Datasheet

MAX4465–MAX4469
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
6 _______________________________________________________________________________________
Pin Description
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
CM
= 0, V
OUT
= V
CC
/2, R
L
= 100kΩ to V
CC
/2, SHDN = GND (MAX4467/MAX4468 only), T
A
= +25°C, unless otherwise
noted.)
021345
MAX4465-69 toc22
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
40
30
20
10
0
220
40
100 1k 100k 1M
70
130
100
190
160
MAX4465-69 toc23
FREQUENCY (Hz)
e
NOISE
(nV√Hz)
10k
e
NOISE
vs. FREQUENCY
A
VCL
= +1V/V
PIN
MAX4465
MAX4466
MAX4467
MAX4468
MAX4469
NAME FUNCTION
4 6 (8)
—
OUT Amplifier Output
——1 OUTA Amplifier Output A
— 1 (4) — MIC_BIAS
External Microphone Bias Network Switch
Output
3 2 (3) — IN- Inverting Amplifier Input
1 3 (2) — IN+ Noninverting Amplifier Input
2 4 (1) 4 GND Ground
0
5
15
10
20
25
SINK CURRENT vs. OUTPUT VOLTAGE
MAX4465-69 toc24
OUTPUT VOLTAGE (V)
SINK CURRENT (mA)
0 1.0 1.50.5 2.0 2.5 3.0
V
CC
= +5V
V
CC
= +2.4V
0
5
15
10
20
25
SOURCE CURRENT vs. OUTPUT VOLTAGE
MAX4465-69 toc25
OUTPUT VOLTAGE (V)
SOURCE CURRENT (mA)
0 1.0 1.50.5 2.0 2.5 3.0
V
CC
= +5V
V
CC
= +2.4V
( ) denotes S0T23 package of the MAX4467/MAX4468