OPA2675 Dual, High Output Current

Operational Amplifier With Active Off-Line Control

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.

Package Information(1)(2)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

OPA2675

VQFN (16)

4.00 mm × 4.00 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

See the Device Comparison Table

348 Ω

2 kΩ

2 kΩ

1 mF

5 Ω

50 Ω

511 Ω

511 Ω

1/2

OPA2675

1/2

OPA2675

+12 V

1:1.4

8 V

PP

5 Ω

+6.0 V

2 V

PP

Single-Supply PLC Line Driver

-

+

–6 V

+6 V

50-

Transmission

Line (TL2)

–

+

–6 V

+6 V

U1

U1

+

OPA2675

OPA2675

100

40.2

35.7

250

100

50

50

40.2

35.7

250

30

50 Ω Transmission Line Driver

OPA2675

SBOSAA5B – APRIL 2022 – REVISED SEPTEMBER 2022

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.