OPA2684

Features: MINIMAL BANDWIDTH CHANGE VERSUS GAIN 170MHz BANDWIDTH AT G = +2 > 120MHz BANDWIDTH TO GAIN > +10 LOW DISTORTION: < 82dBc at 5MHz HIGH OUTPUT CURRENT: 120mA SINGLE +5V TO +12V SUPPLY OPERATION DUAL ±2.5 TO ±6.0V SUPPLY OPERATION LOW SUPPLY CURRENT: 3.4mA TotalApplicationSHORT-LOO...

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OPA2684 Picture
SeekIC No. : 004438218 Detail

OPA2684: Features: MINIMAL BANDWIDTH CHANGE VERSUS GAIN 170MHz BANDWIDTH AT G = +2 > 120MHz BANDWIDTH TO GAIN > +10 LOW DISTORTION: < 82dBc at 5MHz HIGH OUTPUT CURRENT: 120mA SINGLE +5V TO +12V SUPP...

floor Price/Ceiling Price

Part Number:
OPA2684
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: 2024/11/12

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Product Details

Description



Features:

 MINIMAL BANDWIDTH CHANGE VERSUS GAIN
170MHz BANDWIDTH AT G = +2
> 120MHz BANDWIDTH TO GAIN > +10
LOW DISTORTION: < 82dBc at 5MHz
HIGH OUTPUT CURRENT: 120mA
SINGLE +5V TO +12V SUPPLY OPERATION
DUAL ±2.5 TO ±6.0V SUPPLY OPERATION
LOW SUPPLY CURRENT: 3.4mA Total



Application

 SHORT-LOOP ADSL CO DRIVER
LOW-POWER BROADCAST VIDEO DRIVERS
DIFFERENTIAL EQUALIZING FILTERS
DIFFERENTIAL SAW FILTER POST AMPLIFIER
MULTICHANNEL SUMMING AMPLIFIERS
PROFESSIONAL CAMERAS
ADC INPUT DRIVERS



Pinout

  Connection Diagram


Specifications

Power Supply ............................................................................... ±6.5VDC
Internal Power Dissipation ................................. See Thermal Information
Differential Input Voltage ................................................................ ±1.2V
Input Voltage Range ........................................................................... ±VS
Storage Temperature Range: ID, IDBV ....................... 40°C to +125°C
Lead Temperature (soldering, 10s) ............................................. +300°C
Junction Temperature (TJ ) .......................................................... +175°C
ESD Rating: Human Body Model (HBM) ........................................... 2000V
Charged Device Model (CDM) ......................................................... 1500V
NOTE: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability.



Description

The OPA2684 provides a new level of performance in lowpower, wideband, current-feedback (CFB) amplifiers. This CFBPLUS amplifier is among the first to use an internally closed-loop input buffer stage that enhances performance significantly over earlier low-power CFB amplifiers. While retaining the benefits of very low power operation, this new architecture provides many of the benefits of a more ideal CFB amplifier. The closed-loop input stage buffer gives a very low and linearized impedance path at the inverting input to sense the feedback error current. This improved inverting input impedance retains exceptional bandwidth to much higher gains and improves harmonic distortion over earlier solutions limited by inverting input linearity. Beyond simple high-gain applications, the OPA2684 CFBPLUS amplifier permits the gain setting element to be set with considerable freedom from amplifier bandwidth interaction. This allows frequency response peaking elements to be added, multiple input inverting summing circuits to have greater bandwidth, and low-power line drivers to meet the demanding requirements of studio cameras and broadcast video.

The output capability of the OPA2684 also sets a new mark in performance for low-power, current-feedback amplifiers. Delivering a full ±4Vp-p swing on ±5V supplies, the OPA2684 also has the output current to support > ±3Vp-p into 50 loads. This minimal output headroom requirement is complemented by a similar 1.2V input stage headroom giving exceptional capability for single +5V operation.

The OPA2684's low 3.4mA supply current is precisely trimmed at +25°C. This trim, along with low shift over temperature and supply voltage, gives a very robust design over a wide range of operating conditions.




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