19-0391; Rev 0; 5/95
Lo w -Vo lt a g e , Qu a d , S P DT,
CMOS An a lo g S w it c h
MAX394
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ Low On-Resistance, < 17Ω Typical (35Ω max)
The MAX394 is a precision, low-voltage, quad, single-
pole/double-throw (SPDT) analog switch. The four inde-
pendent 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 (∆4Ω
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.
♦ Guaranteed Matched On-Resistance Between
Channels, < 2Ω
♦ Guaranteed Flat On-Resistance over Analog
Signal Range, ∆4Ω 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.
______________Ord e rin g In fo rm a t io n
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
20 Plastic DIP
20 Wide SO
Dice*
MAX394CPP
MAX394CWP
MAX394C/D
MAX394EPP
MAX394EWP
MAX394MJP
Logic inputs are TTL and CMOS compatible and guaran-
teed over a +0.8V to +2.4V range for supply voltages up
to +8V. When supplies exceed +8V, the inputs are typi-
cally +0.8V to +4V. Logic inputs and switched analog sig-
nals can range anywhere between the supply voltages
without damage.
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
20 Plastic DIP
20 Wide SO
20 CERDIP**
________________________Ap p lic a t io n s
*
Contact factory for dice specifications.
Test Equipment
Portable Instruments
Audio Signal Routing
Set-Top Boxes
** Contact factory for availability.
Communications Systems
PBX, PABX
__________Typ ic a l Op e ra t in g Circ u it
Heads-Up Displays
INPUTS
OUTPUTS
V - V
V
1
1
2
__________________P in Co n fig u ra t io n
TOP VIEW
V
2
IN1
NO1
IN4
1
2
20
19
18
17
16
15
14
13
12
11
NO4
COM4
NC4
V+
OSC
IN
COM1
NC1
3
4
V-
GND
NC2
5
MAX394
N.C.
NC3
COM3
NO3
IN3
6
7
V - V
V
3
3
4
COM2
NO2
8
9
V
4
IN2
10
DIP/SO
FLYING CAPACITOR
LEVEL TRANSLATOR
(2-CHANNEL)
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED
________________________________________________________________ Maxim Integrated Products
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .