Document
19-0189; Rev 1; 6/99
Precision, Quad, SPDT, CMOS Analog Switch
MAX333A
_______________General Description
The MAX333A is a precision, quad, single-pole doublethrow (SPDT) analog switch. The four independent switches operate with bipolar supplies ranging from ±4.5V to ±20V, or with a single-ended supply between +10V and +30V. The MAX333A offers low on resistance (less than 35Ω), guaranteed to match within 2Ω between channels and to remain flat over the analog signal range (∆3Ω max). It also offers break-before-make switching (10ns typical), with turn-off times less than 145ns and turn-on times less than 175ns. The MAX333A is ideal for portable operation since quiescent current runs less than 50µA with all inputs high or low.
This monolithic, quad switch is fabricated with Maxim’s new improved silicon-gate process. Design improvements guarantee extremely low charge injection (10pC), low power consumption (3.75mW), and electrostatic discharge (ESD) greater than 2000V.
Logic inputs are TTL and CMOS compatible and guaranteed over a +0.8V to +2.4V range—regardless of supply voltage. Logic inputs and switched analog signals can range anywhere between the supply voltages without damage.
________________________Applications
Test Equipment
Communications Systems
PBX, PABX
Heads-Up Displays
Portable Instruments
__________________Pin Configuration
TOP VIEW
IN1 1 NO1 2 COM1 3 NC1 4
V- 5 GND 6 NC2 7 COM2 8 NO2 9 IN2 10
MAX333A
20 IN4 19 NO4 18 COM4 17 NC4 16 V+ 15 N.C. 14 NC3 13 COM3 12 NO3 11 IN3
DIP/SO/TSSOP
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT N.C. = NOT INTERNALLY CONNECTED
____________________________Features
o Upgraded Replacement for a DG211/DG212 Pair or Two DG403s
o Low On Resistance < 17Ω Typical (35Ω Max) o Guaranteed Matched On Resistance Between
Channels < 2Ω o Guaranteed Flat On Resistance over Analog
Signal Range ∆3Ω Max o Guaranteed Charge Injection < 10pC
o Guaranteed Off-Channel Leakage < 6nA at +85°C
o ESD Guaranteed > 2000V per Method 3015.7
o Single-Supply Operation (+10V to +30V) Bipolar-Supply Operation (±4.5V to ±20V)
o TTL-/CMOS-Logic Compatibility
o Rail-to-Rail Analog Signal Handling Capability
______________Ordering Information
PART MAX333ACPP MAX333ACWP MAX333ACUP MAX333AC/D MAX333AEPP MAX333AEWP MAX333AEUP MAX333AMJP
TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C
PIN-PACKAGE 20 Plastic DIP 20 Wide SO 20 TSSOP Dice* 20 Plastic DIP 20 Wide SO 20 TSSOP 20 CERDIP
* Contact factory for dice specifications.
__________Typical Operating Circuit
INPUTS V1
V2
OUTPUTS V1 - V2
OSC IN
V3 V3 - V4
V4
FLYING CAPACITOR LEVEL TRANSLATOR
(2-CHANNEL)
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.
Precision, Quad, SPDT, CMOS Analog Switch
MAX333A
ABSOLUTE MAXIMUM RATINGS
V+ to V- ..................................................................................44V
VIN, VCOM, VNO, VNC ......................................................V- to V+ (VNO - VNC) ............................................................................32V V+ to Ground..........................................................................30V V- to Ground..........................................................................-30V Current, Any Terminal Except VCOM, VNO, or VNC .............30mA Continuous Current, VCOM, VNO, or VNC ............................20mA Peak Current, VCOM, VNO, or VNC
(Pulsed at 1ms, 10% duty cycle max) ............................70mA ESD ....................................................................................2000V
Note 1: Device mounted with all leads soldered to PC board.
Continuous Power Dissipation (TA = +70°C) (Note 1)
Plastic DIP (derate above +70°C by 11.11mW/°C) .....889mW SO (derate above +70°C by 10.00mW/°C) ..................800mW CERDIP (derate above +70°C by 11.11mW/°C) ..........889mW TSSOP (derate above +70°C by 7mW/°C) ..................559mW Operating Temperature Ranges: MAX333AC_ _ .....................................................0°C to +70°C MAX333AE_ _ ..................................................-40°C to +85°C MAX333AMJP ................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
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.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(GND = 0V, V+ = +15V, V- = -1.