Datasheet

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SBOS077B − JUNE 1997 − REVISED MARCH 2005
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10
1/2
OPA2337E
1/2
OPA2337E
ADS7822
12−Bit A/D
C
3
V
+
GND
3
18
4
5
6
7
−IN
+IN
2
C
2
33pF
DCLOCK
Serial
Interface
1000pF
R
1
1.5kΩ
R
4
20kΩ
R
5
20kΩ
R
6
100k
Ω
R
8
150kΩ
R
9
510kΩ
R
7
51kΩ
D
OUT
V
REF
V+ = +2.7V to 5V
CS/SHDN
C
1
1000pF
Electret
Microphone
(1)
G=100
Passband 300Hz to 3kHz
R
3
1MΩ
R
2
1MΩ
NOTE: (1) Electret microphone
with internal transistor (FET)
powered by R
1
.
Figure 6. Low-Power, Single-Supply, Speech Bandpass Filtered Data Acquisition System
0.035
(0.889)
0.10
(2.54)
0.018
(0.457)
0.026
(0.66)
SOT23−8
(Package Designator: DCN)
For further information on solder
pads for surface−mount packages, consult Application Bulletin SBFA015A.
SOT23−5
(Package Designator: D)
0.035
(0.889)
0.10
(2.54)
0.0375
(0.9525)
0.0375
(0.9525)
0.075
(1.905)
0.027
(0.686)
Figure 7. Recommended SOT23-5 and SOT23-8 Solder Footprints