Model No: MAX395EAG+

Analog Devices Inc./Maxim Integrated MAX395EAG+

Manufacturer: Analog Devices Inc./Maxim Integrated
SEMICON NO.: MAX395EAG+
Package: 24-SSOP
Stock: In stock
Description: SPST Analog Switch 8 Circuit 1:1 100Ohm
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 Mfr       Analog Devices Inc./Maxim Integrated
 Device Type      Serially Controlled, 8-Channel SPST Analog Switch
 Number of Switches     8
 Switch Circuit     SPST – NO (Normally Open)
 Number of Circuits     8
 Mux/Demux Configuration     1:1
 On-State Resistance (RON)  100 Ω (Max), 60 Ω (Typ)
 Charge Injection     2 pC
 Off Leakage Current     0.1 nA (Max)
 Crosstalk     –90 dB @ 100 kHz
 Supply Voltage   Single: 2.7 V to 16 V, Dual: ±2.7 V to ±8 V
 Supply Current  Max: 20 µA 
 Operating Temperature    –40°C to +85°C
 Package 24-SSOP
 Mounting Type
 Surface Mount
 Compliance    
 RoHS Compliant
 
MAX395EAG+ — ADI Serially Controlled, Low-Voltage 8-Channel SPST Analog Switch
The MAX395EAG+ from Analog Devices (Maxim Integrated) is a serially controlled, low-voltage, 8-channel single-pole/single-throw (SPST) CMOS analog switch in a compact 24-pin SSOP package, offering eight separately controlled switch channels that conduct equally well in either direction with rail-to-rail signal handling. On-resistance is specified at a maximum of 100 ohms with ±5 V supplies, matched between switches to 5 ohms max and flat to 10 ohms max over the full signal range, while off-leakage current is only 0.1 nA at +25 °C (5 nA at +85 °C). The device operates from dual supplies of ±2.7 V to ±8 V or a single supply of +2.7 V to +16 V, and features an SPI/QSPI/Microwire-compatible serial interface with daisy-chain capability via the DOUT output, an asynchronous active-low RESET input, >2 kV ESD protection per Method 3015.7, and pin compatibility with the industry-standard MAX335. 
Highlights / Key Features & Applications
● Eight independently controlled SPST switches on a single monolithic CMOS chip, each conducting bidirectionally with rail-to-rail analog signal capability up to 30 mA continuous current.
● Low 100-ohm maximum on-resistance with ±5 V supplies, channel-to-channel matching of 5 ohms max, and flatness of 10 ohms max over the entire analog signal range for precision signal routing.
● Wide dual-supply range of ±2.7 V to ±8 V or single supply of +2.7 V to +16 V, accommodating 3 V, 5 V, ±5 V, and up to ±8 V analog systems.
● SPI/QSPI/Microwire-compatible 3-wire serial interface (DIN, SCLK, CS) with TTL/CMOS-compatible 0.8 V/2.4 V logic thresholds, requiring only three microcontroller I/O pins to control eight switches.
● Daisy-chain capability via the DOUT shift-register output, enabling multiple MAX395s to be cascaded serially for 16-, 24-, or more channel switching networks.
● Fast 400 ns maximum turn-on and turn-off times with break-before-make switching action and only 2 pC charge injection for minimal transients.
● Asynchronous active-low RESET input that clears all switch states, plus power-on reset that initializes all switches to the off condition for safe system startup.
The MAX395EAG+ is engineered for multi-channel analog signal routing under serial microprocessor control across data acquisition and industrial systems. Typical applications include serial data-acquisition systems where eight sensor or signal inputs must be multiplexed to a single ADC, avionics signal routing and audio switching matrices, industrial and process-control systems routing analog signals under PLC control, automated test equipment (ATE) switching stimulus and measurement paths, networking equipment signal reconfiguration, and precision gain-switching or filter-selection networks where eight independent SPST channels minimize board area and controller I/O count.
Frequently Asked Questions
Q: How does the MAX395EAG+ differ from the MAX395EWG+? The EAG+ uses the compact 24-SSOP package (5.38 mm wide, 58 per tube), while the EWG+ uses the wider 24-SOIC package (7.6 mm wide, 2,500 per reel); electrical specifications are identical for both E-grade devices.
Q: Can multiple MAX395s be cascaded? Yes — the serial shift register's DOUT output feeds directly into the DIN of the next device, allowing indefinite daisy-chaining to build 16-, 24-, or 32-channel switching networks controlled from a single 3-wire SPI bus.
Alternative / Replacement SPST switch Models
● MAX395CWG+T — Commercial-grade (0 °C to +70 °C) version in wide SOIC-24 tape-and-reel, offering a lower-cost option for indoor applications.
● ADG714BRUZ — ADI's modern octal SPST switch successor with 2.5-ohm on-resistance, 2.7 V to 5.5 V single supply, and 30 MHz serial clock rate in TSSOP-24.
● ADG715BRU — I2C-interface version of the ADG714, replacing the SPI bus with a 2-wire serial interface for pin-constrained controllers.
● MAX335 — Pin-compatible legacy octal SPST switch operating from ±4.5 V to ±20 V supplies with 150-ohm on-resistance for high-voltage analog systems.