The MAX338/MAX339 are monolithic, CMOS analog
multiplexers (muxes). The 8-channel MAX338 is
designed to connect one of eight inputs to a common
output by control of a 3-bit binary address. The dual, 4-
channel MAX339 is designed to connect one of four
inputs to a common output by control of a 2-bit binary
address. Both devices can be used as either a mux or
a demux. On-resistance is 400Ω max, and the devices
conduct current equally well in both directions.
These muxes feature extremely low off leakages (less
than 20pA at +25°C), and extremely low on-channel
leakages (less than 50pA at +25°C). The new design
offers guaranteed low charge injection (1.5pC typ) and
electrostatic discharge (ESD) protection greater than
2000V, per method 3015.7. These improved muxes are
pin-compatible upgrades for the industry-standard
DG508A and DG509A. For similar Maxim devices with
lower leakage and charge injection but higher on-resistance,
see the MAX328 and MAX329.
The MAX338/MAX339 operate from a single +4.5V to
+30V supply or from dual supplies of ±4.5V to ±20V.
All control inputs (whether address or enable) are TTL
compatible (+0.8V to +2.4V) over the full specified temperature
range and over the ±4.5V to ±18V supply
range. These parts are fabricated with Maxim's 44V silicon-
gate process.
Key Features
Applications/Uses
On-Resistance, <400Ω max
Transition Time, <500ns
On-Resistance Match, <10Ω
NO-Off Leakage Current, <20pA at +25°C
1.5pC Charge Injection
Single-Supply Operation (+4.5V to +30V)
Bipolar-Supply Operation (±4.5V to ±20V)
Plug-In Upgrade for Industry-Standard
DG508A/DG509A
Rail-to-Rail Signal Handling
TTL/CMOS-Logic Compatible
ESD Protection >2000V, per Method 3015.7
Communication Systems
Data Acquisition Systems
Guidance and Control Systems
Heads-Up Displays
Military Radios
PBX, PABX
Sample-and-Hold Circuits
Test Equipment
Key Specifications: Switches and Multiplexers (Mid Voltage)
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