19-0300; Rev 0; 9/94
P re c is io n , Lo w -Vo lt a g e An a lo g S w it c h e s
1/MAX385
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX381/MAX383/MAX385 are precision, low-volt-
a g e a na log s witc he s . The s ing le -p ole s ing le -throw
MAX381 and double-pole single-throw MAX385 dual
switches are normally open. The single-pole double-
throw MAX383 has two normally open and two normally
closed poles. All three parts offer low on-resistance
(le s s tha n 35Ω), g ua ra nte e d to ma tc h to within 2Ω
between channels and to remain flat over the specified
analog signal range (4Ω max). They also offer low leak-
age (less than 250pA at +25°C and less than 2.5nA at
+85°C) and fast switching (turn-on time less than 175ns
and turn-off time less than 100ns).
♦ Single-Supply Operation (+3V to +15V)
Bipolar-Supply Operation (±3V to ±8V)
♦ Pin-Compatible with DG401/DG403/DG405
♦ Low On-Resistance, 20Ω Typical (35Ω Max)
♦ Guaranteed Matched On-Resistance Between
Channels, <2Ω
♦ Guaranteed Flat On-Resistance over Specified
Analog Signal Range, <4Ω
♦ Guaranteed Charge Injection, <5pC
♦ Guaranteed Off-Channel Leakage, <2.5nA at +85°C
The MAX381/MAX383/MAX385 a re fa b ric a te d with
Maxim’s low-voltage silicon-gate process for high sys-
te m a c c ura c y. De s ig n imp rove me nts g ua ra nte e
extremely low charge injection (<5pC) and low power
consumption (<10µW).
♦ TTL/CMOS-Logic Compatible with 3V, 5V, ±3V,
and ±5V Supplies
♦ Rail-to-Rail Analog Signal Handling Capability
______________Ord e rin g In fo rm a t io n
These monolithic switches operate with a single posi-
tive supply (+3V to +15V) or with split supplies (±3V to
±8V) while retaining CMOS-logic input compatibility
and fast switching. CMOS inputs provide reduced input
loading.
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
MAX381CPE
MAX381CSE
MAX381C/D
MAX381EPE
MAX381ESE
MAX381EJE
MAX381MJE
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
16 Plastic DIP
16 Narrow SO
16 CERDIP**
16 CERDIP**
________________________Ap p lic a t io n s
Sample-and-Hold Circuits
Test Equipment
Military Radios
Communication Systems
Battery-Operated Systems
PBX, PABX
Heads-Up Displays
Ordering Information continued on last page.
Dice are tested at T = +25°C only.
** Contact factory for package availability.
*
Audio Signal Routing
Guidance and Control Systems
A
___________________________P in Co n fig u ra t io n s /Blo c k Dia g ra m s /Tru t h Ta b le s
TOP VIEW
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
COM1
N.C.
16
15
14
COM1
COM1
16 NO1
15 IN1
14 V-
16 NO1
15 IN1
14 V-
NO1
IN1
V-
N.C.
COM3
NC3
N.C.
COM3
NO3
N.C.
N.C.
13 GND
13 GND
13 GND
MAX381
N.C.
V+
12
11
10
9
N.C.
N.C.
12
12
NC4
COM4
N.C.
NO4
COM4
N.C.
N.C.
N.C.
MAX385
MAX383
11
10
9
11
V+
V+
10
9
IN2
NO2
IN2
N02
IN2
N.C.
COM2
NO2
COM2
COM2
MAX381
MAX383
MAX385
NC
COM
OFF
OFF
NO
OFF
LOGIC IN
COM, NO
LOGIC IN
SWITCH
LOGIC IN COM
N.C. = NOT INTERNALLY
CONNECTED
OFF
ON
0
1
NC
NO
OFF
0
1
0
1
OFF
ON
COM
OFF
PWR OFF
OFF
PWR OFF
PWR OFF
OFF
________________________________________________________________ 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 .
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