AS1712AAQFT austriamicrosystems, AS1712AAQFT Datasheet - Page 9

• Manufacturer Part Number: AS1712AAQFT
• Description: IC, OP-AMP, 10MHZ, 10V/µs, TQFN-16
• Manufacturer: austriamicrosystems

Specifications of AS1712AAQFT

• Op Amp Type: Low Offset Voltage
• No. Of Amplifiers: 4
• Bandwidth: 10MHz
• Slew Rate: 10V/µs
• Supply Voltage Range: 2.7V To 5.5V
• Amplifier Case Style: TQFN
• No. Of Pins: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AS1710/AS1712
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
8 Application Information
Package Power Dissipation
Caution: Due to the high output current drive, this op amp can exceed the absolute maximum power-dissipation rat-
The absolute maximum power-dissipation rating of each package should always be verified. (EQ 1) gives an approxi-
mation of the package power dissipation:
Where:
V
I
θ
Figure 21. Typical AS1710/AS1712 Single-Supply Application
V
Where:
V
V
For the circuit shown in
I
Where:
I
I
For the circuit shown in
Therefore, for the circuit in
Adding a coupling capacitor improves the package power dissipation because there is no DC current to the load, as
shown in
www.austriamicrosystems.com
RMS
RMS
DC
PEAK
RMS
RMS
DC
PEAK
is the phase difference between the voltage and the current. For resistive loads, COS
is the DC component of the output current.
is the DC component of the output voltage.
can be calculated as:
is the RMS current flowing in or out of the op amp and the load.
is the highest positive excursion of the AC component of the output current.
is the RMS voltage from V
can be calculated as:
is the highest positive excursion of the AC component of the output voltage.
Figure 22 on page
ing. Normally, when peak current is less than or equal to 40mA the maximum package power dissipation is
not exceeded for any of the package types offered.
Figure
Figure
V
IN
Figure 21
= 2V
10.
21:
21:
P-P
DD
I
RMS
to V
V
P
the package power dissipation can be calculated as:
RMS
PACKAGEDISS
P
OUT
V
= (1.8V/32Ω) + (1.0V/32Ω)/
PACKAGEDISS
C
RMS
= (3.6V - 1.8V) + 1.0V/
I
R
R
RMS
when sourcing current, and from V
≅
(V
≅
DD
IDC + (IPEAK/
= V
Revision 1.06
- V
≅
+
–
RMS
V
AS1710
DC
RMS
) + V
I
3.6V
RMS
I
RMS
PEAK
COS
√
√
2)
COS
2 = 2.507V
√
2 = 78.4mA
/
√
θ
2
θ
= 196mW
RMS
32Ω
OUT
RMS
to V
SS
θ
= 1.
when sinking current.
(EQ 1)
(EQ 2)
(EQ 3)
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