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CMOS Low Voltage

2.5 Ω Dual SPDT Switch

Data Sheet

ADG736

Rev. D

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FEATURES

1.8 V to 5.5 V single supply

Automotive temperature range: −40°C to +125°C

2.5 Ω (typical) on resistance

Low on resistance flatness

−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

Qualified for automotive applications

APPLICATIONS

USB 1.1 signal switching circuits

Cell phones

PDAs

Battery-powered systems

Communications systems

Sample-and-hold systems

Audio signal routing

Audio and video switching

Mechanical reed relay replacement

FUNCTIONAL BLOCK DIAGRAM

00046-001

SWITCHES SHOWN

FOR A LOGIC 1 INPUT

ADG736

S1A

S1B

IN1

S2B

IN2

S2A

Figure 1.

GENERAL DESCRIPTION

The ADG736 is a monolithic device comprising two independ-

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

These 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 ADG736 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, and

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

The ADG736 exhibits break-before-make switching action.

The ADG736 is available in a 10-lead MSOP package.

PRODUCT HIGHLIGHTS

1. 1.8 V to 5.5 V Single-Supply Operation. The ADG736

offers high performance, including low on resistance and

fast switching times. It is fully specified and guaranteed

with 3 V and 5 V supply rails.

2. Ver y Low R

(4.5 Ω Maximum at 5 V, 8 Ω Maximum at 3 V).

At a supply voltage of 1.8 V, R

is typically 35 Ω over the

temperature range.

3. Low On Resistance Flatness.

4. −3 dB Bandwidth > 200 MHz.

5. Low Power Dissipation. CMOS construction ensures low

power dissipation.

6. Fast t

OFF

7. Break-Before-Make Switching Action.

8. 10-Lead MSOP Package.

Summary of content (12 pages)

PAGE 1
CMOS Low Voltage 2.5 Ω Dual SPDT Switch ADG736 Data Sheet FEATURES FUNCTIONAL BLOCK DIAGRAM 1.8 V to 5.5 V single supply Automotive temperature range: −40°C to +125°C 2.5 Ω (typical) on resistance Low on resistance flatness −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.
PAGE 2
ADG736 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions..............................6 Applications ....................................................................................... 1 Typical Performance Characteristics ..............................................7 Functional Block Diagram ..............................................................
PAGE 3
Data Sheet ADG736 SPECIFICATIONS VDD = 5 V ± 10%, GND = 0 V. All specifications −40°C to +125°C, unless otherwise noted. Table 1. Parameter ANALOG SWITCH Analog Signal Range On Resistance (RON) 25°C 0 V to VDD 2.
PAGE 4
ADG736 Data Sheet VDD = 3 V ± 10%, GND = 0 V. All specifications −40°C to +125°C, unless otherwise noted. Table 2. B Version Parameter ANALOG SWITCH Analog Signal Range On Resistance (RON) On Resistance Match Between Channels (∆RON) 25°C −40°C to +85°C 5 5.5 −40°C to +125°C 0 V to VDD 8 12 0.4 2.5 0.4 2.5 0.
PAGE 5
Data Sheet ADG736 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 Automotive 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 Soldering Peak Temperature Time at Peak Temperature ESD 1 Rating −0.3 V to +6 V −0.
PAGE 6
ADG736 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS IN1 1 S1A 2 ADG736 10 D1 9 S1B 8 VDD TOP VIEW S2A 4 (Not to Scale) 7 S2B IN2 5 6 D2 00046-002 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 output. Ground (0 V) Reference. Source Terminal. May be an input or output. Logic Control Input. Drain Terminal.
PAGE 7
Data Sheet ADG736 TYPICAL PERFORMANCE CHARACTERISTICS 6.0 6.0 TA = 25°C 5.5 5.0 5.0 4.5 4.5 4.0 4.0 VDD = 3.0V 3.5 RON (Ω) VDD = 4.5V 3.0 2.5 2.0 3.5 +125°C +85°C 3.0 +25°C 2.5 2.0 1.5 1.5 VDD = 5.0V 1.0 00046-003 1.0 0.5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 –40°C 0.5 0 5.0 0 0.5 VD OR VS (DRAIN OR SOURCE VOLTAGE) (V) 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Figure 5. On Resistance as a Function of VD or VS for Different Temperatures VDD = 5 V 10m VDD = 3V 5.
PAGE 8
ADG736 Data Sheet 0 –30 VDD = 5V, 3V TA = 25°C –50 VDD = 5V TA = 25°C –60 –2 CROSSTALK (dB) ON RESPONSE (dB) –40 –4 –70 –80 –90 –100 100k 1M 10M FREQUENCY (Hz) –120 –130 10k 100M Figure 7. Bandwidth VDD = 5V, 3V TA = 25°C –60 –70 –80 –90 –100 –110 00046-008 OFF ISOLATION (dB) –50 –120 –130 10k 100k 1M 10M FREQUENCY (Hz) 100k 1M 10M FREQUENCY (Hz) Figure 9. Crosstalk vs. Frequency –30 –40 00046-009 –8 10k 00046-007 –110 100M Figure 8. Off Isolation vs. Frequency Rev.
PAGE 9
Data Sheet ADG736 TEST CIRCUITS IDS V1 IS (OFF) S A RON = V1/IDS ID (ON) VS VD Figure 10. On Resistance S NC D A VD Figure 12. On Leakage Figure 11. Off Leakage VDD 0.1F VDD VOUT D S VS CL 35pF RL IN 50% VIN 300 50% 90% 90% GND tON tOFF 00046-014 VOUT Figure 13. Switching Times VDD 0.1F VIN VOUT 300 50% VOUT CL 35pF RL 50% 90% 0V tD GND tD 00046-015 D SB VIN 50% VS SA VS 50% 0V VDD Figure 14. Break-Before-Make Time Delay, tD VDD 0.1F VDD VDD 0.
PAGE 10
ADG736 Data Sheet TERMINOLOGY tOFF Delay between applying the digital control input and the output switching off. See Figure 13. RON Ohmic resistance between Terminal D and Terminal S. ∆RON On resistance match between any two channels; that is, 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
Data Sheet ADG736 APPLICATIONS INFORMATION VDD V+ CH1 S1A CH2 S1B A=2 75 VOUT 250 75 IN1 ADG736 250 Figure 18. Using the ADG736 to Select Between Two Video Signals Rev.
PAGE 12
ADG736 Data Sheet OUTLINE DIMENSIONS 3.10 3.00 2.90 10 3.10 3.00 2.90 5.15 4.90 4.65 6 1 5 PIN 1 IDENTIFIER 0.50 BSC 0.95 0.85 0.75 15° MAX 1.10 MAX 0.30 0.15 6° 0° 0.23 0.13 0.70 0.55 0.40 COMPLIANT TO JEDEC STANDARDS MO-187-BA 091709-A 0.15 0.05 COPLANARITY 0.10 Figure 19.