MAX4621 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Dual, 5Ω Analog Switches

19-1497; Rev 0; 8/99
Dual, 5Ω Analog Switches
General Description
The MAX4621/MAX4622/MAX4623 are precision, dual,
high-speed analog switches. The single-pole/single-
throw (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).
These analog switches are ideal in low-distortion appli-
cations 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, respective-
ly, offering improved overall performance. These mono-
lithic 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.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Features
o Low On-Resistance: 3Ω (typ), 5Ω (max)
o Guaranteed R_ON 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
o Pin Compatible with DG401/DG403/DG405
Reed Relay Replacement
Test Equipment
Communication Systems
Data-Acquisition Systems
Applications
Military Radios
PBX, PABX Systems
Audio-Signal Routing
Avionics
Ordering Information
PART
TEMP. RANGE PIN-PACKAGE
MAX4621CSE
0°C to +70°C
16 Narrow SO
MAX4621CPE
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
N.C. 2
N.C. ₃
N.C. ₄
N.C. 5
N.C. 6
N.C. 7
COM2 ₈
MAX4621
16 ^NO1
15 ^IN1
14 ^V-
13 GND
12 VL
11 V+
10 IN2
9 NO2
SO/DIP
MAX4621
LOGIC
SWITCH
0
OFF
1
ON
COM1 ₁
N.C. ₂
COM3 ₃
NC3 ₄
NC4 ₅
COM4 6
N.C. ₇
COM2 ₈
16 ^NO1
15 ^IN1
14 ^V-
13 GND
MAX4622 ^{12 VL}
11 V+
10 IN2
9 NO2
LOGIC
0
1
SO/DIP
MAX4622
SWITCHES 1, 2 SWITCHES 3, 4
OFF
ON
ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
COM1 ₁
N.C. ₂
COM3 ₃
NO3 ₄
NO4 ₅
COM4 6
N.C. ₇
COM2 ₈
16 ^NO1
15 ^IN1
14 ^V-
13 GND
MAX4623 ^{12 VL}
11 V+
10 IN2
9 NO2
SO/DIP
MAX4623
LOGIC
SWITCH
0
OFF
1
ON
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