LMH6672 Dual, High Output Current, High Speed Op Amp
January 2002
LMH6672
Dual, High Output Current, High Speed Op Amp
General Description
The LMH6672 is a low cost, dual high speed op amp capable
of driving signals to within 1V of the power supply rails. It
features the high output drive with low distortion required for
the demanding application of a single supply xDSL line
driver.
When connected as a differential output driver, the LMH6672
can drive a 50鈩?load to 16.8V
PP
swing with only 鈭?3dBc
distortion, fully supporting the peak upstream power levels
for upstream full-rate ADSL. The LMH6672 is fully specified
for operation with 5V and 12V supplies. Ideal for PCI modem
cards and xDSL modems.
Features
n
High Output Drive
19.2V
PP
differential output voltage, R
L
= 50鈩?/div>
9.6V
PP
single-ended output voltage, R
L
= 25鈩?/div>
n
High Output Current
鹵
200mA
@
V
O
= 9
VPP
, V
S
= 12V
n
Low Distortion
93dB SFDR
@
100KHz, V
O
= 8.4V
PP
, R
L
= 25鈩?/div>
92dB SFDR
@
1MHz, V
O
= 2V
PP
, R
L
= 100鈩?/div>
n
High Speed
130MHz 3dB bandwidth (G = 2)
160V/碌s slew rate
n
Low Noise
4.5nV/
: input noise voltage
1.7pA/
: input noise current
n
Low supply current: 6.2mA/amp
n
Single-supply operation: 5V to 12V
n
Available in 8-pin SOIC, PSOP and LLP
Applications
n
ADSL PCI modem cards
n
xDSL external modems
n
Line drivers
Connection Diagram
8-Pin SOIC/PSOP/LLP
Typical Application
20016602
20016601
Top View
Figure 1
Ordering Information
Package
8-Pin SOIC
8-Pin PSOP
8-Pin LLP
Part Number
LMH6672MA
LMH6672MAX
LMH6672MR
LMH6672MRX
LMH6672LD
LMH6672LDX
Package Marking
LMH6672MA
LMH6672MA
LMH6672MR
LMH6672MR
L6672LD
L6672LD
Transport Media
Rails
2.5k Units Tape and Reel
Rails
2.5k Units Tape and Reel
1k Units Tape and Reel
4.5k Units Tape and Reel
LDC08A
MRA08A
NSC Drawing
M08A
漏 2002 National Semiconductor Corporation
DS200166
www.national.com
next