Op Amps in tiny SOT23-8 package draw low current.

Press Release Summary:

MIC862 dual op amp provides -3dB bandwidth of 5 MHz and gain-bandwidth product of 3 MHz, yet consumes only 31 microA current per channel. MIC863 dual op amp operates at 4.2 microA per channel, while still providing -3 dB bandwidth of 800 kHz and gain-bandwidth product of 450 kHz. Both are unity gain stable and specified at supply voltage of 2, 2.7, and 5 V. Input offset voltage is 0.1 mV (typical), signal voltage gain is 96 dB, PSRR is 92 dB, and CMRR is 87 dB.

Original Press Release:

Tiny Rail-to-Rail Dual Op Amps in SOT23-8 Package Draw 90% Less Current than Competing Devices

SAN JOSE, Calif. -- (July 2, 2002) -- Two tiny rail-to-rail dual operational amplifiers that consume one-tenth the power of comparable devices are now available from Micrel for use in cell phones, PDAs, MP3 players and other portable equipment. Micrel Semiconductor (NASDAO: MCRL) is an industry leader in analog and high-speed communication integrated circuits.

The MIC862 dual op amp provides a -3dB bandwidth of 5MHz and a gain-bandwidth product of 3MHz, yet consumes only 31uA current per channel. For applications that require lower power consumption, the MIC863 dual op amp operates at 4.2uA per channel, while still providing a comfortable -3dB bandwidth of 800kHz and a gain-bandwidth product of 450kHz.

Both op amps operate from 5V down to 2V power supply. Their low power consumption and size make the MIC862 and MIC863 ideal for battery-powered handheld devices such as PDAs, cell phones and micro-portable laptops.

"The dual MIC862 and MIC863, with our recently announced MIC860 and MIC861 single op amps, provide world-beating low power consumption," said Wendy Ng, op amp marketing and applications engineer.

The MIC862 and 863 are unity gain stable. They are specified at supply voltages of 2V, 2.7V and 5V. Input offset voltage is 0.1mV (typical), large signal voltage gain is 96dB, PSRR is 92dB and CMRR is 87dB.

Summary of Features & Applications:

MIC862 and MIC863 Rail-to-Rail Dual Operational Amplifiers

MIC862 Features

- 5MHz, -3dB Bandwidth

- 3MHz Gain-Bandwidth Product

- 2V/us Slew Rate

- 31uA Supply Current

- Operating Supply Voltages from 2V to 5V

- Unity Gain Stable

- Drives Capacitance

- SOT23-8 Packaging

MIC863 Features

- 800kHz, -3dB Bandwidth

- 450kHz Gain-Bandwidth Product

- 0.2V/us Slew Rate

- 4.2uA Supply Current

- Operating Supply Voltages from 2V to 5V

- Unity Gain Stable

- Drives Capacitance

- SOT23-8 Packaging


- Portable Equipment

- Cell phones, PDAs, MP3 Players

The MIC862 and MIC863 in SOT23-8 packaging is priced at $1.25 each in 1k quantities. Samples are available immediately, and production quantities are available in 8 weeks ARO.

Micrel Semiconductor is a leading manufacturer of advanced, high performance communications, clock management, Ethernet switch and physical layer transceiver, mixed signal, analog and power ICs. These products include devices for fiber-optic telecommunications and networking, cellular telephones, servers, portable computer systems, computer peripherals, process control systems, consumer electronics and power supplies.

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