High-Output-Drive, 10MHz, 10V/µs, Rail-to-Rail I/O Op Amp with Shutdown0 pages

AS1710/AS1712
High-Output-Drive, 10MHz, 10V/ìs, Rail-to-Rail I/O
Op Amps with Shutdown
www.austriamicrosystems.com/Audio/OpAmps/AS1710_12 Revision 1.07 1 - 17
Datasheet
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 (32Ù), 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 16.
These rail-to-rail I/O, wide-bandwidth amplifiers exhibit a
high slew rate of 10V/ìs 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).
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: 2.7 to 5.5V
! Gain-Bandwidth Product: 10MHz
! High Slew Rate: 10V/ìs
! Voltage Gain: 100dB (RLOAD = 100kÙ)
! 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
(32Ù), 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
w/Shutdown
TQFN-16
3x3mm
VBIAS
RIN Headphone Jack
to 32Ù Stereo
Headset
CIN
+
–
AS1710
RF
CIN RIN
RF
+
–
AS1710
COUT
+
COUT
+
Audio In
Left
Audio In
Right