OPA2675中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

1 Features

? Wideband operation: 340 MHz (G = 4V/V)

? Unity-gain stable: 730 MHz (G = 1V/V)

? High output current: ±1000 mA

? Active off-line mode for TDMA

? Adjustable power modes:

– Full-bias mode: 16.5 mA/channel

– 75 bias mode: 12.5 mA/channel

– 50 bias mode: 8.5 mA/channel

– Off-Line mode: 2.4 mA/channel

? Bipolar-supply range: ±2.5 V to ±6.5 V

? Single-supply range: 4.5 V to 13 V

? High slew rate: 3500 V/μs

? Overtemperature protection circuit

? Output current limit (±1.3 A)

2 Applications

? Power-line modems

? Matched I/Q channel amplifiers

? Broadband video line drivers

? ARB line drivers

? High cap load drivers

? Ultrasonic-Piezo drivers

3 Description

The OPA2675 provides the high output current

and low distortion required for power-line modem

driver and test and measurement applications. The

OPA2675 operates on power-supplies ranging from

4.5 V to 13 V and consumes a low 16.5 mA/channel

quiescent current to deliver a very high 1000 mA

output current. The OPA2675 can support the most

demanding power-line modem requirements with 850

mA assured minimum output current drive (at 25 °C).

Power control features are included to minimize

system power consumption. Two logic control lines

allow for four quiescent power settings: full power,

75 bias power, 50 bias power and offline mode

with active offline control to present a high impedance

with large signals present at the output pin. The two

channels of OPA2675 can be used independently

as individual op amps or can be configured as a

differential-input to differential-output, high current line

driver.