OPA2690中文资料德州仪器数据手册PDF规格书

1FEATURES

2• FLEXIBLE SUPPLY RANGE:

+5V to +12V Single Supply

±2.5V to ±6V Dual Supply

• WIDEBAND +5V OPERATION: 220MHz (G = 2)

• HIGH OUTPUT CURRENT: 190mA

• OUTPUT VOLTAGE SWING: ±4.0V

• HIGH SLEW RATE: 1800V/ms

• LOW SUPPLY CURRENT: 5.5mA/ch

• LOW DISABLE CURRENT: 100mA/ch

APPLICATIONS

• VIDEO LINE DRIVING

• xDSL LINE DRIVER/RECEIVER

• HIGH-SPEED IMAGING CHANNELS

• ADC BUFFERS

• PORTABLE INSTRUMENTS

• TRANSIMPEDANCE AMPLIFIERS

• ACTIVE FILTERS

DESCRIPTION

The OPA2690 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. A new output stage

architecture delivers high currents with a minimal

headroom requirement. These give exceptional

single-supply operation. Using a single +5V supply,

the OPA2690 can deliver a 1V to 4V output swing with over 120mA drive current and 150MHz

bandwidth. This combination of features makes the

OPA2690 an ideal RGB line driver or single-supply

Analog-to-Digital Converter (ADC) input driver.

The low 5.5mA/ch supply current of the OPA2690 is

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

temperature drift, provides 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,

will operate the OPA2690I-14D normally. If pulled

LOW, the OPA2690I-14D supply current drops to less

than 200mA/ch while the output goes to a

high-impedance state.