Features: Low On-Resistance, 35Ω max (16Ωtypical)
RON Matching Between Channels <2Ω
RON Flatness <4Ω
Guaranteed Charge Injection <5pC
Bipolar Supply Operation (±3V to ±8V)
Low Power Consumption, <1.25mW
Low Leakage Current Over Temperature,
<2.5nA at +85°C
Fast Switching, tON <150ns, tOFF<100ns
Guaranteed Break-Before-Make (MAX322 only)ApplicationBattery-Operated SystemsSample-and-Hold Circuits
Heads-Up DisplaysGuidance and Control Systems
Audio and Video SwitchingMilitary Radios
Test EquipmentCommunications Systems
±5V DACs and ADCsPBX, PABXPinout
SpecificationsV+..................................................................(V- - 0.3V) to +17V
IN_, COM_, NC_, NO_ (Note 1).............(V- - 0.3V) to (V+ + 0.3V)
Continuous Current (any terminal)......................................30mA
Peak Current, COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle max)................................100mA
ESD per Method 3015.7...................................................>2000V
Continuous Power Dissipation
Plastic DIP (derate 9.09mW/°C above +70°C)................727mW
Narrow SO (derate 5.88mW/°C above +70°C)................471mW
µMAX (derate 4.10mW/°C above +70°C).........................330mW
CERDIP (derate 8.00mW/°C above +70°C)......................640mW
Operating Temperature Ranges
MAX32_C_ _............................................................0°C to +70°C
MAX32_E_ _.........................................................-40°C to +85°C
MAX32_MJA.........................................................-55°C to +125°C
Storage Temperature Range...............................-65°C to +150°C
Lead Temperature (soldering, 10sec)..................................+300°C
DescriptionThe max321 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 equip-ment. They offer low leakage currents (100pA max) andfast switching speeds (tON = 150ns max, tOFF = 100nsmax).The MAX320 series, powered from ±5V supplies, offers 35Ω max on-resistance (RON) of the max321, 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 oper- ation, see MAX323/MAX324/MAX325 data sheet.For quad versions of these switches, see theMAX391/MAX392/MAX393 data shee
max321 Data Sheet
