OPA2345 - Low Power, Single-Supply, Rail-To-Rail Operational Amplifiers MicroAmplifier™ Series

Updated : 2020-01-09 14:20:56
Description

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.

Products containing the "OPA2345" keyword are: OPA2345EA , OPA2345EA/250 , OPA2345EA/250 , OPA2345EA/250G4 , OPA2345EA/2K5 , OPA2345EA/2K5 , OPA2345EA/2K5G4 , OPA2345EA/2K5G4 , OPA2345EA250 , OPA2345EA2K5 , OPA2345UA , OPA2345UA , OPA2345UA/2K5 , OPA2345UA/2K5 , OPA2345UA/2K5E4 , OPA2345UA/2K5G4 , OPA2345UAG4 , OPA2345UAG4 , OPA2345UAIDR
Features

  • 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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Parametrics
StatusACTIVE
Approx. price0.84 | 1ku
Number of channels2
Total Supply Voltage2.5
Rail-to-railIn^Out
GBW3
Slew Rate2
Package GroupSOIC|8
Vos (offset voltage @ 25 C)1
Iq per channel0.15
Vn at 1 kHz30
RatingCatalog
Operating temperature range-40 to 85
Package size: mm2:W x L (PKG)[pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8)
Offset drift3
FeaturesDecompensated
Input bias current1
CMRR92
Output current15
ArchitectureCMOS
Radiation, TID
Radiation, SEL
Input common mode headroom (to negative supply)-0.3
Input common mode headroom (to positive supply)0.3
Output swing headroom (to negative supply)0.001
Output swing headroom (to positive supply)-0.001
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