Datasheet OP179, OP279 (Analog Devices)

a
Rail-to-Rail High Output Current Operational Amplifiers OP179/OP279 PIN CONFIGURATIONS FEATURES Rail-to-Rail Inputs and Outputs 5-Lead SOT-23-5 High Output Current:
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60 mA (RT-5) Single Supply: 5 V to 12 V Wide Bandwidth: 5 MHz High Slew Rate: 3 V/
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s OP179 OUT A 1 5 V– Low Distortion: 0.01% V+ 2 Unity-Gain Stable No Phase Reversal +IN A 3 4
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IN A Short-Circuit Protected Drives Capacitive Loads: 10 nF 8-Lead SOIC APPLICATIONS (S Suffix) Multimedia Telecom DAA Transformer Driver OP179 NC 1 8 NC LCD Driver
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IN A 2 7 V+ Low Voltage Servo Control +IN A 3 6 OUT A Modems V
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4 5 NC FET Drivers NC = NO CONNECT 8-Lead SOIC and TSSOP GENERAL DESCRIPTION SO-8 (S) and RU-8
The OP179 and OP279 are rail-to-rail, high output current, single-supply amplifiers. They are designed for low voltage applications that require either current or capacitive load drive
OUT A 1 8 V+
capability. The OP179/OP279 can sink and source currents of ⴚ
IN A 2 7 OUT B OP279
±60 mA (typical) and are stable with capacitive loads to 10 nF.
+IN A 3 6
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IN B V
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4 5 +IN B
Applications that benefit from the high output current of the OP179/OP279 include driving headphones, displays, transform- ers and power transistors. The powerful output is combined with a unique input stage that maintains very low distortion with wide common-mode range, even in single supply designs. Very good audio performance can be attained when using the The OP179/OP279 can be used as a buffer to provide much OP179/OP279 in 5 volt systems. THD is below 0.01% with a greater drive capability than can usually be provided by CMOS 600 Ω load, and noise is a respectable 21 nV/√Hz. Supply current outputs. CMOS ASICs and DAC often have outputs that can is less than 3.5 mA per amplifier. swing to both the positive supply and ground, but cannot drive The single OP179 is available in the 5-lead SOT-23-5 package. more than a few milliamps. It is specified over the industrial (–40°C to +85°C) tempera- Bandwidth is typically 5 MHz and the slew rate is 3 V/µs, making ture range. these amplifiers well suited for single supply applications that The OP279 is available in 8-lead TSSOP and SO-8 surface require audio bandwidths when used in high gain configurations. mount packages. They are specified over the industrial (–40°C Operation is guaranteed from voltages as low as 4.5 V, up to 12 V. to +85°C) temperature range. REV. G Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that
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