ADA4938-1

Features: `Extremely low harmonic distortion−108 dBc HD2 @ 10 MHz−79 dBc HD2 @ 70 MHz−125 dBc HD3 @ 10 MHz−87 dBc HD3 @ 70 MHz`Low input voltage noise: 2.2 nV/Hz`High speed−3 dB bandwidth of 1.5 GHz, G = 1Slew rate: 4700 V/s0.1 dB gain flatness to 125 MHzFast settling...

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SeekIC No. : 004273883 Detail

ADA4938-1: Features: `Extremely low harmonic distortion−108 dBc HD2 @ 10 MHz−79 dBc HD2 @ 70 MHz−125 dBc HD3 @ 10 MHz−87 dBc HD3 @ 70 MHz`Low input voltage noise: 2.2 nV/Hz`High speed&#...

floor Price/Ceiling Price

Part Number:
ADA4938-1
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/5

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Product Details

Description



Features:

`Extremely low harmonic distortion
−108 dBc HD2 @ 10 MHz
−79 dBc HD2 @ 70 MHz
−125 dBc HD3 @ 10 MHz
−87 dBc HD3 @ 70 MHz
`Low input voltage noise: 2.2 nV/Hz
`High speed
−3 dB bandwidth of 1.5 GHz, G = 1
Slew rate: 4700 V/s
0.1 dB gain flatness to 125 MHz
Fast settling to 0.01% in 8.5 ns
Fast overdrive recovery of 4 ns
`1 mV typical offset voltage
`Externally adjustable gain
`Differential to differential or single-ended to differential operation
`Adjustable output common-mode voltage
`Wide Supply Voltage Range: +5 V & ± 5 V
`Pb-free 3 mm x 3 mm LFCSP package





Application

·ADC drivers
·Single-ended-to-differential converters
·IF and baseband gain blocks
·Differential buffers
·Line drivers





Pinout

ADA4938-1 Diagram




Specifications

-3 dB BW (MHz) 1000MHz
Minimum Gain (Acl) 1
Supply Current 40mA
Slew Rate (V/us) 4700V/s
Distortion (2nd) (dBc) -82dBc
Distortion (3rd) (dBc) -82dBc
Package 16-Lead LFCSP,24-Lead LFCSP


Parameter Rating
Supply Voltage TBD
Power Dissipation See Figure 2
Storage Temperature Range 65°C to +125°C
Operational Temperature Range 40°C to +85°C
Lead Temperature (Soldering, 10 sec) 300°C
Junction Temperature 150°C
Stresses above those listed under Absolute Maximum Rating may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.




Description

The ADA4938-1 is a low noise, ultra-low distortion, high speed differential amplifier. It is an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 70 MHz. The output common mode voltage is adjustable over a wide range, allowing the ADA4938-1 to match the input of the ADC. The internal common mode feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion products.

Full differential and single-ended to differential gain configurations are easily realized with the ADA4938-1. A simple external feedback network of four resistors determines the amplifier's closed-loop gain.

The ADA4938-1 is fabricated using ADI's proprietary third generation high-voltage XFCB process, enabling it to achieve very low levels of distortion with input voltage noise of only 2.2 nV/Hz. The low dc offset and excellent dynamic performance of the ADA4938-1 make it well suited for a wide variety of data acquisition and signal processing and applications.

The ADA4938-1 is available in a Pb-free, 3 mm x 3mm lead frame chip scale package (LFCSP). It is specified to operate over the extended industrial temperature range of −40°C to +85°C.






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