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ISL55191, ISL55291
Data Sheet
March 30, 2007
FN6263.1
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
(鹵2.5VDC) down to +3VDC (鹵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 21碌A(chǔ) 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/
鈭?/div>
Hz and
harmonic distortion products -94dBc (2nd) and -104dBc
(3rd) below a 1MHz 2V
P-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
鈥?1.3nV/鈭欻z input voltage noise, f
O
= 1kHz
鈥?Harmonic Distortion -94dBc, -104dBc, f
O
= 1MHz
鈥?Stable at gains as low as 10
鈥?800MHz gain bandwidth product (A
V
= 10)
鈥?260V/碌s slew rate
鈥?6.1mA supply current (21碌A(chǔ) in disable mode)
鈥?800碌V maximum offset voltage
鈥?12碌A(chǔ) input bias current
鈥?3V to 5.5V single supply voltage range
鈥?Rail-to-rail output
鈥?Pb-free plus anneal available (RoHS compliant)
Applications
鈥?High speed pulse applications
鈥?Low noise signal processing
鈥?ADC buffers
鈥?DAC output amplifiers
鈥?Radio systems
鈥?Portable equipment
Ordering Information
PART
NUMBER
(Note)
ISL55191IBZ
PART
MARKING
55191 IBZ
TAPE
AND
REEL
-
PACKAGE
(Pb-Free)
8 Ld SOIC
PKG.
DWG.
#
TABLE 1. ENABLE LOGIC
ENABLE
ISL55191
EN = 1
EN = 0
DISABLE
EN = 0
EN = 1
MDP0027
ISL55291
ISL55191IBZ-T13 55191 IBZ
ISL55191IRZ
191Z
13鈥?/div>
8 Ld SOIC
MDP0027
(2,500 pcs) Tape and Reel
-
8 Ld DFN
L8.3x3D
ISL55191IRZ-T13 191Z
ISL55291IUZ
5291Z
13鈥?/div>
8 Ld DFN
L8.3x3D
(2,500 pcs) Tape and Reel
-
10 Ld MSOP
MDP0043
ISL55291IUZ-T13 5291Z
13鈥?/div>
10 Ld MSOP MDP0043
(2,500 pcs) Tape and Reel
Coming Soon
Evaluation Board
ISL55191EVAL1Z
Coming Soon
Evaluation Board
ISL55291EVAL1Z
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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2006, 2007. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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