Specification	ADUM1253ASA+

Channel Type	Bidirectional, Unidirectional
Common Mode Transient Immunity (Min) [Min]	200 V/ns
Data Rate	2 MHz
Inputs - Side 1/Side 2 [custom]	2
Inputs - Side 1/Side 2 [custom]	1
Isolated Power	True, False
Mounting Type	Surface Mount
Number of Channels	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Propagation Delay tpLH / tpHL (Max) [custom]	50 ns
Propagation Delay tpLH / tpHL (Max) [custom]	133.3 ns
Pulse Width Distortion (Max) [Max]	94.2 ns
Rise / Fall Time (Typ) [custom]	-
Rise / Fall Time (Typ) [custom]	36.1 ns
Supplier Device Package	8-SOIC
Technology	Capacitive Coupling
Type	I2C, CAN
Voltage - Isolation	3000 VAC
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	1.71 V

ADuM1253 Series

Ultra-Low-Power, I2C Isolator with Unidirectional SCL, Extended VDD, Idle-Bus Hot-Swap, and Low VOL

Part	Technology	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Mounting Type	Data Rate	Rise / Fall Time (Typ)	Rise / Fall Time (Typ)	Common Mode Transient Immunity (Min) [Min]	Channel Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Pulse Width Distortion (Max) [Max]	Inputs - Side 1/Side 2 [custom]	Inputs - Side 1/Side 2 [custom]	Number of Channels	Type	Package / Case	Package / Case	Package / Case	Propagation Delay tpLH / tpHL (Max) [custom]	Propagation Delay tpLH / tpHL (Max) [custom]	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Voltage - Isolation	Package / Case
Analog Devices Inc./Maxim Integrated ADUM1253AWA+	Magnetic Coupling	125 °C	-40 C	8-SOIC	Surface Mount	2 MHz	20.3 ns	-	200 V/ns	Unidirectional	5.5 V	1.71 V	94.2 ns	2	1	3	CAN I2C	0.154 in	8-SOIC	3.9 mm	50 ns	133.3 ns
Analog Devices Inc./Maxim Integrated ADUM1253AWA+T	Magnetic Coupling	125 °C	-40 C	8-SOIC	Surface Mount	2 MHz	20.3 ns	-	200 V/ns	Unidirectional	5.5 V	1.71 V	94.2 ns	2	1	3	CAN I2C	0.154 in	8-SOIC	3.9 mm	50 ns	133.3 ns
Analog Devices Inc./Maxim Integrated ADUM1253ASA+T	Capacitive Coupling	125 °C	-40 C	8-SOIC	Surface Mount	2 MHz			200 V/ns	Bidirectional Unidirectional	5.5 V	1.71 V	94.2 ns	2	1	2	CAN I2C	0.154 in	8-SOIC	3.9 mm	50 ns	133.3 ns	-	36.1 ns	3000 VAC
Analog Devices Inc./Maxim Integrated ADUM1253AUA+	Magnetic Coupling	125 °C	-40 C	8-µMAX	Surface Mount	2 MHz	20.3 ns	-	200 V/ns	Unidirectional	5.5 V	1.71 V	94.2 ns	2	1	3	CAN I2C		8-MSOP 8-TSSOP		50 ns	133.3 ns			2500 Vrms	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated ADUM1253ASA+	Capacitive Coupling	125 °C	-40 C	8-SOIC	Surface Mount	2 MHz			200 V/ns	Bidirectional Unidirectional	5.5 V	1.71 V	94.2 ns	2	1	2	CAN I2C	0.154 in	8-SOIC	3.9 mm	50 ns	133.3 ns	-	36.1 ns	3000 VAC
Analog Devices Inc./Maxim Integrated ADUM1253AUA+T	Magnetic Coupling	125 °C	-40 C	8-µMAX	Surface Mount	2 MHz	20.3 ns	-	200 V/ns	Unidirectional	5.5 V	1.71 V	94.2 ns	2	1	3	CAN I2C		8-MSOP 8-TSSOP		50 ns	133.3 ns			2500 Vrms	0.118 in 3 mm Width

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	Tube	1	$ 4.30	1w
		10	$ 3.26
		25	$ 3.00
		100	$ 2.71
		300	$ 2.55
		500	$ 2.49
		1000	$ 2.43
		2500	$ 2.35

Description

General part information

ADuM1253 Series

The ADuM1253 offers two open-drain channels, one unidirectional and one bidirectional for applications, such as I2C, that require data to be transmitted in both directions on the same line but have a unidirectional clock. To prevent latch-up action, side 1 outputs comprise special buffers that regulate the logic-low voltage at 0.64V, and the input logic-low threshold is at least 50mV lower than the output logic-low voltage. Side 2 features conventional buffers that do not regulate logic-low output voltage.The ADuM1253 features independent 1.71V to 5.5V supplies on both side 1 and side 2 of the isolator. The device operates up to 2MHz. The ultra-low standby current of 21μA per side is ideal for battery-operated systems.The ADuM1253 provides a disturbance-free bus connection for hot-plug connections on side 2 by first precharging the bus pins and then monitoring the bus state for either an idle bus or detection of a I2C stop condition before connecting side 1 and side 2.The ADuM1253 is available in both an 8-pin narrow- and wide-body SOIC package, and in an 8-pin MSOP package. The device is rated for operation at ambient temperatures of -40°C to +125°C.ApplicationsIsolated I2C/SMBus InterfaceBattery Management SystemsPower Over Ethernet (PoE)Motor Control Systems

Documents

Technical documentation and resources

ADUM1253ASA+ | Datasheet

Datasheet

ADuM1252SEVKIT: Evaluation Kit for ADuM1252, ADuM1253, ADuM1254, ADuM1255 (Rev.B)

User Guide

Package Drawing - S8MS+24A

Package Drawing