ADG467BRS Analog Devices Inc, ADG467BRS Datasheet
ADG467BRS
Specifications of ADG467BRS
Available stocks
Related parts for ADG467BRS
ADG467BRS Summary of contents
Page 1
FEATURES Fault and overvoltage protection up to ±40 V Signal paths open circuit with power off Signal path resistance of R with power supply maximum ratings Low on resistance: 62 Ω typical ±1 nA maximum path ...
Page 2
ADG467 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Dual Supply ................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin ...
Page 3
SPECIFICATIONS DUAL SUPPLY −15 V, GND = 0 V, unless otherwise noted Table 1. Parameter FAULT PROTECTED CHANNEL Fault-Free Analog Signal Range Flatness ON R Match between Channels ON ...
Page 4
ADG467 ABSOLUTE MAXIMUM RATINGS T = +25°C, unless otherwise noted. A Table 2. Parameter Analog Input Overvoltage with Power Analog Input Overvoltage with ...
Page 5
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ADG467 TOP VIEW (Not to Scale ...
Page 6
ADG467 TYPICAL PERFORMANCE CHARACTERISTICS 100 ±16. ±15V ±13. ±20V ...
Page 7
TO +10V INPUT 20V 4.5V CLAMP OUTPUT CLAMP CH1 5.00V CH2 5.00V M 100µs A CH1 Figure 10. Overvoltage Ramp 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 V ...
Page 8
ADG467 TEST CIRCUITS V1 Figure 16. On Resistance CONNECT Figure 17. On Leakage V DD 0.1µF NETWORK ANALYZER ...
Page 9
CIRCUIT INFORMATION Figure 21 shows a simplified schematic of a channel protector circuit. The circuit is made up of four MOS transistors—two NMOS and two PMOS. One of the PMOS devices does not lie directly in the signal path but ...
Page 10
ADG467 When a negative overvoltage is applied to the channel protector circuit, the PMOS transistor enters a saturated mode of operation as the drain voltage exceeds V − V (see Figure 24 the SS TP case of the ...
Page 11
TRENCH ISOLATION The MOS devices that make up the channel protector are isolated from each other by an oxide layer (trench) (see Figure 26). When the NMOS and PMOS devices are not electrically isolated from each other, parasitic junctions between ...
Page 12
ADG467 APPLICATIONS INFORMATION OVERVOLTAGE AND POWER SUPPLY SEQUENCING PROTECTION The ADG467 is ideal for use in applications where input overvol- tage protection is required and correct power supply sequencing cannot always be guaranteed. The overvoltage protection ensures that the output ...
Page 13
... CMOS devices when the power supplies are off. The ideal solution is to use a channel protector in conjunction with a TVS to provide the optimal leakage current specification and circuit protection. Figure 28 shows an input protection scheme that uses both a TVS and a channel protector. The TVS is selected with a reverse ...
Page 14
ADG467 OUTLINE DIMENSIONS 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 2.00 MAX 0.05 MIN COPLANARITY 0.10 11.75 (0.4626) 11.35 (0.4469 7.60 (0.2992) 7.40 (0.2913) 1 10.65 (0.4193) 9 10.00 (0.3937) 2.65 (0.1043) 2.35 (0.0925) SEATING 0.51 (0.0201) 1.27 0.33 ...
Page 15
... ADG467BRS −40°C to +85°C ADG467BRS-REEL −40°C to +85°C ADG467BRSZ −40°C to +85°C ADG467BRSZ-REEL −40°C to +85° RoHS Compliant Part. Package Description 18-Lead Standard Small Outline Package [SOIC_W] 18-Lead Standard Small Outline Package [SOIC_W] ...
Page 16
ADG467 NOTES ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08191-0-2/11(B) Rev Page ...