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PDF EL5220T Data sheet ( Hoja de datos )
| Número de pieza | EL5220T | |
| Descripción | 12MHz Rail-to-Rail Input-Output Operational Amplifier | |
| Fabricantes | Intersil | |
| Logotipo |  |
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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 VCOM 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.
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
• VCOM 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
+15V
VOUTA
VINA-
0
VINA+
VS-
EL5220T
VS+
0.1μF
VOUTB
+15V
+
4.7μF
VINB-
0
VINB+
PANEL
CAPACITANCE
PANEL
CAPACITANCE
TFT-LCD
PANEL
FIGURE 1. TYPICAL TFT-LCD VCOM APPLICATION
5
0
-5
150Ω
10kΩ
1kΩ
560Ω
-10 VS = ±5V
AV = 1
CL = 8pF
-15
100k
1M 10M
FREQUENCY (Hz)
100M
FIGURE 2. FREQUENCY RESPONSE FOR VARIOUS RL
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 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
EL5220T
Electrical Specifications VS+ = +18V, VS- = 0V, RL = 10kΩ to 9V, TA = +25°C, unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
INPUT CHARACTERISTICS
VOS
TCVOS
Input Offset Voltage
VCM = 9V
Average Offset Voltage Drift (Note 8) 8 Ld MSOP package
8 Ld DFN package
5 18 mV
6 μV/°C
4 μV/°C
IB
RIN
CIN
CMIR
Input Bias Current
Input Impedance
Input Capacitance
Common-Mode Input Range
VCM = 9V
-0.5
2 50 nA
1 GΩ
2 pF
+18.5 V
CMRR
Common-Mode Rejection Ratio
AVOL
Open Loop Gain
OUTPUT CHARACTERISTICS
For VINx from -0.5V to +18.5V
0.5V ≤ VOUTx ≤ 17.5V
53 78
75 90
dB
dB
VOL
VOH
ISC
Output Swing Low
Output Swing High
Short Circuit Current
IOUT
Output Current
POWER SUPPLY PERFORMANCE
IL = -9mA
IL = +9mA
VCM = 9V, Source: VOUTx short to VS-,
Sink: VOUTx short to VS+
120 150
17.85 17.88
±200
±65
mV
V
mA
mA
(VS+) - (VS-) Supply Voltage Range
IS Supply Current (Per Amplifier)
PSRR
Power Supply Rejection Ratio
VCM = 9V, No load
Supply is moved from 4.5V to 19V
4.5 19
650 850
60 75
V
μA
dB
DYNAMIC PERFORMANCE
SR
tS
BW
GBWP
PM
CS
Slew Rate (Note 9)
Settling to +0.1% (Note 10)
-3dB Bandwidth
Gain-Bandwidth Product
Phase Margin
Channel Separation
1V ≤ VOUTx ≤ 17V, 20% to 80%
AV = +1, VOUTx = 2V step,
RL = 10kΩ, CL = 8pF
RL = 10kΩ, CL = 8pF
AV = -50, RF = 5kΩ, RG = 100Ω
RL = 10kΩ, CL = 8pF
AV = -50, RF = 5kΩ, RG = 100Ω
RL = 10kΩ, CL = 8pF
f = 5MHz
12 V/μs
500 ns
12 MHz
8 MHz
50 °
85 dB
NOTES:
8. Measured over -40°C to +85°C ambient operating temperature range. See the typical TCVOS production distribution shown in
the “Typical Performance Curves” on page 6.
9. Typical slew rate is an average of the slew rates measured on the rising (20% to 80%) and the falling (80% to 20%) edges of
the output signal.
10. Settling time measured as the time from when the output level crosses the final value on rising/falling edge to when the output
level settles within a ±0.1% error band. The range of the error band is determined by: Final Value(V)±[Full Scale(V)*0.1%]
5 FN6892.0
May 4, 2010
5 Page 
EL5220T
Applications Information
Product Description
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 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.
Operating Voltage, Input and Output
Capability
The EL5220T can operate on a single supply or dual
supply configuration. The EL5220T operating voltage
ranges from a minimum of 4.5V to a maximum of 19V.
This range allows for a standard 5V (or ±2.5V) supply
voltage to dip to -10%, or a standard 18V (or ±9V) to
rise by +5.5% without affecting performance or
reliability.
The input common-mode voltage range of the EL5220T
extends 500mV beyond the supply rails. Also, the
EL5220T is immune to phase reversal. However, if the
common mode input voltage exceeds the supply voltage
by more than 0.5V, electrostatic protection diodes in the
input stage of the device begin to conduct. Even though
phase reversal will not occur, to maintain optimal
reliability it is suggested to avoid input overvoltage
conditions. Figure 30 shows the input voltage driven
500mV beyond the supply rails and the device output
swinging between the supply rails.
The EL5220T output typically swings to within 50mV of
positive and negative supply rails with load currents of
±5mA. Decreasing load currents will extend the output
voltage range even closer to the supply rails. Figure 31
shows the input and output waveforms for the device in
a unity-gain configuration. Operation is from ±5V
supply with a 10kΩ load connected to GND. The input is
a 10VP-P sinusoid and the output voltage is
approximately 9.9VP-P.
Refer to the “Electrical Specifications” Table beginning
on page 3 for specific device parameters. Parameter
variations with operating voltage, loading and/or
temperature are shown in the “Typical Performance
Curves” on page 6.
VS = ±2.5V, TA = +25°C, AV = 1, VINx = 6VP-P, RL = 10kΩ TO GND
OUTPUT
INPUT
100μs/DIV
FIGURE 30. OPERATION WITH BEYOND-THE-RAILS
INPUT
VS = ±5V, TA = +25°C, AV = 1, VINx = 10VP-P, RL = 10kΩ TO GND
100μs/DIV
FIGURE 31. OPERATION WITH RAIL-TO-RAIL INPUT
AND OUTPUT
Output Current
The EL5220T is capable of output short circuit currents
of 200mA (source and sink), and the device has
built-in protection circuitry which limits the output
current to ±200mA (typical).
To maintain maximum reliability the continuous output
current should never exceed ±65mA. This ±65mA limit
is determined by the characteristics of the internal
metal interconnects. Also, see “Power Dissipation” on
page 12 for detailed information on ensuring proper
device operation and reliability for temperature and
load conditions.
Unused Amplifiers
It is recommended that any unused amplifiers be
configured as a unity gain follower. The inverting input
should be directly connected to the output and the
non-inverting input tied to the ground.
Thermal Shutdown
The EL5220T has a built-in thermal protection which
ensures safe operation and prevents internal damage
to the device due to overheating. When the die
temperature reaches +165°C (typical) the device
automatically shuts OFF the outputs by putting them in
a high impedance state. When the die cools by +15°C
11 FN6892.0
May 4, 2010
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet EL5220T.PDF ] | |
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