MAX307 Maxim, MAX307 Datasheet - Page 6

• Manufacturer Part Number: MAX307
• Description: The MAX306/MAX307 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 5Ω between channels and remains flat over the specified analog signal range (7Ω max)
• Manufacturer: Maxim

Using supply voltages other than ±15V will reduce the
analog signal range. The MAX306/MAX307 switches
operate with ±4.5V to ±20V bipolar supplies or with a
+5V to +30V single supply; connect V- to GND when
operating with a single supply. Also, both device types
can operate with unbalanced supplies such as +24V
and -5V. The Typical Operating Characteristics graphs
show typical on-resistance with 20V, 15V, 10V, and 5V
supplies. (Switching times increase by a factor of two
or more for operation at 5V.)
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings may cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by either
the logic inputs, NO or COM. If power-supply sequenc-
ing is not possible, add two small-signal diodes in
series with supply pins for overvoltage protection
(Figure 1). Adding diodes reduces the analog signal
Precision, 16-Channel/Dual 8-Channel,
High-Performance, CMOS Analog Multiplexers
_____________________________________________________________Pin Descriptions
6
__________Applications Information
MAX306
2, 3, 13
14–17
19–26
4–11
PIN
_______________________________________________________________________________________
12
18
27
28
1
NO16–NO9
NO1–NO8
NAME
A3–A0
COM
GND
N.C.
EN
Operation with Supply Voltages
V+
V-
Positive Supply Voltage Input
No Connection. Not internally
connected.
Analog Inputs–bidirectional
Ground
Address Inputs
Enable Inputs
Analog Inputs–bidirectional
Negative Supply Voltage Input
Output–bidirectional
Overvoltage Protection
FUNCTION
Other than ±15V
range to 1V above V+ and 1V below V-, but low switch
resistance and low leakage characteristics are unaf-
fected. Device operation is unchanged, and the differ-
ence between V+ and V- should not exceed +44V.
Figure 1. Overvoltage Protection Using External Blocking
Diodes
15, 16, 17
MAX307
3, 13, 14
19–26
4–11
PIN
12
18
27
28
1
2
V
g
NO8B–NO1B
NO1A–NO8A
A2, A1, A0
NO
COMB
COMA
NAME
GND
N.C.
V+
EN
V-
Positive Supply Voltage Input
Output B–bidirectional
No Connection. Not internally
connected.
Analog Inputs–bidirectional
Ground
Address Inputs
Enable Input
Analog Inputs–bidirectional
Negative Supply Voltage Input
Output A–bidirectional
V+
V-
FUNCTION
COM