説明

The AS1710/12 are low-offset, high-output CMOS op amps that deliver 200mA of peak output current from a single supply (2.7V to 5.5V).

These devices were specifically designed to drive typical headset levels (32Ω), as well as bias RF power amplifiers for wireless handset applications.

The devices are available as the following standard products:

These rail-to-rail I/O, wide-bandwidth amplifiers exhibit a high slew rate of 10V/µs and a gain-bandwidth product of 10MHz.

The integrated shutdown feature (not included in B versions) drives the output low.

These devices operate over the entire automotive temperature range (-40°C to +125°C).

主な機能

• Output Drive Capability: 50mA
• Rail-to-Rail Input and Output
• Supply Current: 1.6mA
• Single-Supply Operation: 2.7 to 5.5V
• Gain-Bandwidth Product: 10MHz
• High Slew Rate: 10V/µs
• Voltage Gain: 100dB (RLOAD = 100kΩ)
• Power-Supply Rejection Ratio: -85dB
• No Phase Reversal for Overdriven Inputs
• Unity-Gain Stable for Capacitive Loads: Up to 100pF
• Shutdown Mode (AS1710A) Current: 1nA typ
• Package Types:
  • SC70-6
  • SC70-5
  • TQFN-16 (3x3x0.8mm)

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The devices are ideal for RF PA biasing controls in handset applications, portable/battery-powered audio applications, portable headphone speaker drivers (32Ω), hands-free mobile phone kits, TFT panels, sound ports/ cards, set-top boxes, DAC converter buffers, transformer/line drivers, motor drivers, and any other battery-operated audio device.

Block diagram for AS1710 Operational Amplifier IC