1
FN6263.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2006, 2007. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
ISL55191, ISL55291
Single and Dual Ultra-Low Noise, Ultra-Low
Distortion, Rail-to-Rail, Low Power Op Amp
The ISL55191 and ISL55291 are single and dual high speed
operational amplifiers featuring low noise, low distortion, and
rail-to-rail output drive capability. They are designed to
operate with single and dual supplies from +5VDC
(±2.5VDC) down to +3VDC (±1.5VDC). These amplifiers
draw 6.1mA of quiescent supply current per amplifier. For
power conservation, this family offers a low-power shutdown
mode that reduces supply current to 21A and places the
amplifiers' output into a high impedance state. The ISL55191
ENABLE logic places the device in the shutdown mode with
EN = 0 and the ISL55291 is placed in the shutdown mode
with EN = 1.
These amplifiers have excellent input and output overload
recovery times and outputs that swing rail-to-rail. Their input
common mode voltage range includes ground. The
ISL55191 and ISL55291 are stable at gains as low as 10
with an input referred noise voltage of 1.3nV/√Hz and
harmonic distortion products -94dBc (2nd) and -104dBc
(3rd) below a 1MHz 2VP-P signal.
The ISL55191 is available in space-saving 8 Ld DFN and 8 Ld
SOIC packages. The ISL55291 is available in a 10 Ld MSOP
package.
Features
1.3nV/
√Hz input voltage noise, fO = 1kHz
Harmonic Distortion -94dBc, -104dBc, fO = 1MHz
Stable at gains as low as 10
800MHz gain bandwidth product (AV = 10)
260V/s slew rate
6.1mA supply current (21A in disable mode)
800V maximum offset voltage
12A input bias current
3V to 5.5V single supply voltage range
Rail-to-rail output
Pb-free plus anneal available (RoHS compliant)
Applications
High speed pulse applications
Low noise signal processing
ADC buffers
DAC output amplifiers
Radio systems
Portable equipment
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TAPE
AND
REEL
PACKAGE
(Pb-Free)
PKG.
DWG.
#
ISL55191IBZ
55191 IBZ
-
8 Ld SOIC
MDP0027
ISL55191IBZ-T13 55191 IBZ
13”
(2,500 pcs)
8 Ld SOIC
Tape and Reel
MDP0027
ISL55191IRZ
191Z
-
8 Ld DFN
L8.3x3D
ISL55191IRZ-T13 191Z
13”
(2,500 pcs)
8 Ld DFN
Tape and Reel
L8.3x3D
ISL55291IUZ
5291Z
-
10 Ld MSOP
MDP0043
ISL55291IUZ-T13 5291Z
13”
(2,500 pcs)
10 Ld MSOP
Tape and Reel
MDP0043
Coming Soon
ISL55191EVAL1Z
Evaluation Board
Coming Soon
ISL55291EVAL1Z
Evaluation Board
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100% matte
tin plate termination finish, which are RoHS compliant and compatible
with both SnPb and Pb-free soldering operations. Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
TABLE 1. ENABLE LOGIC
ENABLE
DISABLE
ISL55191
EN = 1
EN = 0
ISL55291
EN = 0
EN = 1
Data Sheet
March 30, 2007
OBS
OLE
TE P
ROD
UCT
POS
SIBL
E SU
BST
ITUT
E PR
ODU
CT
ISL5
5190
, ISL
5529
0