TLV2442-Q1 Datasheet, PDF (1/35 Pages) Texas Instruments – Advanced LinCMOS™ RAIL-TO-RAIL OUTPUT WIDE-INPUT-VOLTAGE OPERATIONAL AMPLIFIERS

TLV2442-Q1, TLV2442A-Q1
TLV2444A-Q1
www.ti.com........................................................................................................................................... SGLS181C – SEPTEMBER 2003 – REVISED AUGUST 2009
Advanced LinCMOS™ RAIL-TO-RAIL OUTPUT WIDE-INPUT-VOLTAGE
OPERATIONAL AMPLIFIERS
FEATURES
1
•23 Qualified for Automotive Applications
• ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
• Output Swing Includes Both Supply Rails
• Extended Common-Mode Input Voltage Range:
0 V to 4.25 V (Min) at 5-V Single Supply
• No Phase Inversion
• Low Noise: 16 nV/√Hz Typ at f = 1 kHz
• Low Input Offset Voltage:
950 µV Max at T_A = 25°C (TLV244xA)
• Low Input Bias Current: 1 pA (Typ)
• 600-Ω Output Drive
• High-Gain Bandwidth: 1.8 MHz (Typ)
• Low Supply Current: 750 µA Per Channel (Typ)
• Macromodel Included
DESCRIPTION
The TLV244x and TLV244xA are low-voltage
operational amplifiers from Texas Instruments. The
common-mode input voltage range of these devices
has been extended over typical standard CMOS
amplifiers, making them suitable for a wide range of
applications. In addition, these devices do not phase
invert when the common-mode input is driven to the
supply rails. This satisfies most design requirements
without paying a premium for rail-to-rail input
performance. They also exhibit rail-to-rail output
performance for increased dynamic range in single-
or split-supply applications. This family is fully
characterized at 3-V and 5-V supplies and is
optimized for low-voltage operation. Both devices
offer comparable ac performance while having lower
noise, input offset voltage, and power dissipation than
existing CMOS operational amplifiers. The TLV244x
has increased output drive over previous rail-to-rail
operational amplifiers and can drive 600-Ω loads for
telecommunications applications.
The other members in the TLV244x family are the
low-power, TLV243x, and micro-power, TLV2422,
versions.
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
3
V_DD = 3 V
2.5
2
T_A = − 40°C
1.5
1
T_A = 125°C
0.5
T_A = 85°C T_A = 25°C
0
0
2
4
6
8
10
12
I_OH − High-Level Output Current − mA
Figure 1.
The TLV244x, exhibiting high input impedance and low noise, is excellent for small-signal conditioning for
high-impedance sources, such as piezoelectric transducers. Because of the micropower dissipation levels and
low-voltage operation, these devices work well in hand-held monitoring and remote-sensing applications. In
addition, the rail-to-rail output feature with single- or split-supplies makes this family a great choice when
interfacing with analog-to-digital converters (ADCs). For precision applications, the TLV244xA is available with a
maximum input offset voltage of 950 µV.
If the design requires single operational amplifiers, see the TI TLV2211/21/31. This is a family of rail-to-rail output
operational amplifiers in the SOT-23 package. Their small size and low power consumption make them ideal for
high-density battery-powered equipment.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Advanced LinCMOS is a trademark of Texas Instruments.
2
PSpice, Parts are trademarks of MicroSim.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2009, Texas Instruments Incorporated