ST STG3482 User Manual

STG3482

Low voltage dual SP4T switch

Features

■Ultra low power dissipation:

–ICC = 0.1 μA (max.) at TA = 25 °C

■Low “ON” resistance:

–RON = 4.6 Ω (TA = 25 °C) at VCC = 4.3 V

– RON = 5.8 Ω (TA = 25 °C) at VCC = 3.0 V

■Wide operating voltage range:

–VCC (Opr) = 1.65 to 4.3 V single supply

■4.3 V tolerant and 1.8 V compatible threshold on digital control input at VCC = 2.3 to 3.0 V

■Typical bandwidth (-3dB) at 300 MHz on all channels

■Latch-up performance exceeds 300 mA per JESD 78, Class II

■ESD performance exceeds JESD22

–2000-V Human body model (A114-A)

QFN16L (2.6 x 1.8 mm)

Description

The STG3482 is a high-speed CMOS low voltage dual analog SP4T (single pole four throw) switch or 4:1 multiplexer/demultiplexer switch fabricated in silicon gate C2MOS technology. It is designed to operate from 1.65 to 4.3 V, making this device ideal for portable applications.

By controlling the SEL1 and SEL2, one of the independent channels will be connected to the common channel. An /OE pin is also available in this device to disconnect all the switches.

Additional key features are fast switching speed, break-before-make delay time and ultra low power consumption. All inputs and outputs are equipped with protection circuits against static discharge, giving them ESD immunity and transient excess voltage.

Table 1.	Device summary
	Order code	Package	Packaging
	STG3482QTR	QFN16L (2.6 x 1.8 mm)	Tape and reel
November 2007		Rev 2	1/14
			www.st.com

Contents	STG3482

Contents

1	Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. 3
	1.1	Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
2	Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		4
3	Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		5
	3.1	Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
4	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		6
5	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		10
6	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		13

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STG3482	Pin settings

1 Pin settings

Figure 1. Pin connection (top through view)

	1S3	D1	1S2	/OE
	16	15	14	13
1S4	1			12	1S1
VCC	2			11	GND
		Control
1SEL	3			10	2SEL
2S1	4			9	2S4
	5	6	7	8
	NC	2S2	D2	2S3

CS00019

1.1Pin description

	Table 2.	Pin description
	Pin number			Symbol	Name and function
		1		1S4	Independent channel
		2		VCC	Positive supply voltage
		3		1SEL	Control
		4		2S1	Independent channel
		5		NC	No connect
		6		2S2	Independent channel
		7		D2	Common channels
		8		2S3	Independent channel
		9		2S4	Independent channel
		10		2SEL	Control
		11		GND	Ground (0V)
		12		1S1	Independent channel
		13		/OE	Output enable (active low)
		14		1S2	Independent channel
		15		D1	Common channel
		16		1S3	Independent channel
Note:	Exposed pad must be soldered to a floating plane. Do NOT connect to power or ground.

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Device summary	STG3482

2 Device summary

Figure 2. Input equivalent circuit

D	S1
	S2
	S3
1SEL
2SEL
/OE	S4

CS003001

Table 3.	Truth table
/OE		1SEL	2SEL	Switch connection
H		X	X	High-Z
L		L	L	D1-1S1, D2-2S1
L		L	H	D1-1S2, D2-2S2
L		H	L	D1-1S3, D2-2S3
L		H	H	D1-1S4, D2-2S4

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STG3482	Maximum rating

3 Maximum rating

Stressing the device above the rating listed in the “Absolute maximum ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents.

	Table 4.	Absolute maximum ratings
	Symbol	Parameter	Value	Unit
	VCC	Supply voltage	-0.5 to 5.5	V
	VI	DC input voltage	-0.5 to VCC + 0.5	V
	VIC	DC control input voltage	-0.5 to 5.5	V
	VO	DC output voltage	-0.5 to VCC + 0.5	V
	IIKC	DC input diode current on control pin (VSEL<0V)	-50	mA
	IIK	DC input diode current (VSEL<0V)	±50	mA
	IOK	DC output diode current	±20	mA
	IO	DC output current	±128	mA
	IOP	DC output current peak (pulse at 1ms, 10% duty cycle)	±300	mA
	ICC or	DC VCC or ground current	±100	mA
	IGND
	PD	Power dissipation at T = 70ºC(1)	1120	mW
		A
	Tstg	Storage temperature	-65 to 150	°C
	TL	Lead temperature (10 sec)	300	°C

1. Derate above 70 ºC by 18.5 mW/C

3.1Recommended operating conditions

Table 5.	Recommended operating conditions
Symbol	Parameter			Value	Unit
VCC	Supply voltage			1.65 to 4.3	V
VI	Input voltage			0 to VCC	V
VIC	Control input voltage			0 to 4.3	V
VO	Output voltage			0 to VCC	V
Top	Operating temperature			-40 to 85	°C
dt/dv	Input rise and fall time control		VCC = 1.65 to 2.7 V	0 to 20	ns/V
	input		VCC = 3.0 to 4.3 V	0 to 10

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