AS1710/AS1712

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

Op Amps with Shutdown

Dat a Sh eet

www.austriamicrosystems.com

Revision 1.06

1 - 17

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 (2.7 to 5.5V).

These devices were specifically designed to drive typical

headset levels (32

Ω), as well as bias RF power amplifi-

ers for wireless handset applications.

The devices are available as the standard products

shown in Table 1. See also Ordering Information on

page 16.

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 ver-

sions) drives the output low.

These devices operate over the entire automotive tem-

perature range (-40°C to +125°C).

Figure 1. Typical Application

2 Key Features

!

Constant 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

!

Ω)

!

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

Ω), hands-free mobile phone kits, TFT panels, sound

ports/cards, set-top boxes, biasing controls, DAC con-

verter 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

w/Shutdown

TQFN-16

3x3mm

Headphone Jack

to 32

Ω Stereo

Headset

+

–

AS1710

+

–

AS1710

+

+

Audio In

Left

Audio In

Right