OPA890IDBVR中文资料德州仪器数据手册PDF规格书

1FEATURES

2• FLEXIBLE SUPPLY RANGE:

+3V to +12V Single Supply

±1.5V to ±6V Dual Supplies

• UNITY-GAIN STABLE

• WIDEBAND +5V OPERATION: 115MHz

(G = +2V/V)

• OUTPUT VOLTAGE SWING: ±4V

• HIGH SLEW RATE: 500V/μs

• LOW QUIESCENT CURRENT: 1.1mA

• LOW DISABLE CURRENT: 30μA

APPLICATIONS

• VIDEO LINE DRIVING

• xDSL LINE DRIVERS/RECEIVERS

• HIGH-SPEED IMAGING CHANNELS

• ADC BUFFERS

• PORTABLE INSTRUMENTS

• TRANSIMPEDANCE AMPLIFIERS

• ACTIVE FILTERS

DESCRIPTION

The OPA890 represents a major step forward in

unity-gain stable, voltage-feedback op amps. A new

internal architecture provides slew rate and full-power

bandwidth previously found only in wideband,

current-feedback op amps. These capabilities provide

exceptional full power bandwidth. Using a single +5V

supply, the OPA890 can deliver a 1V to 4V output

swing with over 35mA drive current and 220MHz

bandwidth. This combination of features makes the

OPA890 an ideal RGB line driver or single-supply

analog-to-digital converter (ADC) input driver.

The low 1.1mA supply current of the OPA890 is

precisely trimmed at +25°C. This trim, along with low

temperature drift, ensures lower maximum supply

current than competing products. System power may

be reduced further using the optional disable control

pin. Leaving this disable pin open, or holding it HIGH,

operates the OPA890 normally. If pulled LOW, the

OPA890 supply current drops to less than 30μA while

the output goes into a high-impedance state.