OPA2674_17 Datasheet, PDF (1/36 Pages) Texas Instruments – Dual Wideband, High Output Current Operational Amplifier with Current Limit

OPA2674
SBOS270C − AUGUST 2003 − REVISED AUGUST 2008
Dual Wideband, High Output Current
Operational Amplifier with Current Limit
FEATURES
D WIDEBAND +12V OPERATION: 220MHz (G = +4)
D UNITY-GAIN STABLE: 250MHz (G = +1)
D HIGH OUTPUT CURRENT: 500mA
D OUTPUT VOLTAGE SWING: 10V_PP
D HIGH SLEW RATE: 2000V/µs
D LOW SUPPLY CURRENT: 18mA
D FLEXIBLE POWER CONTROL: SO-14 Only
D OUTPUT CURRENT LIMIT (±800mA)
APPLICATIONS
D POWER LINE MODEM
D xDSL LINE DRIVERS
D CABLE MODEM DRIVERS
D MATCHED I/Q CHANNEL AMPLIFIERS
D BROADBAND VIDEO LINE DRIVERS
D ARB LINE DRIVERS
D HIGH CAP LOAD DRIVER
OPA2674 RELATED PRODUCTS
SINGLES DUALS TRIPLES
NOTES
OPA691 OPA2691 OPA3691 Single +12V Capable

THS6042

±15V Capable

OPA2677

Single +12V Capable
+12V
20Ω
1 /2
O PA2674
324Ω
DESCRIPTION
The OPA2674 provides the high output current and low
distortion required in emerging xDSL and Power Line Mo-
dem driver applications. Operating on a single +12V sup-
ply, the OPA2674 consumes a low 9mA/ch quiescent cur-
rent to deliver a very high 500mA output current. This
output current supports even the most demanding ADSL
CPE requirements with > 380mA minimum output current
(+25°C minimum value) with low harmonic distortion. Dif-
ferential driver applications deliver < −85dBc distortion at
the peak upstream power levels of full rate ADSL. The high
200MHz bandwidth also supports the most demanding
VDSL line driver requirements.
Power control features are included in the SO-14 package
version to allow system power to be minimized. Two logic
control lines allow four quiescent power settings. These in-
clude full power, power cutback for short loops, idle state
for no signal transmission but line match maintenance,
and shutdown for power off with a high impedance output.
Specified on ±6V supplies (to support +12V operation), the
OPA2674 will also support a single +5V or dual ±5V sup-
ply. Video applications will benefit from a very high output
current to drive up to 10 parallel video loads (15Ω) with <
0.1%/0.1°dG/dP nonlinearity.
17.4Ω _1:1.7
AFE
Output
2V_PP
+6.0V
2kΩ
1µF
17.7V_PP
82.5Ω
2kΩ
324Ω
17.4Ω
15V_PP
Twisted Pair
100Ω
20Ω
1 /2
O PA2674
Single−Supply CPE Upstream Driver
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2003−2008, Texas Instruments Incorporated
www.ti.com