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MAX308：Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers

The MAX308/MAX309 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 5Ω between channels and remains flat over the specified analog signal range (7Ω max). They also offer low leakage over temperature (NO-off leakage current less than 5nA at +85°C) and fast switching speeds (transition time less than 250ns). The MAX308 is a single-ended 1-of-8 device, and the MAX309 is a differential 2-of-4 device. The MAX308/MAX309 are fabricated with Maxim's improved 44V silicon-gate process. Design improvements yield extremely low charge injection (less than 10pC) and guarantee electrostatic discharge protection greater than 2000V. These muxes operate with a single +5V to +30V supply or bipolar ±5V to ±20V supplies, while retaining TTL/CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading. These improved parts are plug-in upgrades for the industry-standard DG408, DG409, DG508A, and DG509A.

Key Features Guaranteed On-Resistance Match Between Channels, < 5Ω Max Low On-Resistance, < 100Ω Max Guaranteed Flat On-Resistance over Specified Signal Range, 7Ω Max Guarateed Low Charge Injection, < 10pC NO-Off Leakage Current < 5nA at +85°C COM-Off Leakage Current < 20nA at +85°C ESD Protection > 2000V Plug-In Upgrade for Industry-Standard DG408/DG409/DG508A/DG509A Single-Supply Operation (+5V to +30V) Bipolar-Supply Operation (±5V to ±20V) Low Power Consumption, < 300µW Rail-to-Rail Signal Handling TTL/CMOS-Logic Compatible

MAX308: Pin Configuration Applications/Uses Audio-Signal Routing Automated Test Equipment (ATE) Battery-Powered Applications Communication Systems Guidance and Control Systems Heads-Up Displays Military Radios PBX, PABX Sample-and-Hold Circuits

DataSheet

Parametrics

Quality and Environmental Data

• MAX308.pdf

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