OPA2674
SBOS270A − AUGUST 2003 − REVISED MAY 2006
Dual Wideband, High Output Current
Operational Amplifier with Current Limit
FD EATURES
DESCRIPTION
WIDEBAND +12V OPERATION: 220MHz (G = +4)
UNITY-GAIN STABLE: 250MHz (G = +1)
HIGH OUTPUT CURRENT: 500mA
The OPA2674 provides the high output current and low
distortion required in emerging xDSL and Power Line
Modem driver applications. Operating on a single +12V
supply, the OPA2674 consumes a low 9mA/ch quiescent
current 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.
Differential 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.
D
D
D
D
D
D
D
OUTPUT VOLTAGE SWING: 10V
HIGH SLEW RATE: 2000V/µs
LOW SUPPLY CURRENT: 18mA
FLEXIBLE POWER CONTROL: SO-14 Only
OUTPUT CURRENT LIMIT ( 800mA)
PP
AD PPLICATIONS
POWER LINE MODEM
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
include 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.
D
D
D
D
D
D
xDSL LINE DRIVERS
CABLE MODEM DRIVERS
MATCHED I/Q CHANNEL AMPLIFIERS
BROADBAND VIDEO LINE DRIVERS
ARB LINE DRIVERS
Specified on 6V supplies (to support +12V operation), the
OPA2674 will also support a single +5V or dual 5V
supply. 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.
HIGH CAP LOAD DRIVER
OPA2674 RELATED PRODUCTS
SINGLES
OPA691
DUALS
OPA2691
THS6042
OPA2677
TRIPLES
OPA3691
NOTES
Single +12V Capable
15V Capable
Single +12V Capable
+12V
Ω
20
1/2
O PA2674
Ω
Ω
17.4
Ω
324
1:1.7
µ
1 F
Ω
Ω
2k
2k
+6.0V
Ω
100
AFE
Output
2VPP
17.7VPP
17.4
15VPP
Twisted Pair
Ω
82.5
Ω
324
1/2
O PA2674
Ω
20
Single−Supply CPE Upstream Driver
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