低消費電力、単一電源、レール・ツー・レール オペアンプ MicroAmplifier(TM) シリーズ - OPA344

OPA344 (供給中)

低消費電力、単一電源、レール・ツー・レール オペアンプ MicroAmplifier(TM) シリーズ

 

概要

The OPA344 and OPA345 series rail-to-rail CMOS operational amplifiers are designed for precision, low-power, miniature applications. The OPA344 is unity gain stable, while the OPA345 is optimized for gains greater than or equal to five, and has a gain-bandwidth product of 3MHz.

The OPA344 and OPA345 are optimized to operate on a single supply from 2.5V and up to 5.5V with an input common-mode voltage range that extends 300mV beyond the supplies. Quiescent current is only 250µA (max).

Rail-to-rail input and output make them ideal for driving sampling analog-to-digital converters. They are also well suited for general purpose and audio applications and providing I/V conversion at the output of D/A converters. Single, dual and quad versions have identical specs for design flexibility.

A variety of packages are available. All are specified for operation from –40°C to 85°C. A SPICE macromodel for design analysis is available for download from www.ti.com.

特長

  • RAIL-TO-RAIL INPUT
  • RAIL-TO-RAIL OUTPUT (within 1mV)
  • LOW QUIESCENT CURRENT: 150µA typ
  • MicroSIZE PACKAGES
    • SOT23-5
    • MSOP-8
    • TSSOP-14
  • GAIN-BANDWIDTH
    • OPA344: 1MHz, G ≥ 1
    • OPA345: 3MHz, G ≥ 5
  • SLEW RATE
    • OPA344: 0.8V/µs
    • OPA345: 2V/µs
  • THD + NOISE: 0.006%
  • APPLICATIONS
    • PCMCIA CARDS
    • DATA ACQUISITION
    • PROCESS CONTROL
    • AUDIO PROCESSING
    • COMMUNICATIONS
    • ACTIVE FILTERS
    • TEST EQUIPMENT

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詳細を表示

機能一覧 他の製品と比較 高精度オペアンプ

 
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)
Offset Drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
CMRR (Typ) (dB)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Input Bias Current (Max) (pA)
Output Current (Typ) (mA)
Additional Features
Architecture
OPA344 OPA2344 OPA4344
1    2    4   
2.5    2.5    2.5   
5.5    5.5    5.5   
1    1    1   
0.8    0.8    0.8   
In
Out   
In
Out   
In
Out   
1    1    1   
3    3    3   
0.15    0.15    0.15   
30    30    30   
92    92    92   
Catalog    Catalog    Catalog   
-40 to 85    -40 to 85    -40 to 85   
PDIP
SOIC
SOT-23   
SOIC
VSSOP   
SOIC
TSSOP   
See datasheet (PDIP)    8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
See datasheet (PDIP)   
1    1    1   
15    15    15   
N/A    N/A    N/A   
CMOS    CMOS    CMOS   

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WEBENCH® Designer OPA344

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 2.7 to 5.5 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C