: −40°C to +125°C
  
APPLICATIONS
   Industrial process controls
   Bridge amplifiers
   Medical instrumentation
   Portable data acquisition
   Multichannel systems

View
AD8428ARZ [Low Noise, Low Gain Drift, G = 2000 Instrumentation Amplifier ]

other parts : AD8428  AD8428BRZ  AD8428ARZ-RL  AD8428BRZ-RL 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8428 is an ultralow noise instrumentation amplifier designed to accurately measure tiny, high speed signals. It delivers industry-leading gain accuracy, noise, and bandwidth.
All gain setting resistors for the AD8428 are internal to the part and are precisely matched. Care is taken in both the chip pinout and layout. This results in excellent gain drift and quick settling to the final gain value after the part is powered on.
The high CMRR of the AD8428 prevents unwanted signals from corrupting the signal of interest. The pinout of the AD8428 is designed to avoid parasitic capacitance mismatches that can degrade CMRR at high frequencies.

FEATURES
   Fixed gain of 2000
   Access to internal nodes provides flexibility
   Low noise: 1.5 nV/√Hz input voltage noise
   High accuracy dc performance
      Gain drift: 5 ppm/°C
      Offset drift: 0.3 μV/°C
      Gain accuracy: 0.05%
      CMRR: 140 dB min
   Excellent ac specifications
      Bandwidth: 3.5 MHz
      Slew rate: 40 V/μs
   Power supply range: ±4 V to ±18 V
   8-lead SOIC package
   ESD protection: 5000 V (HBM)
   Temperature range for specified performance:
      −40°C to +85°C
   Operational up to 125°C

APPLICATIONS
   Sensor interface
   Medical instrumentation
   Patient monitoring

View
AD8428BRZ [Low Noise, Low Gain Drift, G = 2000 Instrumentation Amplifier ]

other parts : AD8428  AD8428ARZ  AD8428ARZ-RL  AD8428BRZ-RL 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8428 is an ultralow noise instrumentation amplifier designed to accurately measure tiny, high speed signals. It delivers industry-leading gain accuracy, noise, and bandwidth.
All gain setting resistors for the AD8428 are internal to the part and are precisely matched. Care is taken in both the chip pinout and layout. This results in excellent gain drift and quick settling to the final gain value after the part is powered on.
The high CMRR of the AD8428 prevents unwanted signals from corrupting the signal of interest. The pinout of the AD8428 is designed to avoid parasitic capacitance mismatches that can degrade CMRR at high frequencies.

FEATURES
   Fixed gain of 2000
   Access to internal nodes provides flexibility
   Low noise: 1.5 nV/√Hz input voltage noise
   High accuracy dc performance
      Gain drift: 5 ppm/°C
      Offset drift: 0.3 μV/°C
      Gain accuracy: 0.05%
      CMRR: 140 dB min
   Excellent ac specifications
      Bandwidth: 3.5 MHz
      Slew rate: 40 V/μs
   Power supply range: ±4 V to ±18 V
   8-lead SOIC package
   ESD protection: 5000 V (HBM)
   Temperature range for specified performance:
      −40°C to +85°C
   Operational up to 125°C

APPLICATIONS
   Sensor interface
   Medical instrumentation
   Patient monitoring

View
AD8429ARZ [1 nV/√Hz Low Noise Instrumentation Amplifier ]

other parts : AD8429  AD8429BRZ  AD8429ARZ-R7  AD8429BRZ-R7 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8429 is an ultralow noise, instrumentation amplifier designed for measuring extremely small signals over a wide temperature range (−40°C to +125°C).
The AD8429 excels at measuring tiny signals. It delivers ultralow input noise performance of 1 nV/√Hz. The high CMRR of the AD8429 prevents unwanted signals from corrupting the acquisition. The CMRR increases as the gain increases, offering high rejection when it is most needed. The high performance pin configuration of the AD8429 allows it to reliably maintain high CMRR at frequencies well beyond those of typical instrumentation amplifiers.

FEATURES
   Low noise
      1 nV/√Hz input noise
      45 nV/√Hz output noise
   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

APPLICATIONS
   Medical instrumentation
   Precision data acquisition
   Microphone preamplification
   Vibration analysis

View
AD8429BRZ [1 nV/√Hz Low Noise Instrumentation Amplifier ]

other parts : AD8429  AD8429ARZ  AD8429ARZ-R7  AD8429BRZ-R7 

ADI
Analog Devices

GENERAL DESCRIPTION
The AD8429 is an ultralow noise, instrumentation amplifier designed for measuring extremely small signals over a wide temperature range (−40°C to +125°C).
The AD8429 excels at measuring tiny signals. It delivers ultralow input noise performance of 1 nV/√Hz. The high CMRR of the AD8429 prevents unwanted signals from corrupting the acquisition. The CMRR increases as the gain increases, offering high rejection when it is most needed. The high performance pin configuration of the AD8429 allows it to reliably maintain high CMRR at frequencies well beyond those of typical instrumentation amplifiers.

FEATURES
   Low noise
      1 nV/√Hz input noise
      45 nV/√Hz output noise
   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

APPLICATIONS
   Medical instrumentation
   Precision data acquisition
   Microphone preamplification
   Vibration analysis

View
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