Quad, SPST Analog Switches
DG308A/DG309
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
DRAIN-SOURCE ON-RESISTANCE
vs. DRAIN VOLTAGE & POWER SUPPLIES
DG308A309 TOC01
DRAIN-SOURCE ON-RESISTANCE
vs. DRAIN VOLTAGE & POWER SUPPLIES
T
A
= +25°C
V+ = ±5V
DG308A309 TOC04
DG308A309 TOC03
500
V+ = 5V
400
r
DS(ON)
(Ω)
250
T
A
= +25°C
V- = GND
200
r
DS(ON)
(Ω)
300
V+ = 10V
200
V+ = 15V
100
V+ = 20V
0
0
5
10
VD (V)
15
20
150
V+ = ±10V
100
50
V+ = ±12V
0
-15
-10
-5
0
VD (V)
V+ = ±15V
5
10
15
POWER-SUPPLY CURRENT
AND VOLTAGE vs. TEMPERATURE
DG308A309 TOC02
LEAKAGE CURRENTS vs.
ANALOG VOLTAGE
20
10
0
-10
-20
-30
I
S(OFF)
I
D(OFF)
I
D(ON)
T
A
= +25°C
V
CC
= ±15V
800
700
600
I
SUPPLY
(nA)
500
400
T
A
= +25°C
V- = GND
V+ = 44V
V+ = 30V
300
200
100
0
-50
-25
0
25
50
75
100
125
V+ = 10V
V+ = 5V
I
S
, I
D
(pA)
-12
-6
0
VANALOG (V)
6
12
TEMPERATURE (°C)
_____________________Pin Description
PIN
1, 8, 9, 16
2, 7, 10, 15
3, 6, 11, 14
4
5
12
13
NAME
IN1–IN4
D1–D4
S1–S4
V-
GND
N.C.
V+
FUNCTION
Logic Control Inputs
Drain Output
Source Input
Negative Supply Voltage Input
Ground
No Connect. Not internally
connected.
Positive Supply Voltage Input.
Connected to substrate.
__________Applications Information
The DG308A/DG309 switch positive analog signals while
using a single positive supply, allowing use in applica-
tions where only one supply is available. The disadvan-
tages of using a single supply are slower switching
speed and increased r
DS(ON)
. The
Power-Supply
Current and Voltage vs. Temperature
graph shows the
typical curve for a single-supply design. As stated in the
Absolute Maximum Ratings, the analog voltage should
not go above or below the supply voltages, which are V+
and 0V in single-supply operation.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
4
___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1991 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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