ISL55191 Datasheet, PDF (1/18 Pages) Intersil Corporation – Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp

®
Data Sheet
ISL55191, ISL55291
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
(±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 21µA 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 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.
Ordering Information
PART
NUMBER
(Note)
ISL55191IBZ
PART
MARKING
55191 IBZ
TAPE
AND
REEL
-
PACKAGE
(Pb-Free)
PKG.
DWG.
#
8 Ld SOIC MDP0027
ISL55191IBZ-T13 55191 IBZ 13” 8 Ld SOIC MDP0027
(2,500 pcs) Tape and Reel
ISL55191IRZ
191Z
-
8 Ld DFN
L8.3x3D
ISL55191IRZ-T13 191Z
13” 8 Ld DFN
L8.3x3D
(2,500 pcs) Tape and Reel
ISL55291IUZ
5291Z
-
10 Ld MSOP MDP0043
ISL55291IUZ-T13 5291Z
13” 10 Ld MSOP MDP0043
(2,500 pcs) Tape and Reel
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.
Features
• 1.3nV/√Hz input voltage noise, f_O = 1kHz
• Harmonic Distortion -94dBc, -104dBc, f_O = 1MHz
• Stable at gains as low as 10
• 800MHz gain bandwidth product (A_V = 10)
• 260V/µs slew rate
• 6.1mA supply current (21µA in disable mode)
• 800µV maximum offset voltage
• 12µA 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
TABLE 1. ENABLE LOGIC
ENABLE
DISABLE
ISL55191
EN = 1
EN = 0
ISL55291
EN = 0
EN = 1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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