12MHz Rail-to-Rail Input-Output Operational Amplifier
EL5220T
The EL5220T is a high voltage rail-to-rail input-output
amplifier with low power consumption. The EL5220T
contains two amplifiers. Each amplifier exhibits beyond
the rail input capability, rail-to-rail output capability and
is unity gain stable.
The maximum operating voltage range is from 4.5V to
19V. It can be configured for single or dual supply
operation, and typically consumes only 550μA per
amplifier. The EL5220T has an output short circuit
capability of ±200mA and a continuous output current
capability of ±65mA.
The EL5220T features a slew rate of 12V/μs. Also, the
device provides common mode input capability beyond
the supply rails, rail-to-rail output capability, and a
bandwidth of 12MHz (-3dB). This enables the amplifiers
to offer maximum dynamic range at any supply voltage.
These features make the EL5220T an ideal amplifier
solution for use in TFT-LCD panels as a V
COM
or static
gamma buffer, and in high speed filtering and signal
conditioning applications. Other applications include
battery power and portable devices, especially where low
power consumption is important.
The EL5220T is available in an 8 Ld MSOP package, and a
thermally enhanced 8 Ld DFN package. Both feature a
standard operational amplifier pinout. The devices
operate over an ambient temperature range of -40°C to
+85°C.
EL5220T
Features
• 12MHz (-3dB) Bandwidth
• 4.5V to 19V Maximum Supply Voltage Range
• 12V/μs Slew Rate
• 550μA Supply Current (per Amplifier)
• ±65mA Continuous Output Current
• ±200mA Output Short Circuit Current
• Unity-gain Stable
• Beyond the Rails Input Capability
• Rail-to-rail Output Swing
• Built-in Thermal Protection
• -40°C to +85°C Ambient Temperature Range
• Pb-free (RoHS Compliant)
Applications*
(see page 13)
• TFT-LCD Panels
• V
COM
Amplifiers
• Static Gamma Buffers
• Electronics Notebooks
• Electronics Games
• Touch-screen Displays
• Personal Communication Devices
• Personal Digital Assistants (PDA)
• Portable Instrumentation
• Sampling ADC Amplifiers
• Wireless LANs
• Office Automation
• Active Filters
• ADC/DAC Buffer
5
NORMALIZED GAIN (dB)
+15V
+15V
VOUTA
VINA-
0
VINA+
VS-
EL5220T
VS+
0.1μF
VOUTB
VINB-
VINB+
0
+
4.7μF
PANEL
CAPACITANCE
10kΩ
0
1kΩ
-5
150Ω
-10 V
S
= ±5V
A
V
= 1
C
L
= 8pF
-15
100k
560Ω
PANEL
CAPACITANCE
TFT-LCD
PANEL
1M
10M
100M
FREQUENCY (Hz)
FIGURE 1. TYPICAL TFT-LCD V
COM
APPLICATION
FIGURE 2. FREQUENCY RESPONSE FOR VARIOUS R
L
May 4, 2010
FN6892.0
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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Copyright Intersil Americas Inc. 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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