Datasheet

ManualsBrandsANALOG DEVICES ManualsInterface ICsInterface IC - analogue switches TSSOP 16

Power-Off Protection ±5 V, +12 V, Quad

SPST Switches with 5 Ω On Resistance

ADG4612/ADG4613

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

FEATURES

Power-off protection

Switch guaranteed off with no power supplies present

Inputs are high impedance with no power

Switch turns off when input > V

+ V

Overvoltage protection up to 16 V

PSS robust

Negative signal capability passes signals down to −5.5 V

6.1 Ω maximum on resistance

1.4 Ω on-resistance flatness

±3 V to ±5.5 V dual supply

3 V to 12 V single supply

3 V logic compatible inputs

Rail-to-rail operation

16-lead TSSOP and 16-lead 3 mm × 3 mm LFCSP

APPLICATIONS

Hot swap applications

Data acquisition systems

Battery-powered systems

Automatic test equipment

Communication systems

Relay replacement

GENERAL DESCRIPTION

The ADG4612/ADG4613 contain four independent single-

pole/single-throw (SPST) switches. The ADG4612 switches are

turned on with Logic 1 on the appropriate control input. The

ADG4613 has two switches with digital control logic similar to

that of the ADG4612; the logic is inverted on the other two

switches. Each switch conducts equally well in both directions

when on, and each switch has an input signal range that extends

to the supplies. The ADG4613 exhibits break-before-make

switching action for use in multiplexer applications.

When no power supplies are present, the switch remains in the

off condition, and the switch inputs are high impedance inputs,

ensuring that no current flows, which can damage the switch or

downstream circuitry. This is very useful in applications where

analog signals may be present at the switch inputs before power

is applied or where the user has no control over the power supply

sequence.

In the off condition, signal levels up to 16 V are blocked. Also,

when the analog input signal levels exceed V

by V

, the switch

turns off.

FUNCTIONAL BLOCK DIAGRAM

SWITCHES SHOWN FOR A LOGIC 1 INPUT.

IN1

IN2

IN3

IN4

ADG4612

IN1

IN2

IN3

IN4

ADG4613

09005-001

Figure 1.

The low on resistance of these switches make them ideal

solutions for data acquisition and gain switching applications

where low on resistance and distortion is critical. The on-

resistance profile is very flat over the full analog input range

ensuring excellent linearity and low distortion when switching

audio signals.

PRODUCT HIGHLIGHTS

1. Power-Off Protection On Both S and D Pins.

2. PSS Robustness.

3. Overvoltage Protection up to 16 V.

4. 5.2 Ω On Resistance.

5. 16-Lead TSSOP and 3 mm × 3 mm LFCSP Packages.

Summary of content (24 pages)

PAGE 1
Power-Off Protection ±5 V, +12 V, Quad SPST Switches with 5 Ω On Resistance ADG4612/ADG4613 Power-off protection Switch guaranteed off with no power supplies present Inputs are high impedance with no power Switch turns off when input > VDD + VT Overvoltage protection up to 16 V PSS robust Negative signal capability passes signals down to −5.5 V 6.1 Ω maximum on resistance 1.4 Ω on-resistance flatness ±3 V to ±5.
PAGE 2
ADG4612/ADG4613 TABLE OF CONTENTS Features .............................................................................................. 1 Thermal Resistance .......................................................................9 Applications....................................................................................... 1 ESD Caution...................................................................................9 General Description ..........................................................
PAGE 3
ADG4612/ADG4613 SPECIFICATIONS 5 V DUAL SUPPLY VDD = +5 V ± 10%, VSS = −5 V ± 10%, GND = 0 V, unless otherwise noted. Table 1.
PAGE 4
ADG4612/ADG4613 Parameter Break-Before-Make Time Delay, tD (ADG4613 Only) Fault Response Time Fault Recovery Time Threshold Voltage, VT Charge Injection Off Isolation Channel-to-Channel Crosstalk Total Harmonic Distortion + Noise, THD + N Insertion Loss −3 dB Bandwidth CS (Off ) CD (Off ) CD (On), CS (On) POWER REQUIREMENTS Normal Mode IDD ISS Isolation Mode IDD ISS 1 25°C 20 −40°C to +85°C 295 1.2 1.8 225 −54 −71 0.13 Unit ns typ ns min ns typ μs typ V typ pC typ dB typ dB typ % typ −0.
PAGE 5
ADG4612/ADG4613 12 V SINGLE SUPPLY VDD = 12 V ± 10%, VSS = 0 V, GND = 0 V, unless otherwise noted. Table 2.
PAGE 6
ADG4612/ADG4613 Parameter Break-Before-Make Time Delay, tD (ADG4613 Only) Fault Response Time Fault Recovery Time Threshold Voltage, VT Charge Injection Off Isolation Channel-to-Channel Crosstalk Total Harmonic Distortion + Noise, THD + N 25°C 17 250 1.4 1.8 292 −56 −74 0.26 Unit ns typ ns min ns typ μs typ V typ pC typ dB typ dB typ % typ Insertion Loss −3 dB Bandwidth CS (Off ) CD (Off ) CD (On), CS (On) POWER REQUIREMENTS Normal Mode IDD −0.27 250 11.5 11.
PAGE 7
ADG4612/ADG4613 5 V SINGLE SUPPLY VDD = 5 V ± 10%, VSS = 0 V, GND = 0 V, unless otherwise noted. Table 3. Parameter ANALOG SWITCH Analog Signal Range On-Resistance (RON) On-Resistance Match Between Channels (∆RON) On-Resistance Flatness (RFLAT (ON)) LEAKAGE CURRENTS Normal Mode Source Off Leakage, IS (Off ) Drain Off Leakage, ID (Off ) Channel On Leakage, ID (On), IS (On) 25°C 12.5 14.7 0.15 0.5 6.2 8 ±0.8 ±3 ±0.8 ±3 ±2 ±5 −40°C to +85°C Unit Test Conditions/Comments −5.
PAGE 8
ADG4612/ADG4613 Parameter Channel-to-Channel Crosstalk Total Harmonic Distortion + Noise, THD + N Insertion Loss −3 dB Bandwidth CS (Off ) CD (Off ) CD (On), CS (On) POWER REQUIREMENTS Normal Mode IDD Isolation Mode IDD 1 25°C −71 0.85 −40°C to +85°C −0.5 293 Unit dB typ % typ 14 14 50 dB typ MHz typ pF typ pF typ pF typ 90 140 μA typ μA max 90 140 165 μA typ μA max 165 Test Conditions/Comments RL = 50 Ω, CL = 5 pF, f = 100 kHz; see Figure 29 RL = 110 Ω, f = 20 Hz to 20 kHz, VS = 3.
PAGE 9
ADG4612/ADG4613 ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 6.
PAGE 10
ADG4612/ADG4613 14 S2 VSS 4 13 VDD GND 5 12 NC GND 3 S4 6 11 S3 S4 4 D4 7 10 D3 IN4 8 9 IN3 NC = NO CONNECT VSS 2 12 S2 ADG4612/ ADG4613 11 VDD TOP VIEW (Not to Scale) 9 D4 5 TOP VIEW (Not to Scale) PIN 1 INDICATOR S1 1 09005-002 ADG4612/ ADG4613 10 NC S3 NOTES 1. EXPOSED PAD TIED TO SUBSTRATE, GND. 2. NC = NO CONNECT.
PAGE 11
ADG4612/ADG4613 TYPICAL PERFORMANCE CHARACTERISTICS 9 12 TA = 25°C 8 VDD = +3V VSS = –3V VDD = +3V VSS = –3V 10 TA = +105°C TA = +85°C ON RESISTANCE (Ω) ON RESISTANCE (Ω) 7 6 VDD = +4.5V VSS = –4.5V 5 4 3 VDD = +5V VSS = –5V 2 VDD = +5.5V VSS = –5.5V 8 6 TA = –40°C 4 TA = +25°C 2 –4 –2 0 2 4 6 VS OR VD VOLTAGE (V) 0 –6 09005-004 0 –6 –2 –1 0 1 2 3 6 TA = 25°C VDD = +12V VSS = 0V VDD = 4.
PAGE 12
100 800 0 600 VDD = +5V VSS = –5V VBIAS = 1V/4.5V –300 –400 ID, IS (ON) +, + IS (OFF) +, – ID, (OFF) – , + ID (OFF) +, – IS (OFF) – , + ID, IS (ON) – , – –600 20 40 60 TEMPERATURE (°C) 80 0 –200 –400 ID, IS (ON) +, + IS (OFF) +, – ID, (OFF) – , + ID (OFF) +, – IS (OFF) – , + ID, IS (ON) – , – –600 –800 –700 0 200 100 –1000 Figure 10. Leakage Currents as a Function of Temperature, 5 V Dual Supply 0 20 40 60 TEMPERATURE (°C) 80 100 09005-013 –200 –500 VBIAS = 1V/4.
PAGE 13
ADG4612/ADG4613 1.0 140 LOAD = 110Ω TA = 25°C 0.9 120 tON (+5V) tOFF (±5V) 100 0.7 THD + N (%) TIME (ns) VDD = 5V, VSS = 0V, VS = 3.5V p-p 0.8 tOFF (+5V) 80 60 tOFF (±12V) tON (±5V) 0.6 0.5 0.4 VDD = 12V, VSS = 0V, VS = 5V rms 0.3 40 tON (+12V) 0.2 20 –20 0 20 40 60 TEMPERATURE (°C) 80 100 0 09005-017 0 –40 0 5k Figure 16. tON/tOFF Times vs.
PAGE 14
ADG4612/ADG4613 TEST CIRCUITS IDS V1 VS Dx 09005-020 Sx RON = V1/IDS Figure 22. On Resistance ID (OFF) Sx A Dx A VS 09005-021 IS (OFF) VD Figure 23. Off Leakage ID (ON) Dx NC = NO CONNECT A VD 09005-022 Sx NC Figure 24. On Leakage VDD VSS 0.1µF 0.1µF VSS Sx VOUT Dx VIN VS RL 300Ω INx CL 35pF ADG4612 50% 50% 90% VOUT 90% GND tOFF tON 09005-023 VDD Figure 25.
PAGE 15
ADG4612/ADG4613 VS VSS VDD VSS Sx VOUT Dx VIN ADG4612 ON OFF CL 1nF INx VOUT QINJ = CL × ∆VOUT GND ∆VOUT 09005-025 RS VDD Figure 27. Charge Injection VDD VSS 0.1µF VDD NETWORK ANALYZER VSS Sx 0.1µF VDD 50Ω INx VS VS Dx RL 50Ω GND VOUT VIN RL 50Ω GND OFF ISOLATION = 20 log VOUT VS 09005-026 Dx VIN INSERTION LOSS = 20 log VDD VOUT WITH SWITCH VOUT WITHOUT SWITCH VSS 0.1µF 0.1µF 0.
PAGE 16
ADG4612/ADG4613 TERMINOLOGY tOFF tOFF represents the delay between applying the digital control input and the output switching off. IDD IDD represents the positive supply current. ISS ISS represents the negative supply current. tD tD represents the off time measured between the 80% point of both switches when switching from one address state to another. VD, VS VD and VS represent the analog voltage on Terminal D and Terminal S, respectively.
PAGE 17
ADG4612/ADG4613 THEORY OF OPERATION The ADG4612/ADG4613 contain four independent singlepole/single-throw (SPST) switches. Each switch is rail-to-rail and conducts equally well in both directions when on. The ADG4612/ADG4613 has two modes of operation: normal mode and isolation mode. The operation modes are made possible by a special detection circuitry that monitors the voltage levels at the source or drain terminals and VDD relative to ground.
PAGE 18
ADG4612/ADG4613 Positive Fault Condition BIPOLAR OPERATION AND SINGLE-SUPPLY OPERATION The ADG4612/ADG4613 have a maximum operational range from VDD to VSS of 16 V. The maximum signal range from source to drain, VS to VD , is also 16 V. During operation of the device, the signal range can exceed the power supply rails, but the voltage between the most negative voltage on the device (VS,VD or VSS) should be within 16 V of the most positive voltage (VS, VD, INx, or VDD).
PAGE 19
ADG4612/ADG4613 APPLICATIONS INFORMATION There are many application scenarios that benefit from the functionality offered on the ADG4612/ADG4613 switches. The ADG4612/ADG4613 allow negative signals, down to −5.5 V to be passed without a negative supply. This can be very useful in applications that need to pass negative signals but do not have a negative supply available. This cannot be done with conventional CMOS switches because ESD protection diodes turn on and clamp the signals.
PAGE 20
ADG4612/ADG4613 Power Supply Sequencing Another benefit of the ADG4612/ADG4613 is it eliminates concerns about the power supply sequence. The part can be powered up in any sequence without damage. For devices with conventional CMOS switches, it is recommend that power supplies are powered up before analog or digital inputs are present. The ADG4612/ADG4613 do not have any power supply sequencing requirements, thereby making them a very robust design.
PAGE 21
ADG4612/ADG4613 OUTLINE DIMENSIONS 5.10 5.00 4.90 16 9 4.50 4.40 4.30 6.40 BSC 1 8 PIN 1 1.20 MAX 0.15 0.05 0.20 0.09 0.30 0.19 0.65 BSC COPLANARITY 0.10 0.75 0.60 0.45 8° 0° SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-153-AB Figure 35. 16-Lead Thin Shrink Small Outline Package [TSSOP] (RU-16) Dimensions shown in millimeters 0.30 0.23 0.18 0.50 BSC 13 PIN 1 INDICATOR 16 1 12 EXPOSED PAD 1.75 1.60 SQ 1.45 9 TOP VIEW 0.80 0.75 0.70 SEATING PLANE 0.50 0.40 0.30 4 8 5 0.
PAGE 22
ADG4612/ADG4613 ORDERING GUIDE Model 1 ADG4612BRUZ ADG4612BRUZ-REEL7 ADG4612BCPZ-REEL7 EVAL-ADG4612EBZ ADG4613BRUZ ADG4613BRUZ-REEL7 ADG4613BCPZ-REEL7 1 Temperature Range −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C Package Description Thin Shrink Small Outline Package [TSSOP] Thin Shrink Small Outline Package [TSSOP] Lead Frame Chip Scale Package [LFCSP_WQ] Evaluation Board Thin Shrink Small Outline Package [TSSOP] Thin Shrink Small Outline Package [TSSO
PAGE 23
ADG4612/ADG4613 NOTES Rev.