User Manual
Important AD8565 features:
Single-supply operation: 4.5 V to 16 V
Input capability beyond the rails
Rail-to-rail output swing
Continuous output current: 35 mA
Peak output current: 250 mA
Offset voltage: 10 mV
Slew rate: 6 V/μs
Unity gain stable with large capacitive loads
Supply current: 700 μA per amplifier
Qualified for automotive applications Low cost
The protection circuit in
Fig. 6 limit the Output stage supply currents, with fold-back:
The corner current (when V = 0.4V) is:
The short-to-
GND () current (when AVCC8V0AWG1 is forced to 0V) is:
The current (when AVCC8V0AWG1 is forced to -15V) is:
Figure 6. AWG Output stage protection []
2.3. AWG output stage protection
=
AV CC
8
V
0 ⋅
R
77
R
72
+
R
77
(
AV CC
8
V
0 −
R
70
⋅
I
out
) ⋅
R
74
+
AV CC
8
V
0
AWG
1 ⋅
R
73
R
73
+
R
74
I
out
= 0.0411 ⋅ + 0.012 ⋅ (14)
AV CC
8
V
0
10Ω
AV CC
8
V
0
AWG
1
10Ω
CE
I
outC
= 42
mA
(15)
I
outSGND
= 33
mA
(16)
I
outS
−15
= 14
mA
(17)
2.5. AWG Spectral Characteristics
