19-0391; Rev 2; 9/08
Low-Voltage, Quad, SPDT,
CMOS Analog Switch
____________________________Features
The MAX394 is a precision, low-voltage, quad, singlepole/double-throw (SPDT) analog switch. The four independent switches operate with bipolar supplies ranging
from ±2.7V to ±8V, or with a single supply of +2.7V to
+15V. The MAX394 offers low on-resistance (less than
35Ω), guaranteed to match within 2Ω between channels
and to remain flat over the analog signal range (Δ4Ω
max). It also offers break-before-make switching (10ns
typical), with turn-off times less than 75ns and turn-on
times less than 130ns. The MAX394 is ideal for portable
operation since quiescent current runs less than 1µA with
all inputs high or low.
♦ Low On-Resistance, < 17Ω Typical (35Ω max)
♦ Guaranteed Matched On-Resistance Between
Channels, < 2Ω
♦ Guaranteed Flat On-Resistance over Analog
Signal Range, Δ4Ω Max
♦ Guaranteed Charge Injection < 10pC
♦ Guaranteed Off-Channel Leakage < 2.5nA at +85°C
♦ ESD Guaranteed > 2000V per Method 3015.7
♦ Single-Supply Operation (+2.7V to +15V)
Bipolar-Supply Operation (±2.7V to ±8V)
♦ TTL/CMOS-Logic Compatibility
♦ Rail-to-Rail Analog Signal Handling Capability
♦ Pin Compatible with MAX333, MAX333A
This monolithic, quad switch is fabricated with Maxim’s
low voltage silicon-gate process. Design improvements
guarantee extremely low charge injection (10pC), low
power consumption (10µW), and electrostatic discharge
(ESD) greater than 2000V.
Logic inputs are TTL and CMOS compatible and guaranteed over a +0.8V to +2.4V range for supply voltages up
to +8V. When supplies exceed +8V, the inputs are typically +0.8V to +4V. 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
Audio Signal Routing
Set-Top Boxes
Ordering Information
PART
MAX394CPP
TEMPERATURE
PIN-PACKAGE
0°C to +70°C
20 Plastic DIP
MAX394CWP
0°C to +70°C
20 Wide SO
MAX394C/D
0°C to +70°C
Dice*
MAX394EPP
-40°C to +85°C
20 Plastic DIP
MAX394EWP
-40°C to +85°C
20 Wide SO
MAX394EUP
-40°C to +85°C
20 TSSOP
MAX394MJP
-55°C to +85°C
20 CERDIP**
MAX394MWP/PR
-55°C to +125°C
20 Wide SO**
MAX394MWP/PR-T
-55°C to +125°C
*Contact factory for dice specifications.
**Contact factory for availability.
20 Wide SO**
Typical Operating Circuit
__________________Pin Configuration
OUTPUTS
INPUTS
V1
TOP VIEW
IN1 1
20 IN4
NO1 2
19 NO4
V1 - V2
COM1 3
18 COM4
NC1 4
17 NC4
V- 5
GND 6
V2
OSC
IN
16 V+
MAX394
NC2 7
15 N.C.
14 NC3
COM2 8
13 COM3
NO2 9
12 NO3
IN2 10
11
V3 - V4
V3
IN3
V4
DIP/SO/TSSOP
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED
FLYING CAPACITOR
LEVEL TRANSLATOR
(2-CHANNEL)
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
MAX394
_______________General Description
