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ADG1208YRUZ-REEL7

8-channel ±15V CMOS analog multiplexer, <1pC charge injection, 120R Ron, TSSOP-16

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Manufacturer Part：

ADG1208YRUZ-REEL7

Package：

16-TSSOP (5.00 x 4.40 mm)

Brand：

Product Categories：

Analog Linear ICs, Integrated Circuits ICs

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Description

Product Overview

The ADG1208YRUZ-REEL7 is an Analog Devices low capacitance, 8-channel iCMOS multiplexer with ±15 V/+12 V supply capability. It features less than 1 pC charge injection over the full signal range, 1 pF off capacitance, 120 Ω on resistance, and rail-to-rail operation. The device is packaged in a 16-lead TSSOP and operates from -40°C to +85°C.

Key Specifications

Channels	8 single-ended
On Resistance	120 Ω
Charge Injection	<1 pC over full signal range
Off Capacitance	1 pF
Supply Range	±15 V / +12 V (33 V max)
Package	16-Lead TSSOP

Features

<1 pC charge injection over full signal range
1 pF off capacitance
120 Ω on resistance
Fully specified at ±15 V/+12 V
3 V logic compatible inputs
Rail-to-rail operation
Break-before-make switching
Typical power consumption < 0.03 µW

Applications

Data acquisition systems
Automatic test equipment
Audio and video routing
Sample-and-hold systems

Product Introduction:ADG1208YRUZ-REEL7 Product Introduction

The Analog Devices ADG1208YRUZ-REEL7 is an 8-channel single-ended CMOS analog multiplexer built on the iCMOS (industrial CMOS) process, combining high-voltage capability with ultra-low charge injection. The device switches one of eight inputs to a common output as determined by 3-bit binary address lines A0, A1, and A2. The <1 pC charge injection over the full signal range is the defining feature—critical in data acquisition and sample-and-hold systems where charge injection introduces voltage errors that degrade measurement accuracy. The 120 ohm on-resistance and 2 ohm on-resistance flatness maintain signal integrity with minimal voltage drop and distortion. The device operates from dual supplies up to ±15V or single supply +12V, with 3V logic-compatible inputs enabling direct interface to low-voltage microcontrollers. Break-before-make switching action prevents momentary channel shorting during transitions. The iCMOS process enables 33V operation with dramatically lower power consumption (<0.03 uW typical) compared to conventional high-voltage CMOS, making the ADG1208 ideal for portable and battery-powered instruments.

Working Principle:ADG1208YRUZ-REEL7 Working Principle

The ADG1208 uses a 3-bit binary address (A0, A1, A2) to select one of eight input channels (S1-S8) and connect it to the common output (D). An active-low enable (EN) input disables all channels when deasserted, placing the device in a high-impedance state. Each switch channel conducts equally well in both directions with rail-to-rail signal handling. The iCMOS process achieves ultra-low charge injection through carefully balanced internal charge compensation circuits—when a switch transitions, the parasitic gate charge coupled to the signal path is minimized to <1 pC across the entire ±15V signal range. Break-before-make timing ensures that the currently selected channel is disconnected before the new channel is connected, preventing momentary short circuits between input sources. The on-resistance of 120 ohms remains relatively flat (2 ohm variation) across the signal range, minimizing gain error in precision measurement systems.

Pin Description:ADG1208YRUZ-REEL7 Pin Definition and Functions

Pin	Mnemonic	Description
1	EN	Enable input (active low)
2-4	A0-A2	Address inputs
5-8,10-13	S1-S8	Analog input channels
9	GND	Ground
14	D	Drain (common output)
15	VSS	Negative supply (-15V max)
16	VDD	Positive supply (+15V max)

Application Scenarios:In which products and applications isADG1208YRUZ-REEL7 used

Precision data acquisition system with 16-channel differential scanning using two ADG1208 devices, <1pC charge injection preserving 24-bit ADC accuracy
Medical EEG/ECG channel selection where ultra-low charge injection prevents stimulus artifacts in patient-connected electrodes
Battery-powered field instrument with <0.03uW mux power consumption extending operating life
Automatic test equipment (ATE) pin electronics with ±15V signal range and 3V logic control

Alternative Models:What chips are recommended as replacements for ADG1208YRUZ-REEL7

Model	Manufacturer	Key Difference
ADG1209YRUZ	ADI	4-channel differential version
ADG1206BRUZ	ADI	16-channel mux, same iCMOS family
DG408DY	Vishay	8-ch mux, higher Ron (80R), higher charge injection
MUX36S08	TI	8-ch, 36V, very low leakage, lower Ron