19-1497; Rev 0; 8/99
Dual, 5Ω Analog Switches
Features
o Low On-Resistance: 3Ω (typ), 5Ω (max)
o Guaranteed RON Match Between Channels
(0.5Ω max)
o Guaranteed Break-Before-Make Operation
(MAX4622)
o Guaranteed Off-Channel Leakage <5nA at +85°C
o Single-Supply Operation (+4.5V to +36V)
Bipolar-Supply Operation (±4.5V to ±18V)
o TTL/CMOS-Logic Compatible
o Rail-to-Rail® Analog Signal Handling Capability
These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical
relays in automatic test equipment or applications
where current switching is required. They have low
power requirements, use less board space, and are more
reliable than mechanical relays.
The MAX4621/MAX4622/MAX4623 are pin-compatible
replacements for the DG401/DG403/DG405, respectively, offering improved overall performance. These monolithic switches operate from a single positive supply
(+4.5V to +36V) or with bipolar supplies (±4.5V to ±18V)
while retaining CMOS-logic input compatibility.
o Pin Compatible with DG401/DG403/DG405
Applications
Reed Relay Replacement
Test Equipment
Military Radios
PBX, PABX Systems
Communication Systems
Data-Acquisition Systems
Audio-Signal Routing
Avionics
Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX4621CSE
16 Narrow SO
MAX4621CPE
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
0°C to +70°C
0°C to +70°C
16 Plastic DIP
Ordering Information continued at end of data sheet.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
COM1 1
16 NO1
COM1 1
16 NO1
N.C. 2
N.C. 2
15 IN1
N.C. 3
14 V-
N.C. 4
13 GND
15 IN1
NC3 4
COM3 3
14 V13 GND
COM1 1
16 NO1
N.C. 2
15 IN1
COM3 3
14 V-
NO3 4
13 GND
12 VL
NC4 5
MAX4622 12 VL
NO4 5
N.C. 6
11 V+
COM4 6
11 V+
COM4 6
11 V+
N.C. 7
10 IN2
N.C. 7
10 IN2
N.C. 7
10 IN2
N.C. 5
MAX4621
COM2 8
9
NO2
COM2 8
COM2 8
9
SO/DIP
SO/DIP
MAX4621
LOGIC
SWITCH
0
1
9
NO2
MAX4623 12 VL
OFF
ON
LOGIC
0
1
SO/DIP
MAX4622
SWITCHES 1, 2 SWITCHES 3, 4
OFF
ON
NO2
ON
OFF
MAX4623
LOGIC
SWITCH
0
1
OFF
ON
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
MAX4621/MAX4622/MAX4623
General Description
The MAX4621/MAX4622/MAX4623 are precision, dual,
high-speed analog switches. The single-pole/singlethrow (SPST) MAX4621 and double-pole/single-throw
(DPST) MAX4623 dual switches are normally open
(NO). The single-pole/double-throw (SPDT) MAX4622
has two normally closed (NC) and two NO poles. All
three parts offer low 5Ω on-resistance guaranteed to
match to within 0.5Ω between channels and to remain
flat over the full analog signal range (∆0.5Ω max). They
also offer low leakage (<500pA at +25°C, <5nA at
+85°C) and fast switching times (turn-on time <250ns,
turn-off time <200ns).
