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, t
OFF
= 100ns
max).
The MAX320 series, powered from ±5V supplies, offers
35Ω max on-resistance (RON), 2Ω max matching
between channels, and 4Ω max RONflatness.
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 the MAX323/MAX324/MAX325 data sheet.
For quad versions of these switches, see the
MAX391/MAX392/MAX393 data sheet.
________________________Applications
Battery-Operated Systems Sample-and-Hold Circuits
Heads-Up DisplaysGuidance and Control Systems
Audio and Video Switching Military Radios
Test EquipmentCommunications Systems
±5V DACs and ADCsPBX, PABX
____________________________Features
♦ Low On-Resistance, 35Ω max (16Ω typical)
♦ RONMatching Between Channels <2Ω
♦ RONFlatness <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, t
OFF
<100ns
♦ Guaranteed Break-Before-Make (MAX322 only)
______________Ordering Information
PIN-PACKAGETEMP. RANGEPART
MAX320CPA
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for availability.
8 Plastic DIP0°C to +70°C
8 SO0°C to +70°CMAX320CSA
8 µMAX0°C to +70°CMAX320CUA
Dice*0°C to +70°CMAX320C/D
8 Plastic DIP-40°C to +85°CMAX320EPA
8 SO-40°C to +85°CMAX320ESA
8 CERDIP**-40°C to +85°CMAX320EJA
8 CERDIP**-55°C to +125°CMAX320MJA
Narrow SO (derate 5.88mW/°C above +70°C) .............471mW
Note 1: Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to
maximum current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 2: The algebraic convention where the most negative value is a minimum and the most positive value a maximum is used in
this data sheet.
Note 3: Guaranteed by design.
Note 4: ∆R
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
= ∆RONmax - ∆RONmin.
ON
specified analog signal range.
Note 6: Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at +25°C.
Note 7: Off Isolation = 20 log10[ V
Note 8: Between any two switches.
= 3.5V, V
INH
I
INH
I
INL
V+ = 5V ±10%, V- ≤ 0V
INH
3V < V+ < 8V, V- ≤ 0V
V+ = 5V ±10%, V- ≤ 0V
INL
3V < V+ < 8V, V- ≤ 0V
V
ON
COM
V
OFF
COM
MAX322 only, RL= 300Ω, CL= 35pF, Figure 3
t
D
CL= 1.0nF, V
Q25pC
R
GEN
RL= 50Ω, CL= 5pF,
f = 1MHz, Figure 5
RL= 50Ω, CL= 5pF,
f = 1MHz, Figure 6
(OFF)
= 2.5V, TA= T
INL
= ±3V, Figure 2
= ±3V, Figure 2Turn-Off Timet
= 0V,
GEN
= 0Ω, Figure 4
to T
MIN
CONDITIONS
TA= +25°C
TA= T
TA= +25°C
TA= T
TA= +25°C
TA= +25°C
TA= +25°C
TA= +25°Cf = 1MHz, Figure 7NC or NO CapacitanceC
TA= +25°Cf = 1MHz, Figure 7COM Off Capacitance C
TA= +25°Cf = 1MHz, Figure 8COM On CapacitanceC