Data Sheet ADG7421FSPECIFICATIONSTable 5.Parameter+25°C−40°C to +85°C−40°C to +125°CUnitTest Conditions/Comments 6.7 6.8 6.8 µs max tOFF 130 ns typ RL = 300 Ω, CL = 35 pF, VS = 1.5 V 170 170 170 ns max tD 4.9 µs typ RL = 300 Ω, CL = 35 pF, VS = 1.5 V 4 µs min tRESPONSE Positive 1.3 µs typ RL = 1 kΩ, CL = 5 pF 1.5 1.6 1.7 µs max Negative 2 µs typ RL = 1 kΩ, CL = 5 pF 2.4 2.6 2.7 µs max tRECOVERY 7.4 µs typ RL = 1 kΩ, CL = 5 pF 9.5 9.9 10.1 µs max tDIGRESP 500 ns typ RPULLUP = 1 kΩ, CL = 10 pF, VPULL_UP = 2.5 V 550 550 600 ns max tDIGREC 800 ns typ RPULLUP = 1 kΩ, CL = 10 pF, VPULL_UP = 2.5 V 1.0 1.0 1.0 µs max QINJ −50 pC typ VS = 0 V, RS = 0 Ω, CL = 1 nF Off Isolation −70 dB typ RL = 50 Ω, CL = 5 pF, f = 1 MHz THD + N −101 dB typ RL = 10 kΩ, VS = 3 V p-p, f = 20 Hz to 20 kHz 0.009 % typ THD −133 dB typ RL = 10 kΩ, VS = 3 V p-p, f =1 kHz −131 dB typ RL = 10 kΩ, VS = 3 V p-p, f = 20 kHz −114 dB typ RL = 10 kΩ, VS = 3 V p-p, f = 100 kHz −3 dB Bandwidth 590 MHz typ RL = 50 Ω, CL = 5 pF Insertion Loss −0.92 dB typ RL = 50 Ω, CL = 5 pF, f = 1 MHz Channel to Channel Crosstalk −68 dB typ RL = 50 Ω, CL = 5 pF, f = 1 MHz CS (Off) 11 pF typ VS = 0 V, f = 1 MHz CD (Off) 11 pF typ VS = 0 V, f = 1 MHz CD (On), CS (On) 13 pF typ VS = 0 V, f = 1 MHz CSFLAT (On), CDFLAT (On) 1.2 pF typ VS = −2.15 V to +1.9 V, f = 1 MHz CMATCH (On) 0.2 pF typ VS = −2.15 V to +1.9 V, f = 1 MHz POWER REQUIREMENTS VDD = 2.75 V, VSS = −2.75 V, GND = 0 V, digital inputs = GND or VDD Normal Mode IDD 580 µA typ 850 850 A max IGND 480 µA typ 700 700 µA max ISS 100 µA typ 150 150 µA max Fault Mode VS = ±60 V IDD 630 µA typ 850 850 A max IGND 405 µA typ 600 600 µA max ISS 210 µA typ 290 290 µA max analog.comRev. 0 | 10 of 30 Document Outline Features Applications Companion Products Functional Block Diagram General Description Product Highlights Specifications 5 V Single Supply 3 V Single Supply 1.8 V Single Supply ±2.5 V Dual Supply Continuous Current per Channel, Sx or Dx, Two Channels On Absolute Maximum Ratings Thermal Resistance Electrostatic Discharge (ESD) Ratings ESD Ratings for ADG7421F ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuits Terminology IDD ISS VD, VS RON RFLAT (ON) IS (Off) ID (Off) ID (On), IS (On) VINL VINH IINL, IINH CD (Off) CS (Off) CD (On), CS (On) CIN tON tOFF tDIGRESP tDIGREC tRESPONSE tRECOVERY Off Isolation Charge Injection −3 dB Bandwidth On Response Insertion Loss THD + N AC Power Supply Rejection Ratio (AC PSRR) VT Theory of Operation Switch Architecture ESD Performance Trench Isolation Overvoltage Fault Protection Power-On Protection Power-Off Protection Overvoltage Interrupt Flag Applications Information Power Supply Rails Power Supply Recommendations Power Supply Sequencing Protection Signal Range Intelligent Fault Detection Short Duration Fault Current Thermocouple Input Protection RTD Input Protection Switches in a Known State High Voltage Suppression Outline Dimensions Ordering Guide