LM8272 采用微型封装的高输出电流和无限负载电容运算放大器 | 德州仪器 TI.com.cn

LM8272 (正在供货)

采用微型封装的高输出电流和无限负载电容运算放大器

采用微型封装的高输出电流和无限负载电容运算放大器 - LM8272
 

描述

The LM8272 is a Rail-to-Rail input and output Op Amp which can operate with a wide supply voltage range. This device has high output current drive, greater than Rail-to-Rail input common mode voltage range, and unlimited capacitive load drive capability, while requiring only 0.95mA/channel supply current. It is specifically designed to handle the requirements of flat panel TFT panel VCOM driver applications as well as being suitable for other low power and medium speed applications which require ease of use and enhanced performance over existing devices.

Greater than Rail-to-Rail input common mode voltage range with 50 dB of Common Mode Rejection allows high side and low side sensing among many applications without concerns for exceeding the range and with no compromise in accuracy. An exceptionally wide operating supply voltage range of 2.5 V to 24 V removes any concerns over functionality under extreme conditions and offers flexibility of use in multitude of applications. In addition, most device parameters are insensitive to power supply variations. This design enhancement is yet another step in simplifying its usage.

The LM8272 is offered in the 8-pin VSSOP package.

特性

    (VS = 12V, TA = 25°C, Typical values unless
    specified).

  • GBWP 15MHz
  • Wide supply voltage range 2.5 V to 24 V
  • Slew rate 15 V/µs
  • Supply current/channel 0.95 mA
  • Cap load tolerance Unlimited
  • Output short circuit current ±13 0mA
  • Output current (1 V from rails) ±65 mA
  • Input common mode voltage 0.3 V beyond rails
  • Input voltage noise 15 nV/√Hz
  • Input current noise 1.4 pA/√Hz

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参数 与其它产品相比 通用 运算放大器

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-Rail
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Offset Drift (Typ) (uV/C)
Features
Input Bias Current (Max) (pA)
CMRR (Typ) (dB)
Output Current (Typ) (mA)
Architecture
LM8272 LM6142 LM6144 LM7301 LM8261
2     2     4     1     1    
2.5     1.8     1.8     2.2     2.5    
24     24     24     30     30    
13     17     17     4     21    
12     25     25     1.25     12    
In
Out    
In
Out    
In
Out    
In
Out    
In
Out    
5     1     1     6     5    
0.9     0.65     0.65     0.6     0.97    
15     16     16     36     15    
Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
VSSOP | 8     PDIP | 8
SOIC | 8    
PDIP | 14
SOIC | 14    
SOIC | 8
SOT-23 | 5    
SOT-23 | 5    
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     See datasheet (PDIP)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    
See datasheet (PDIP)
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    
2     3     3     2     2    
High Cload Drive     N/A     N/A     N/A     High Cload Drive    
2000000     280000     280000     200000     2000000    
80     107     107     93     110    
100     8     8     9.5     53    
Bipolar     Bipolar     Bipolar     Bipolar     Bipolar    

WEBENCH® Designer LM8272

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 2.5 to 24.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C