®
OPA2607
OPA2607
OPA2607
For most current data sheet and other product
information, visit www.burr-brown.com
TM
Dual, High Output, Current-Feedback
OPERATIONAL AMPLIFIER
FEATURES
DESCRIPTION
The OPA2607 provides a high output voltage swing and low
distortion required for low turns ratio ADSL upstream driver
applications. Operating on a ±12V supply, the OPA2607 con-
sumes a low 8.0mA/channel quiescent current to deliver a very
high 250mA peak output current. Guaranteed output current of
180mA supports even the most demanding ADSL CPE require-
ments with low harmonic distortion. Differential driver applica-
tions will deliver < –75dBc distortion at the peak upstream power
levels of full rate ADSL. Using a differential driver design, as
shown below, the OPA2607 can deliver a high 38Vp-p voltage
swing into a 1:0.8 step-down transformer to meet the ADSL CPE
upstream power requirements. This low turns ratio actually pro-
vides a step up to the much weaker downstream signal arriving on
the line side of this transformer, extending the DSL modem’s
reach.
●
WIDEBAND ±12V OPERATION: 25MHz (G = +8)
● UNITY GAIN STABLE: 35MHz (G = +1)
● HIGH OUTPUT CURRENT: 250mA
● OUTPUT VOLTAGE SWING:
● HIGH SLEW RATE: 600V/µs
● LOW SUPPLY CURRENT: 8mA/channel
● FLEXIBLE POWER CONTROL (SO-14)
● ±6V TO ±16V SUPPLY RANGE
±10.5V (VS = ±12V)
●
POWER PACKAGING
APPLICATIONS
● xDSL LINE DRIVER
● LOW-NOISE ADSL RECEIVER
● LOW-COST VIDEO DA
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. An additional IADJ pin allows the maxi-
mum supply current to be adjusted ±25% from the nominal value.
Connecting this pin to +VCC will increase the full power quiescent
to 20mA, increasing the peak output current available, while
connecting this pin to –VCC will decrease the full power quiescent
to 12mA where a lower peak output current is required. The
digital control lines continue to scale the total quiescent current
from these new maximum levels in the same proportional steps as
before.
● LOW-COST UPGRADE TO LT1207/AD812
+12V
1/2
OPA2607
78.7Ω
1.21kΩ
1:0.8
100nF
100Ω
4.8Vp-p
38Vp-p
78.7Ω
15Vp-p
348Ω
1.21kΩ
The OPA2607 is available in three package styles. For power
driver applications, a thermally enhanced
package
1/2
with a heat slug is available in both SO-8 and SO-14 pinouts. For
lower power receiver applications, a standard SO-8 package is
available.
OPA2607
–12V
OPA2607 RELATED PRODUCTS
Low Turns Ratio ADSL Upstream Driver
SINGLES
DUALS
TRIPLES
NOTES
OPA681
—
OPA2681
OPA2677
OPA3681
—
Single +12V Capable
Single +12V Capable
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
©2000 Burr-Brown Corporation
PDS-11615A
OPPArin2te6d i0n 7U.S.A. August, 2000