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PDF EC5534 Data sheet ( Hoja de datos )
| Número de pieza | EC5534 | |
| Descripción | 18V 100mA Output Current Rail-to-Rail Quad Operational Amplifiers | |
| Fabricantes | E-CMOS | |
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18V 100mA Output Current Rail-to-Rail
Quad Operational Amplifiers
EC5534
FEATURES
• Wide supply voltage range 4.5V ~
18V
• Input range 500mV beyond the rails
• Unity-gain stable
• Rail-to-rail output swing
• High slew rate 3.2V/μs
• GBWP 3.5 MHz
• 6 MHz -3dB Bandwidth
• Ultra-small Package TSSOP-14
APPLICATIONS
• TFT-LCD Reference Driver
• Touch-Screen Display
• Wireless LANs
• Personal Communication Devices
• Direct Access Arrangement
• Personal Digital Assistant (PDA)
• Active Filter
• Sampling ADC Amplifier
• ADC/DAC Buffer
• Electronic Notebook
• Office Automation
GENERAL DESCRIPTION
With features of 3.2V/μs high slew rate and
1.3μs of fast settling time, as well as 100mA
(sink and source) of high output driving
capability, the EC5534 is ideal for the
requirements of flat panel Thin Film Transistor
Liquid Crystal Displays (TFT-LCD) panel
reference buffers application. Due to
insensitive to power supply variation, EC5534
offers flexibility of use in multitude of
applications such as battery power, portable
devices and anywhere low power consumption
is concerned. With standard operational
amplifier pin assignment, the EC5534 is
offered in space saving 14-Pin TSSOP package
and specified over the -40°C to +85°C
temperature range.
PIN ASSIGNMENT
V OUTA
1
V INA-
2
V INA+
3
V s+ 4
V INB+
5
V INB-
6
V OUTB
7
--
++
++
--
TSSOP-14
14 VOUTD
13 V IND-
12 V IND+
11 VS-
10 V INC+
9 V INC-
8 V OUTC
The EC5534 is a 100mA output current
rail-to-rail quad channels operational amplifier
with wide supply range from 4.5V to 18V while
consumes only 1.1mA per channel. It provides
0.5V beyond the supply rails of common mode
input range and capability of rail-to-rail output
swing as well. This enables the amplifier to
offer maximum dynamic range at any supply
voltage among many applications. A 3.5MHz
gain bandwidth product allows EC5534 to
perform more stable than other devices in
Internet applications.
PAGE 1 of 9
Rev 0.1
7/8/2002
1 page  
18V 100mA Output Current Rail-to-Rail
Quad Operational Amplifiers
EC5534
APPLICATIONS INFORMATION
Product Description
that the device may be damaged. The internal metal
interconnections are well designed to prevent the output
The EC5534 rail-to-rail quad channels amplifier is built continuous current from exceeding +/-100 mA such that
on an advanced high voltage CMOS process. It’s beyond the maximum reliability can be well maintained.
rails input capability and full swing of output range made
itself an ideal amplifier for use in a wide range of
general-purpose applications. The features of 3.2V/µS
high slew rate, fast settling time, 3.5MHz of GBWP as
well as high output driving capability have proven the
EC5534 a good voltage reference buffer for TFT-LCD
Output Phase Reversal
The EC5534 is designed to prevent its output from being
phase reversal as long as the input voltage is limited
from VS-－0.5V to VS+ ＋0.5V. Figure 2 shows a photo
of the device output with its input voltage driven beyond
for applications. High phase margin make the EC5534
ideal for Connected in voltage follower mode for high
the supply rails. Although the phase of the device's
output will not be reversed, the input's over-voltage
drive applications
should be avoided. An improper input voltage exceeds
Supply Voltage, Input Range and Output Swing
The EC5534 can be operated with a single nominal wide
supply range by more than 0.6V may result in an over
stress damage.
supply voltage ranging from 4.5V to 18V with stable
performance over operating temperatures of -40 °C to
+85 °C.
With 500mV greater than rail-to-rail input common
mode voltage range and 70dB of Common Mode
Rejection Ratio, the EC5534 allows a wide range sensing
among many applications without having any concerns
over exceeding the range and no compromise in accuracy.
The output swings of the EC5534 typically extend to
within 80mV of positive and negative supply rails with
load currents of 5mA. The output voltage swing can be
even closer to the supply rails by merely decreasing the
load current. Figure 1 shows the input and output
waveforms for the device in the unity-gain configuration.
Figure 2. Operation with Beyond-the Rails Input
The amplifier is operated under ±5V supply with a
10kΩ load connected to GND. The input is a 10Vp-p
sinusoid. An approximately 9.985 Vp-p of output voltage
swing can be easily achieved.
Power Dissipation
The EC5534 is designed for maximum output current
capability. Even though momentary output shorted to
ground causes little damage to the device.
Figure 1. Operation with Rail-to-Rail Input and
Output
Output Short Circuit Current Limit
A +/-300mA short circuit current will be limited by the
EC5534 if the output is directly shorted to the positive or
the negative supply. For an indefinitely output short
circuit, the power dissipation could easily increase such
For the high drive amplifier EC5534, it is possible to
exceed the 'absolute-maximum junction temperature'
under certain load current conditions. Therefore, it is
important to calculate the maximum junction
temperature for the application to determine if load
conditions need to be modified for the amplifier to
remain in the safe operating area. The maximum power
dissipation allowed in a package is determined according
to:
PDmax
=
TJmax - TAmax
ΘJA
Where:
TJmax = Maximum Junction Temperature
TAmax= Maximum Ambient Temperature
ΘJA = Thermal Resistance of the Package
PDmax = Maximum Power Dissipation in the Package.
PAGE 5 of 9
Rev 0.1
7/8/2002
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet EC5534.PDF ] | |
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