Datasheet

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CMOS Low Voltage

2.5 Ω Dual SPDT Switch

ADG736L

Rev. 0

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FEATURES

1.8 V to 5.5 V single supply

2.5 Ω (typical) on resistance

Low on-resistance flatness

Guaranteed leakage performance over −40°C to +85°C

−3 dB bandwidth > 200 MHz

Rail-to-rail operation

10-lead MSOP package

Fast switching times

16 ns

OFF

8 ns

Typical power consumption (<0.01 μW)

TTL/CMOS compatible

APPLICATIONS

USB 1.1 signal switching circuits

Cell phones

PDAs

Battery-powered systems

Communication systems

Sample-and-hold systems

Audio signal routing

Audio and video switching

Mechanical reed relay replacement

GENERAL DESCRIPTION

The ADG736L is a monolithic device comprising two independ-

ently selectable CMOS single pole, double throw (SPDT) switches.

The switches are designed using a submicron process that

provides low power dissipation, yet gives high switching speed,

low on resistance, low leakage currents, and wide input signal

bandwidth.

The on resistance profile is very flat over the full analog signal

range. This ensures excellent linearity and low distortion when

switching audio signals. Fast switching speed also makes the

part suitable for video signal switching.

The ADG736L operates from a single 1.8 V to 5.5 V supply,

making it ideally suited to portable and battery-powered

instruments.

Each switch conducts equally well in both directions when on;

each has an input signal range that extends to the power supplies.

The ADG736L exhibits break-before-make switching action.

The ADG736L is available in a 10-lead MSOP.

FUNCTIONAL BLOCK DIAGRAM

05485-001

IN1

IN2

ADG736L

SWITCHES SHOWN

FOR A LOGIC 1 INPUT

Figure 1.

PRODUCT HIGHLIGHTS

1. 1.8 V to 5.5 V Single-Supply Operation.

2. Guaranteed Leakage Performance.

3. Ver y Low R

(4.5 Ω Maximum at 5 V,

8 Ω Maximum at 3 V).

4. Low On Resistance Flatness.

5. −3 dB Bandwidth > 200 MHz.

6. Low Power Dissipation.

Summary of content (12 pages)

PAGE 1
CMOS Low Voltage 2.5 Ω Dual SPDT Switch ADG736L FEATURES FUNCTIONAL BLOCK DIAGRAM 1.8 V to 5.5 V single supply 2.5 Ω (typical) on resistance Low on-resistance flatness Guaranteed leakage performance over −40°C to +85°C −3 dB bandwidth > 200 MHz Rail-to-rail operation 10-lead MSOP package Fast switching times tON 16 ns tOFF 8 ns Typical power consumption (<0.01 μW) TTL/CMOS compatible ADG736L S1A 2 S1B 9 10 D1 6 D2 IN1 1 S2A 4 S2B 7 SWITCHES SHOWN FOR A LOGIC 1 INPUT 05485-001 IN2 5 Figure 1.
PAGE 2
ADG736L TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions..............................6 Applications....................................................................................... 1 Typical Performance Characteristics ..............................................7 General Description ......................................................................... 1 Test Circuits.....
PAGE 3
ADG736L SPECIFICATIONS VDD = 5 V ± 10%, GND = 0 V; all specifications −40°C to +85°C, unless otherwise noted. Table 1. Parameter ANALOG SWITCH Analog Signal Range On Resistance (RON) On Resistance Match Between Channels (∆RON) B Version 1 −40°C to 25°C +85°C 0 V to VDD 2.5 4 0.1 4.5 0.4 On Resistance Flatness (RFLAT (ON)) 0.5 1.2 Unit V Ω typ Ω max Ω typ Ω max Ω typ Ω max LEAKAGE CURRENTS Source Off Leakage IS (OFF) Channel On Leakage ID, IS (ON) 2.4 0.
PAGE 4
ADG736L VDD = 3 V ± 10%, GND = 0 V. All specifications −40°C to +85°C, unless otherwise noted. Table 2. Parameter ANALOG SWITCH Analog Signal Range On Resistance (RON) On Resistance Match Between Channels (∆RON) 25°C 5 B Version 1 −40°C to +85°C 0 V to VDD 5.5 8 0.1 0.4 2.
PAGE 5
ADG736L ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. Table 3. Parameter VDD to GND Analog, Digital Inputs 1 Continuous Current, S or D Peak Current, S or D Operating Temperature Range Industrial (B Version) Storage Temperature Range Junction Temperature MSOP Package, Power Dissipation θJA Thermal Impedance Lead Temperature (Soldering, 10 sec) IR Reflow (Peak Temperature, <20 sec) Lead-Free Reflow Peak Temperature Time at Peak Temperature ESD 1 Rating −0.3 V to +6 V −0.3 V to VDD + 0.
PAGE 6
ADG736L PIN CONFIGURATION AND FUNCTION DESCRIPTIONS IN1 1 10 D1 S1A 2 9 S1B ADG736L VDD TOP VIEW S2A 4 (Not to Scale) 7 S2B IN2 5 8 6 D2 05485-002 GND 3 Figure 2. Pin Configuration Table 4. Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 Mnemonic IN1 S1A GND S2A IN2 D2 S2B VDD S1B D1 Description Logic Control Input. Source Terminal. May be an input or an output. Ground (0 V) Reference. Source Terminal. May be an input or an output. Logic Control Input. Drain Terminal.
PAGE 7
ADG736L TYPICAL PERFORMANCE CHARACTERISTICS 6.0 TA = 25°C 10m 5.5 VDD = 2.7V 5.0 1m VDD = 5V TA = 25°C 4.5 100μ VDD = 3.0V VDD = 4.5V 3.0 2.5 2.0 1.5 05485-003 0.5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VD OR VS (DRAIN OR SOURCE VOLTAGE (V)) 1μ 100n VDD = 5.0V 1.0 10μ 10n 5.0 05485-006 3.5 ISUPPLY (A) RON (Ω) 4.0 1n 100 Figure 3. On Resistance as a Function of VD (VS) Single Supplies 1k 10k 100k FREQUENCY (Hz) 1M 10M Figure 6. Supply Current vs.
PAGE 8
ADG736L –30 –40 VDD = 5V, 3V TA = 25°C –50 –70 –80 –90 –100 –110 05485-009 CROSSTALK (dB) –60 –120 –130 10k 100k 1M 10M FREQUENCY (Hz) 100M Figure 9. Crosstalk vs. Frequency Rev.
PAGE 9
ADG736L TEST CIRCUITS IDS V1 RON = V1/IDS D VS VD Figure 10. On Resistance S NC ID (ON) D A VD Figure 11. Off Leakage 05485-013 S A 05485-012 VS IS (OFF) D 05485-011 S Figure 12. On Leakage VDD 0.1μF VIN VDD S VS 50% VOUT D RL 300Ω IN 50% VS 90% 90% VOUT CL 35pF tON tOFF 05485-014 GND Figure 13. Switching Times VDD 0.1μF VS VDD SA VIN VOUT D SB RL 300Ω 50% 50% 50% 90% 0V tD tD GND 05485-015 VIN VOUT CL 35pF 50% 0V VS Figure 14.
PAGE 10
ADG736L TERMINOLOGY tOFF Delay between applying the digital control input and the output switching off. RON Ohmic resistance between D and S. ΔRON On resistance match between any two channels, such as RON maximum − RON minimum. RFLAT (ON) Flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the specified analog signal range. IS (OFF) Source leakage current with the switch off.
PAGE 11
ADG736L APPLICATIONS INFORMATION VDD V+ CH1 S1A CH2 S1B A=2 75Ω VOUT 250Ω 75Ω IN1 ADG736L 250Ω Figure 18. Using the ADG736L to Select Between Two Video Signals Rev.
PAGE 12
ADG736L OUTLINE DIMENSIONS 3.10 3.00 2.90 10 3.10 3.00 2.90 1 6 5.15 4.90 4.65 5 PIN 1 0.50 BSC 0.95 0.85 0.75 1.10 MAX 0.15 0.05 0.33 0.17 SEATING PLANE 0.23 0.08 8° 0° 0.80 0.60 0.40 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-BA Figure 19.