AS1710/AS1712

High-Output-Drive, 10MHz, 10V/µs, Rail-to-Rail I/O Op Amps

with Shutdown

www.austriamicrosystems.com/Audio/OpAmps/AS1710_12

Revision 1.9

1 - 19

Data sheet

1 General Description

The AS1710/AS1712 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 (32

), as well as bias RF power amplifiers for wireless

handset applications.

The devices are available as the standard products shown in

Table 1. See also Ordering Information on page 18.

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 industrial temperature range

(-40ºC to +85ºC).

Figure 1. AS1710 - Typical Application

2 Key Features



Constant Output Drive Capability: 50mA



Rail-to-Rail Input and Output



Supply Current: 1.6mA



Single-Supply Operation: 2.7V to 5.5V



Gain-Bandwidth Product: 10MHz



High Slew Rate: 10V/µs



Voltage Gain: 100dB (RLOAD = 100k

)



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 (3x3mm)

3 Applications

The devices are ideal for portable/battery-powered audio

applications, portable headphone speaker drivers (32

), hands-free

mobile phone kits, TFT panels, sound ports/cards, set-top boxes,

biasing controls, DAC converter buffers, transformer/line drivers,

motor drivers, and any other battery-operated audio device.

Table 1. Standard Products

Model

Description

Package

AS1710A

Single Op Amp with Shutdown

SC70-6

AS1710B

Single Op Amp

SC70-5

AS1712A

Quad Op Amp with Shutdown

TQFN-16

(3x3mm)

VBIAS

RIN

Headphone Jack

to 32

 Stereo

Headset

CIN

+

–

AS1710

RF

RIN

CIN

RF

+

–

AS1710

COUT

+

COUT

+

Audio In

Left

Audio In

Right