DG211DY Maxim Integrated Products, DG211DY Datasheet - Page 6

• Manufacturer Part Number: DG211DY
• Description: Analog Switch ICs
• Manufacturer: Maxim Integrated Products

Specifications of DG211DY

• Switch Configuration: SPST
• On Resistance (max): 175 Ohms at +/- 15 V
• On Time (max): 1000 ns at +/- 15 V
• Off Time (max): 500 ns at +/- 15 V
• Maximum Power Dissipation: 696 mW
• Maximum Operating Temperature: + 85 C
• Package / Case: SOIC-16 Narrow
• Minimum Operating Temperature: - 40 C
• Switch Current (typ): 0.02 mA at 15 V, - 0.01 mA at - 15 V
• Lead Free Status / Rohs Status: No

Quad SPST CMOS Analog Switches
Figure 1. Switching Time
Typical R
Fault conditions occur when power supplies are turned
off when input signals are still present, or when over-
voltages occur at the inputs during normal operation. In
either case, source-to-body diodes can be forward
biased and conduct current from the signal source. If
this current is required to be kept to low (µA) levels
then the addition of external protection diodes is rec-
ommended.
6
POWER SUPPLIES
_______________________________________________________________________________________
TOP VIEW
Pin Configurations (continued)
t
t
f
r
OUTPUT
SWITCH
SWITCH
< 20ns
< 20ns
±10V
±15V
LOGIC
±5V
INPUT
INPUT
GND
DS(ON)
S1
S4
V-
3V
V
S
0
1
2
3
4
Protecting Against Fault
D1
16
D4
5
0
vs. Power Supplies for Maxim’s DG201A, and DG211
50%
IN1
IN4
15
t
ON
6
DG201A
DG211
QFN*
V
0
LOGIC "0" - SW ON
350Ω
-5V
IN2
IN3
14
—
—
0.9
7
D2
D3
13
8
Conditions
12
11
10
9
S2
V+
N.C.
S3
t
t
off1
off2
380Ω
V
V
+5V
0
0
—
—
0.9
0.1
R
DS(ON)
165Ω
125Ω
-10V
AT ANALOG SIGNAL LEVEL
—
To provide protection for overvoltages up to 20V above
the supplies, a 1N4001 or 1N914 type diode should be
placed in series with the positive and negative supplies
as shown in Figure 2. The addition of these diodes will
reduce the analog signal range to 1V below the posi-
tive supply and 1V above the negative supply.
Figure 2. Protection against Fault Conditions
SWITCH
V
LOGIC
INPUT
INPUT
S
= +2V
-15V
Ω
IN
S
1
1
IN4001
0
GND
250Ω
160Ω
+10V
—
1
2
6
3
4
5
7
8
+15V
-15V
V-
V +
DG201A
DG211
(REPEAT TEST FOR IN
D
1
1kΩ
R
135Ω
L
-15V
—
—
16
15
14
13
12
11
10
9
V
0
2
SWITCH
OUTPUT
, IN
= V
35pF
C
IN4001
L
3
S
, AND IN
R
L
V
+ R
0
R
DS(ON)
L
+15V
155Ω
4
)
—
—
+15V