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超低リーク電流、シングルエンド、モノリシック、CMOSアナログマルチプレクサ

製品の詳細

The MAX328/MA329 are monolithic CMOS analog multiplexers. The MAX328 is a single-ended, 1-of-8 device, and the MAX329 is a differential, 2-of-8 device.

Designed to provide the lowest possible on- and off-leakages, these multiplexers switch signals from high source impedance, providing the mux operates into a high-input-impedance op amp or A/D converter. The MAX328/MAX329 are pin-for-pin replacements for the popular DG508/DG509 in these applications.

Adding an external 40kΩ resistor to each input makes the MAX328/MAX329 an excellent fault-tolerant multiplexer. Low leakage (less than 1pA at +25°C) and 2.5kΩ on-resistance allow the circuit to sustain 110V AC faults indefinitely while maintaining an error of less than 40nV for normal signals (i.e., 1pA times 40kΩ).

The MAX328/MAX329 work equally well with a single supply of 10V to 30V or dual supplies of ±5V to ±18V. They also perform well with unbalanced combinations of supply voltage, such as +12V and -5V or +5V and -15V. Low power dissipation (1.9mW with ±15V supplies) allows use in portable applications.

主な機能

  • Ultra-Low Off- and On-Leakage: 1pA Typ
  • Bidirectional Operation (Use as Mux or Demux)
  • TTL and CMOS Logic Compatibility
  • Analog-Signal Range Includes Power-Supply Rails
  • Switching Speeds Less Than 1.5µs
  • Pin Compatible with DG508/DG509 and MAX358/MAX359
  • Latchup Proof Construction

アプリケーション/用途

Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Configuration 8-to-1
# Channels 1
Functions Mux
VSUPPLY (Single) (V) (min) 10
VSUPPLY (Single) (V) (max) 30
VSUPPLY (Dual) (±V) (min) 4.5
VSUPPLY (Dual) (±V) (max) 18
RON (Ω) (max) 3500
Package/Pins PDIP/16
SOIC (W)/16
TQFN/16
Budgetary
Price (See Notes)
$4.23 @1k
全て表示する

簡略化されたブロック図

MAX328、MAX329:標準動作回路 MAX328、MAX329:標準動作回路 Zoom icon

技術資料

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パラメーター

Parametric specs for Switches and Multiplexers (Mid and High Voltage)
Configuration 8-to-1
# Channels 1
Functions Mux
VSUPPLY (Single) (V) (min) 10
VSUPPLY (Single) (V) (max) 30
VSUPPLY (Dual) (±V) (min) 4.5
VSUPPLY (Dual) (±V) (max) 18
RON (Ω) (max) 3500
Package/Pins PDIP/16
SOIC (W)/16
TQFN/16
Budgetary
Price (See Notes)
$4.23 @1k

主な機能

  • Ultra-Low Off- and On-Leakage: 1pA Typ
  • Bidirectional Operation (Use as Mux or Demux)
  • TTL and CMOS Logic Compatibility
  • Analog-Signal Range Includes Power-Supply Rails
  • Switching Speeds Less Than 1.5µs
  • Pin Compatible with DG508/DG509 and MAX358/MAX359
  • Latchup Proof Construction

アプリケーション/用途

説明

The MAX328/MA329 are monolithic CMOS analog multiplexers. The MAX328 is a single-ended, 1-of-8 device, and the MAX329 is a differential, 2-of-8 device.

Designed to provide the lowest possible on- and off-leakages, these multiplexers switch signals from high source impedance, providing the mux operates into a high-input-impedance op amp or A/D converter. The MAX328/MAX329 are pin-for-pin replacements for the popular DG508/DG509 in these applications.

Adding an external 40kΩ resistor to each input makes the MAX328/MAX329 an excellent fault-tolerant multiplexer. Low leakage (less than 1pA at +25°C) and 2.5kΩ on-resistance allow the circuit to sustain 110V AC faults indefinitely while maintaining an error of less than 40nV for normal signals (i.e., 1pA times 40kΩ).

The MAX328/MAX329 work equally well with a single supply of 10V to 30V or dual supplies of ±5V to ±18V. They also perform well with unbalanced combinations of supply voltage, such as +12V and -5V or +5V and -15V. Low power dissipation (1.9mW with ±15V supplies) allows use in portable applications.

簡略化されたブロック図

MAX328、MAX329:標準動作回路 MAX328、MAX329:標準動作回路 Zoom icon

技術資料

サポートとトレーニング

ナレッジベースを検索して技術質問への回答を探す。

絞り込まれた検索

マキシムでは、お客様の技術的質問にお答えするため、アプリケーションエンジニアの専任チームも配置しています。 サポートセンター をご覧ください。