Home > Integrated Circuits ICs > Analog Linear ICs > ADG508AKRZ

ADG508AKRZ

8-CH Analog Mux, +/-15V, 280Ohm RON, SOIC-16

3456

Effective Inventory

Go to Inquiry

Image for reference only

Manufacturer Part：

ADG508AKRZ

Package：

SOIC-16 (9.9 x 3.9 x 1.5 mm)

Brand：

Product Categories：

Analog Linear ICs, Integrated Circuits ICs

Other recommendations you may be interested in.

SII9396SCNUC-BAR

IS43TR16256BL-125KBLI

Description

Product Overview

The ADG508AKRZ from Analog Devices is an 8-channel high-voltage CMOS analog multiplexer with +/-15V supply, 280-ohm on-resistance, and low leakage in a SOIC-16 package.

Key Specifications

Type	8-Channel Analog Multiplexer
Channels	8 (single-ended) to 1
Supply Voltage	+/-15 V (dual supply)
On-Resistance	280 ohm (typical) @ +/-15V
On-Resistance Flatness	40 ohm (typical)
Switching Time	200 ns tON, 150 ns tOFF
Leakage Current	0.1 nA (typical @ 25C)
Charge Injection	10 pC (typical)
Analog Signal Range	+/-15 V
Package	SOIC-16
Operating Temperature	-40C to +85C

Features

8-channel single-ended multiplexer
+/-15V dual supply operation
280 ohm low on-resistance
0.1 nA ultra-low leakage current
200 ns switching time
Break-before-make switching
3-bit binary address selection

Applications

Precision data acquisition systems
Industrial process control
Medical instrumentation
Automatic test equipment

Product Introduction:ADG508AKRZ Product Introduction

The ADG508AKRZ from Analog Devices is an 8-channel high-voltage CMOS analog multiplexer that switches one of eight inputs to a common output based on a 3-bit binary address. The device operates from +/-15V dual supplies, providing an analog signal range of +/-15V for industrial and instrumentation applications. The 280-ohm typical on-resistance and 40-ohm on-resistance flatness minimize signal distortion. The 0.1 nA leakage current at 25C preserves signal integrity in high-impedance circuits. The 200 ns switching time supports moderate-speed scanning applications. The break-before-make switching prevents momentary short-circuiting between channels. The EN pin enables or disables all channels simultaneously. The ADG508A is the 8-channel single-ended version; the ADG509A is the 4-channel differential version in the same SOIC-16 package.

Working Principle:ADG508AKRZ Working Principle

The ADG508AKRZ uses a DMOS (double-diffused MOS) switching structure optimized for high-voltage analog signal handling. Each switch consists of an N-channel and P-channel MOSFET in parallel (transmission gate configuration), which provides a relatively constant on-resistance across the full analog signal range. The 3-bit address input (A0, A1, A2) is decoded by an internal logic circuit that drives the gate of the selected switch pair. The EN pin, when LOW, opens all switches regardless of the address. The break-before-make timing is ensured by an internal delay that opens the currently closed switch before closing the newly selected switch, preventing channel-to-channel crosstalk and momentary shorts. The +/-15V supplies bias the internal level shifters that translate the TTL/CMOS-compatible address and enable logic levels to the gate voltages required to switch the +/-15V analog signals. The 0.1 nA leakage is achieved through careful layout and junction isolation of the switch structures.

Pin Description:ADG508AKRZ Pin Definition and Functions

Pin	Name	Type	Function
1	S1	Analog	Channel 1 source input
2	S2	Analog	Channel 2 source input
3	S3	Analog	Channel 3 source input
4	S4	Analog	Channel 4 source input
5	EN	Digital	Enable (active HIGH)
6	A0	Digital	Address bit 0
7	VSS	Power	Negative supply (-15V)
8	GND	Power	Digital ground
9	D	Analog	Common drain output
10	S8	Analog	Channel 8 source input
11	S7	Analog	Channel 7 source input
12	S6	Analog	Channel 6 source input
13	S5	Analog	Channel 5 source input
14	A1	Digital	Address bit 1
15	A2	Digital	Address bit 2
16	VDD	Power	Positive supply (+15V)

Application Scenarios:In which products and applications isADG508AKRZ used

8-channel data acquisition with +/-10V sensor inputs scanned at 200ns per channel
Precision strain gauge multiplexing with 0.1nA leakage preserving bridge accuracy
ATE pin multiplexer for +/-15V DUT signal routing
Medical ECG lead selector with 8 inputs and low leakage

Alternative Models:What chips are recommended as replacements for ADG508AKRZ

Manufacturer	Part Number	Package	Notes
ADI	ADG509AKRZ	SOIC-16	4-channel differential version
Maxim	DG508ACJE	SOIC-16	Pin-compatible equivalent
Vishay	DG508ACWE	SOIC-16	Pin-compatible equivalent
ADI	ADG1408YRUZ	TSSOP-16	iCMOS version, lower RON
Renesas	DG508ACWE	SOIC-16	Pin-compatible equivalent