MAX321：Precision, Dual Supply, SPST, Analog CMOS Switches

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 (RON), 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.

Key Features

Low On-Resistance, 35Ω max (16Ω typical)
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)

MAX320, MAX321, MAX322: Pin Configuration

Applications/Uses

±5V DACs and ADCs
Audio and Video Switching
Battery-Powered Applications
Communication Systems
Guidance and Control Systems
Heads-Up Displays
Military Radios
PBX, PABX
Sample-and-Hold Circuits
Test Equipment

DataSheet

title	Download file
MAX320-MAX322 Data Sheet	MAX320-MAX322.pdf

Parametrics

Part Number	Functions	Config.	Channels	Normal Position	V_SUPPLY (Dual) (±V)	V_SUPPLY (Dual) (±V)	R_ON (Ω)	I_L(OFF) (nA)	t_ON (ns)	t_OFF (ns)	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	Budgetary Price
Part Number	Functions	Config.	Channels	Normal Position	min	max	max	max	min	max	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	See Notes
MAX320	Switch	SPST	2	Open	2.7	8	35	0.1	150	100	5	22	9	µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8	$1.63 @1k
MAX321				Closed										µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8
MAX322				Open/Closed										µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX321C/D	No Longer Available		DICE SALES,;NA pin;DICE;	0°C to +70°C	See data sheet
MAX321CPA	No Longer Available	MAX321CPA+	PDIP(N),;8 pin;79.7 mm²	0°C to +70°C	No
MAX321CPA+	Active		PDIP(N),;8 pin;79.7 mm²	0°C to +70°C	Lead Free
MAX321CSA	No Longer Available	MAX321CSA+	SOIC(N),;8 pin;30.9 mm²	0°C to +70°C	No
MAX321CSA+	Active		SOIC(N),;8 pin;30.9 mm²	0°C to +70°C	Lead Free
MAX321CSA+T	Active		N.SO;	0°C to +70°C	See data sheet
MAX321CSA-T	No Longer Available	MAX321CSA+T	N.SO;8 pin	0°C to +70°C	See data sheet
MAX321CUA	No Longer Available	MAX321CUA+	µMAX,;8 pin;15.6 mm²	0°C to +70°C	No
MAX321CUA+	Active		µMAX,;8 pin;15.6 mm²	0°C to +70°C	Lead Free
MAX321CUA+T	Active		µMAX,;8 pin;15.6 mm²	0°C to +70°C	Lead Free
Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX321CUA-T	No Longer Available	MAX321CUA+T	µMAX,;8 pin;15.6 mm²	0°C to +70°C	No
MAX321EJA	No Longer Available		CDIP(N),;8 pin;82.6 mm²	-40°C to +85°C	No
MAX321EPA	No Longer Available		PDIP(N),;8 pin;79.7 mm²	-40°C to +85°C	No
MAX321ESA	No Longer Available	MAX321ESA+	SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	No
MAX321ESA+	Active		SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	Lead Free
MAX321ESA+T	Active		SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	Lead Free
MAX321ESA-T	No Longer Available	MAX321ESA+T	N.SO;8 pin	-40°C to +85°C	See data sheet
MAX321EUA	No Longer Available		µMAX,;8 pin;15.6 mm²	-40°C to +85°C	No
MAX321EUA-T	No Longer Available		µMAX,;8 pin;15.6 mm²	-40°C to +85°C	No
MAX321MJA	No Longer Available		CDIP(N),;8 pin;82.6 mm²	-55°C to +125°C	No