19-0350; Rev 0; 12/94
Precision, Dual-Supply, SPST
Analog Switches
________________________Applications
Battery-Operated Systems
Sample-and-Hold Circuits
Heads-Up Displays
Guidance and Control Systems
Audio and Video Switching
Military Radios
Test Equipment
Communications Systems
±5V DACs and ADCs
PBX, PABX
____________________________Features
o Low On-Resistance, 35Ω max (16Ω typical)
o RON Matching Between Channels <2Ω
o RON Flatness <4Ω
o Guaranteed Charge Injection <5pC
o Bipolar Supply Operation (±3V to ±8V)
o Low Power Consumption, <1.25mW
o Low Leakage Current Over Temperature,
<2.5nA at +85°C
o Fast Switching, tON <150ns, tOFF <100ns
o Guaranteed Break-Before-Make (MAX322 only)
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX320CPA
0°C to +70°C
8 Plastic DIP
MAX320CSA
0°C to +70°C
8 SO
MAX320CUA
0°C to +70°C
8 µMAX
MAX320C/D
0°C to +70°C
Dice*
MAX320EPA
-40°C to +85°C
8 Plastic DIP
MAX320ESA
-40°C to +85°C
8 SO
MAX320EJA
-40°C to +85°C
8 CERDIP**
MAX320MJA
-55°C to +125°C
8 CERDIP**
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for availability.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
MAX320
MAX321
NO1 1
8
COM1 2
7
IN1
IN2 3
6
COM2
V- 4
5
NO2
V+
MAX322
NC1 1
8
COM1 2
7
IN1
IN2 3
6
COM2
V- 4
5
NC2
DIP/SO/µMAX
MAX321
LOGIC
SWITCH
NO1 1
8
V+
COM1 2
7
IN1
IN2 3
6
COM2
V- 4
5
NC2
DIP/SO/µMAX
MAX320
LOGIC
SWITCH
V+
0
1
OFF
ON
0
1
ON
OFF
DIP/SO/µMAX
LOGIC
MAX322
SWITCH 1
SWITCH 2
0
1
OFF
ON
ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX320/MAX321/MAX322
_______________General Description
The MAX320/MAX321/MAX322 are precision, dual,
SPST analog switches designed to operate from ±3V to
±8V dual supplies. The MAX320 has two normally open
(NO) switches and the MAX321 has two normally
closed (NC) switches. The MAX322 has one NO and
one NC switch. Low power consumption (1.25mW)
makes these parts ideal for battery-powered equipment. They offer low leakage currents (100pA max) and
fast switching speeds (tON = 150ns max, tOFF = 100ns
max).
The MAX320 series, powered from ±5V supplies, offers
35Ω max on-resistance (R ON ), 2Ω max matching
between channels, and 4Ω max RON flatness.
These switches also offer 5pC max charge injection
and a minimum of 2000V ESD protection per Method
3015.7.
For equivalent devices specified for single-supply operation, see the MAX323/MAX324/MAX325 data sheet.
For quad versions of these switches, see the
MAX391/MAX392/MAX393 data sheet.
