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FEATURES

HIGH BANDWIDTH: 220MHz (G = +2)

HIGH OUTPUT CURRENT: ±85mA

LOW INPUT NOISE: 2.5nV/√Hz

LOW SUPPLY CURRENT: 5.7mA/ch

FLEXIBLE SUPPLY VOLTAGE:

±2V to ±6.3V Dual Supply

+4V to +12.6V Single Supply

EXCELLENT DC ACCURACY:

Maximum 25°C Input Offset Voltage = 0.8mV

Maximum 25°C Input Offset Current = 500nA

APPLICATIONS

LOW-COST VIDEO LINE DRIVERS

ADC PREAMPS

ACTIVE FILTERS

LOW-NOISE INTEGRATORS

PORTABLE TEST EQUIPMENT

OPTICAL CHANNEL AMPLIFIERS

LOW-POWER, BASEBAND AMPLIFIERS

CCD IMAGING CHANNEL AMPLIFIERS

OPA4650 UPGRADE

DESCRIPTION

The OPA4820 provides a wideband, unity-gain stable,

voltage-feedback amplifier with a very low input noise

voltage and high output current using a low 5.7mA/ch

supply current. At unity-gain, the OPA4820 gives

> 600MHz bandwidth with < 1 dB peaking. The OPA4820

complements this high-speed operation with excellent DC

precision in a low-power device. A worst-case input offset

voltage of ±0.8mV and an offset current of ±500nA give

excellent absolute DC precision for pulse amplifier

applications.

Minimal input and output voltage swing headroom allow

the OPA4820 to operate on a single +5V supply with

> 2VPP output swing. While not a rail-to-rail (RR) output,

this swing will support most emerging analog-to-digital

converter (ADC) input ranges with lower power and noise

than typical RR output op amps.

Exceptionally low dG/dP (0.01%/0.03°) supports low-cost

composite video line driver applications. Existing designs

can use the industry-standard quad pinout SO-14 package

while emerging high-density portable applications can use

the TSSOP-14.