Isolators

ISO1640DWR

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HOT-SWAPPABLE, ROBUST-EMC BIDIRECTIONAL I2C ISOLATOR WITH BIDIRECTIONAL CLOCK

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Search across all available documentation for this part.

DocumentsHow to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A)How to Isolate Signal and Power for I2C (Rev. B)+21

Isolators

ISO1640DWR

Active

Texas Instruments

HOT-SWAPPABLE, ROBUST-EMC BIDIRECTIONAL I2C ISOLATOR WITH BIDIRECTIONAL CLOCK

Deep-Dive with AI

DocumentsHow to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A)How to Isolate Signal and Power for I2C (Rev. B)+21

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	ISO1640DWR

Channel Type	Bidirectional
Common Mode Transient Immunity (Min) [Min]	50 kV/çs
Inputs - Side 1/Side 2 [custom]	2
Inputs - Side 1/Side 2 [custom]	2
Isolated Power	False
Mounting Type	Surface Mount
Number of Channels [custom]	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	16-SOIC
Package / Case [x]	0.295 in
Package / Case [y]	7.5 mm
Propagation Delay tpLH / tpHL (Max) [custom]	70 ns
Propagation Delay tpLH / tpHL (Max) [custom]	88 ns
Pulse Width Distortion (Max) [Max]	45 ns
Rise / Fall Time (Typ) [custom]	16 ns
Rise / Fall Time (Typ) [custom]	24 ns
Supplier Device Package	16-SOIC
Technology	Capacitive Coupling
Type	I2C
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	3 V

ISO1640-Q1 Series

Automotive, hot-swappable, robust-EMC bidirectional I2C isolator with bidirectional clock

Part	Grade	Supplier Device Package	Qualification	Voltage - Supply [Max]	Voltage - Supply [Min]	Propagation Delay tpLH / tpHL (Max) [Max]	Pulse Width Distortion (Max) [Max]	Common Mode Transient Immunity (Min) [Min]	Package / Case [x]	Package / Case	Package / Case [y]	Technology	Inputs - Side 1/Side 2 [custom]	Inputs - Side 1/Side 2 [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Number of Channels [custom]	Mounting Type	Type	Channel Type	Voltage - Isolation	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Propagation Delay tpLH / tpHL (Max) [custom]	Propagation Delay tpLH / tpHL (Max) [custom]
Texas Instruments ISO1640QDWRQ1	Automotive	16-SOIC	AEC-Q100	5.5 V	3 V	57 ns 88 ns	45 ns	50 kV/çs	0.295 in	16-SOIC	7.5 mm	Capacitive Coupling	2	2	125 °C	-40 °C	2	Surface Mount	I2C SPI	Bidirectional
Texas Instruments ISO1640BQDRQ1	Automotive	8-SOIC	AEC-Q100	5.5 V	3 V	57 ns 88 ns	45 ns	50 kV/çs	0.154 in	8-SOIC	3.9 mm	Capacitive Coupling	2	2	125 °C	-40 °C	2	Surface Mount	I2C SPI	Bidirectional	3000 VAC
Texas Instruments ISO1640DWR		16-SOIC		5.5 V	3 V		45 ns	50 kV/çs	0.295 in	16-SOIC	7.5 mm	Capacitive Coupling	2	2	125 °C	-40 °C	2	Surface Mount	I2C	Bidirectional		16 ns	24 ns	70 ns	88 ns

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 5.35
		10	$ 4.81
		25	$ 4.54
		100	$ 3.94
		250	$ 3.74
		500	$ 3.35
		1000	$ 2.83
	Digi-ReelÛ	1	$ 5.35
		10	$ 4.81
		25	$ 4.54
		100	$ 3.94
		250	$ 3.74
		500	$ 3.35
		1000	$ 2.83
	Tape & Reel (TR)	2000	$ 2.69
Texas Instruments	LARGE T&R	1	$ 3.64
		100	$ 3.19
		250	$ 2.23
		1000	$ 1.80

Description

General part information

ISO1640-Q1 Series

The ISO1640-Q1 (ISO164x-Q1) device is a hot swappable, low-power, bidirectional isolator that is compatible with I2C interfaces. The ISO164x supports UL 1577 isolation ratings of 5000 VRMSin the 16-DW package, and 3000 VRMSin the 8-D package. Each I2C isolation channel in this low emissions device has a logic input and open drain output separated by a double capacitive silicon dioxide (SiO2) insulation barrier. This family includes basic and reinforced insulation devices certified by VDE, UL, CSA, TUV and CQC. The ISO1640-Q1 has two isolated bidirectional channels for clock and data lines. ISO1640-Q1 integrates logic required to support bidirectional channels, providing a much simpler design and smaller footprint when compared to optocoupler-based solutions.