OPA726 - OPA725 and OPA726 Series: Very Low-Noise, High-Speed, 12V CMOS Op Amp

Updated : 2020-01-09 14:21:21
Description

The OPA725 and OPA726 series op amps use a state-of-the-art 12V analog CMOS process, and combine outstanding ac performance with low bias current and excellent CMRR, PSRR, and AOL. The 20MHz Gain-Bandwidth (GBW) Product is achieved by using a proprietary and patent-pending output stage design. These characteristics allow excellent 16-bit settling times for driving 16-bit Analog-to-Digital Converters (ADCs).

Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA725 and OPA726 well-suited for communication, high-end audio, and active filter applications. With bias current of less than 200pA, they are well-suited for use as transimpedance (I/V-conversion) amplifiers for monitoring optical power in ONET applications.

The OPA725 and OPA726 op amps can be used in single-supply applications from 4V up to 12V, or dual-supply from ±2V to ±6V. The output swings to within 150mV of the rails, maximizing dynamic range. The shutdown versions (OPAx726) reduce the quiescent current to less than 6µA and feature a reference pin for easy shutdown operation with standard CMOS logic in dual supply applications.

The OPA725 (single) is available in SOT23-5 and SO-8 [ackages, and the OPA2725 (dual) is available in MSOP-8 (Q1 ’04) and SO-8 packages. The OPA726 (single with shutdown) is available in MSOP-8 and SO-8. The OPA2726 (dual with shutdown) is available in MSOP-10. All versions are specified for operation from –40°C to +125°C.

Products containing the "OPA726" keyword are: OPA726AID , OPA726AID , OPA726AIDG , OPA726AIDG4 , OPA726AIDGK , OPA726AIDGKR , OPA726AIDGKR(BHC) , OPA726AIDGKRG4 , OPA726AIDGKRG4 , OPA726AIDGKT , OPA726AIDGKT , OPA726AIDGKTG4 , OPA726AIDGKTG4 , OPA726AIDR , OPA726AIDR , OPA726AIDRG4
Features

  • BANDWIDTH: 20MHz
  • SLEW RATE: 30V/µs
  • FAST 16-Bit SETTLING TIME
  • LOW NOISE: 6nV/Hz (typ) at 100kHz
  • EXCELLENT CMRR, PSRR, and AOL
  • RAIL-TO-RAIL OUTPUT
  • CM RANGE INCLUDES GND
  • THD+N: 0.0003% (typ) at 1kHz
  • QUIESCENT CURRENT: 5.5mA/ch (max)
  • SUPPLY VOLTAGE: 4V to 12V
  • SHUTDOWN MODE (OPAx726): 6µA/ch
  • APPLICATIONS
    • OPTICAL NETWORKING
    • TRANSIMPEDANCE AMPLIFIERS
    • INTEGRATORS
    • ACTIVE FILTERS
    • A/D CONVERTER BUFFERS
    • I/V CONVERTER FOR DACs
    • PORTABLE AUDIO
    • PROCESS CONTROL
    • TEST EQUIPMENT

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Parametrics
StatusACTIVE
Approx. price1.48 | 1ku
Number of channels1
Total Supply Voltage4
Rail-to-railIn to V-^Out
GBW20
Slew Rate30
Package GroupSOIC|8
Vos (offset voltage @ 25 C)3
Iq per channel4.3
Vn at 1 kHz10
RatingCatalog
Operating temperature range-40 to 125
Package size: mm2:W x L (PKG)[pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8)
Offset drift4
FeaturesShutdown
Input bias current200
CMRR94
Output current40
ArchitectureCMOS
Radiation, TID
Radiation, SEL
Input common mode headroom (to negative supply)0.0
Input common mode headroom (to positive supply)-2.0
Output swing headroom (to negative supply)0.1
Output swing headroom (to positive supply)-0.1