OPA1644AIDR vs OPA1679IDR

This in-depth comparison of the OPA1644AIDR and OPA1679IDR provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

OPA1644AIDR

Texas Instruments

Lifecycle: Active
Stock: 3710 PCS
Series: Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

+BOM RFQ

Part B

OPA1679IDR

Texas Instruments

Lifecycle: Active
Stock: 6320 PCS
Series: Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification	OPA1644AIDR	OPA1679IDR
Series	SoundPlus™	-
Part Status	Active	Active
Amplifier Type	Audio	Audio
Number of Circuits	4	4
Output Type	Rail-to-Rail	Rail-to-Rail
Slew Rate	20V/µs	9V/µs
Gain Bandwidth Product	11 MHz	16 MHz
Current - Input Bias	2 pA	10 pA
Voltage - Input Offset	1 mV	500 µV
Supply Current	1.8mA (x4 Channels)	2mA (x4 Channels)
Current - Output / Channel	36 mA	50 mA
Voltage - Supply Span(Min)	4.5 V	4.5 V
Voltage - Supply Span(Max)	36 V	36 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount

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