www.3peakic.com.cn
Rev.A.0
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TPA2641/2642/2644
36V, 1.5MHz, Low Noise Op Amps
Features
Supply Voltage: 3V to 36V
Offset Voltage: ±2mV Maximum
Differential Input Voltage Range to Supply Rail, can Work
as Comparator
Bandwidth: 1.5MHz, Slew Rate: 0.5V/μs
Input Rail to –V
S
, No Internal ESD Diode to +V
S
Low 1/f Noise: 50 nV/√Hz at 10Hz
High PSRR+: 60dB at 100KHz
No significant output glitch when power on and off
–40°C to 125°C Operation Temperature Range
Applications
Instrumentation
Sensor Interface
Motor Control
Industrial Control
Description
The TPA264X series amplifiers are newest high supply voltage
amplifiers with 2mV offset, low noise and immunity to high
frequency noise from power supply. They incorporate 3PEAK’s
proprietary and patented design techniques to achieve very
good AC performance with 1.5MHz bandwidth, 0.5V/μs slew
rate and low distortion while drawing only 550μA of quiescent
current per amplifier.
The input common-mode voltage range extends to –V
S
, and no
internal ESD diode between input and +V
S
, This feature can
block the current path from input to +V
S
when power down but
the signal still in input pin, it’s usual in battery related application.
Pin Configuration
TPA2641
5-Pin SOT23
TPA2642
8-Pin SOIC/TSSOP/MSOP
8
6
5
7
3
2
1
4
Out A
﹢In A
﹣In A
﹢In B
﹣In B
Out B
A
B
﹣Vs
﹢Vs
TPA2644
14-Pin SOIC/TSSOP
14
13
12
11
10
9
8
6
5
7
3
2
1
4
Out A
﹢In A
﹣In A
DA
CB
Out D
﹢In D
﹣In D
Out B
﹢In B
﹣In B
Out C
﹢In C
﹣In C
﹣Vs
﹢Vs
4
5
3
2
1
Out
+ In - In
﹣Vs
﹢Vs
8
7
6
54
3
2
1
Out A
﹢In A
﹣In A
﹣Vs
﹢In B
﹣In B
Out B
﹢Vs
TPA2642
8-Pin DFN
The thermal pad of DFN package is recommended
to be left float or connected to -Vs
TPA2641U
5-Pin SOT23
4
5
3
2
1
+In
-VS
-In
Out
+VS
0
20
40
60
80
100
120
140
100 1K 10K 100K
PSRR(dB)
Frequency(Hz)
PSRR+
www.3peakic.com.cn
Rev.A.0
2 / 15
TPA2641/2642/2644
36V, 1.5MHz, Low Noise Op Amps
Table of Contents
Features ........................................................................................................................................................................... 1
Applications ..................................................................................................................................................................... 1
Description ....................................................................................................................................................................... 1
Pin Configuration ............................................................................................................................................................ 1
Table of Contents ............................................................................................................................................................ 2
Revision History .............................................................................................................................................................. 3
Order Information ............................................................................................................................................................ 3
Absolute Maximum Ratings
Note 1
................................................................................................................................... 4
ESD and Latch Up Rating ............................................................................................................................................... 4
Thermal Information ....................................................................................................................................................... 4
Electrical Characteristics ............................................................................................................................................... 5
Typical Performance Characteristics ............................................................................................................................ 7
Tape and Reel Information ........................................................................................................................................... 12
Package Outline Dimensions ....................................................................................................................................... 13
SOT23-5 ................................................................................................................................................................ ..................... 13
SOIC-8 ................................................................ ....................................................................................................................... 13
MSOP-8 ..................................................................................................................................................................................... 14
SOIC-14 ................................................................................................................................ ................................ ..................... 14