OPA337_16 Datasheet, PDF (10/25 Pages) Texas Instruments – MicroSIZE, Single-Supply CMOS OPERATIONAL AMPLIFIERS

OPA337, OPA2337
OPA338, OPA2338
SBOS077B − JUNE 1997 − REVISED MARCH 2005
www.ti.com
V+ = +2.7V to 5V
Passband 300Hz to 3kHz
R₁
1.5kΩ
R₂
1MΩ
C₁
Electret
Microphone⁽¹⁾
1000pF
R₃
1MΩ
R₄
20kΩ
1/2
OPA2337E
R₆
100kΩ
R₇
51kΩ
R₈
150kΩ
C₂ 1000pF
NOTE: (1) Electret microphone
with internal transistor (FET)
powered by R₁.
R₅
20kΩ
G = 100
R₉
510kΩ
C₃
33pF
1/2
OPA2337E
V_REF 1 V₊ 8
+IN
ADS7822
2
12−Bit A/D
−IN
3 _{GND 4}
DCLOCK
7 _DOUT
6 _CS/SHDN
5
Serial
Interface
Figure 6. Low-Power, Single-Supply, Speech Bandpass Filtered Data Acquisition System
0.027
(0.686)
SOT23−5
(Package Designator: D)
0.075
(1.905)
SOT23−8
(Package Designator: DCN)
0.0375
(0.9525)
0.0375
(0.9525)
0.018
(0.457)
For further information on solder
pads for surface−mount packages, consult Application Bulletin SBFA015A.
Figure 7. Recommended SOT23-5 and SOT23-8 Solder Footprints
0.026
(0.66)
10