ST STG5678 User Manual

STG5678

Low voltage dual SPDT switch with negative rail capability

Features

■Distortion-free negative signal throughput down to VCC - 5.5 V

■Wide operating voltage range:

VCC (opr) = 1.65 to 4.5 V single supply

■Ultra low power dissipation:

ICC = 0.2 µA (max.) at TA = 85 °C

■Low ON resistance:

RON = 0.5 Ω (max. TA = 25 °C) at VCC = 3.6 V

■4.3 V tolerant and 1.8 V compatible threshold on digital control input at VCC = 1.65 V to 4.5 V

■Latch-up performance exceeds 300 mA (JESD 17)

■ESD performance:

–2000-V human-body model (IEC61340-3-1:2002 level 2)

–200-V machine model (IEC61340-3-2 level M2)

–1000-V charge device model (JESD22-C101-A level III)

Flip-chip 12

Description

The STG5678 is a high-speed CMOS low voltage dual analog SPDT (single pole dual throw) switch or 2:1 multiplexer/de-multiplexer switch fabricated in silicon gate CMOS technology. It is designed to operate from 1.65 to 4.5 V.

The device is capable of handling signals with negative voltages from VCC - 5.5 V to VCC without any distortion.

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
	STG5678BJR	Flip-chip 12	Tape and reel
	STG5678CJR	Flip-chip 12 (with back side coating)	Tape and reel
June 2010		Doc ID 14580 Rev 3	1/23
			www.st.com

Contents	STG5678

Contents

1	Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. 3
	1.1	Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
	1.2	Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
2	STG5678 device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		4
3	Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		5
	3.1	Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
4	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		7
5	Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		11
6	Application hint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		15
	6.1	Input signal dynamic range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	15
7	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		16
8	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		22

2/23	Doc ID 14580 Rev 3

STG5678	Pin settings

1 Pin settings

1.1Pin connection

Figure 1. Pin connection (bump side view)

See note 1

	A	B	C	D		A	B	C	D
1	A1	B1	C1	D1	1	1SEL	1S1	D1	1S2
2	A2	B2	C2	D2	2	NC	GND	GND	VCC
3	A3	B3	C3	D3	3	2SEL	2S1	D2	2S2

1.Note 1: bump A1 is distinguished by a circular dot on the top-side. There is no circular dot on the bumpside.

1.2Pin description

Table 2.	Pin assignment
	Pin number		Symbol	Name and function
	A1		1SEL	Selection control for switch 1
	A2		NC	No connection
	A3		2SEL	Selection control for switch 2
	B1		1S1	Independent channel for switch 1
	B2		GND	Ground (0 V)
	B3		2S1	Independent channel for switch 2
	C1		D1	Common channel for switch 1
	C2		GND	Ground (0 V)
	C3		D2	Common channel for switch 2
	D1		1S2	Independent channel for switch 1
	D2		VCC	Positive supply voltage
	D3		2S2	Independent channel for switch 2

Doc ID 14580 Rev 3

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STG5678 device summary	STG5678

2 STG5678 device summary

Figure 2. Functional diagram

2SEL

D2	2S1
D2	2S2

D1D1 1S1

1S2

1SEL

Figure 3. Input equivalent circuit

	D		S2
			S1
	SEL
Table 3.	Truth table
	SEL	Switch S1	Switch S2
	H	ON	OFF (1)
	L	OFF (1)	ON

1.High impedance

4/23	Doc ID 14580 Rev 3

STG5678	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.

	Table 4.		Absolute maximum ratings
	Symbol		Parameter	Value	Unit
	VCC		Supply voltage	-0.5 to 5.5	V
	VI		DC input voltage	- (VCC - 6.0) to	V
				VCC + 0.5
	VIC		DC control input voltage	-0.5 to 5.5	V
	VO		DC output voltage	- (VCC - 6.0 V) to	V
				VCC + 0.5
	IIKC		DC input diode current on control pin (VSEL < 0 V)	-50	mA
	IIK		DC input diode current (VIN < 0 V)	±50	mA
	IOK		DC output diode current	±20	mA
	IO		DC output current	±150	mA
	IOP		DC output current peak (pulse at 1ms, 10% duty cycle)	±400	mA
	ICC or		DC VCC or ground current	±100	mA
	IGND
	P	D	Power dissipation at T = 70°C (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

Doc ID 14580 Rev 3

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Maximum rating	STG5678

3.1Recommended operating conditions

Table 5.	Recommended operating conditions
Symbol	Parameter			Value	Unit
VCC	Supply voltage			1.65 to 4.5	V
VI	Input voltage			VCC -5.5 to VCC	V
VIC	Control input voltage			0 to 4.5	V
VO	Output voltage			VCC -5.5 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 4.5 V	0 to 10

6/23	Doc ID 14580 Rev 3

STG5678	Electrical characteristics

4 Electrical characteristics

Table 6.	DC specifications
		Test conditions					Value
Symbol	Parameter	VCC			TA = 25 °C			-40 to 85 °C		Unit
		(V)		Min		Typ	Max	Min	Max
		1.65 −1.95		0.9		–	–	0.9	–
VIH	High level	2.25 −2.7		0.9		–	–	0.9	–	V
	input voltage	3.0 −4.3		1.0		–	–	1.0	–
		4.5		1.1		–	–	1.1	–
		1.65 −1.95		–		–	0.6	–	0.6
VIL	Low level	2.25 −2.7		–		–	0.6	–	0.6	V
	input voltage	3.0 −4.3		–		–	0.7	–	0.7
		4.5		–		–	0.7	–	0.7
		1.8		–		3.80	4.60	–	7.0
			VS = VCC −5.5 V
	Switch ON	2.7		–		0.77	0.90	–	1.2	Ω
RON			to VCC;
	resistance	3.0		–		0.64	0.80	–	1.0
			IS = 100 mA
		3.6		–		0.51	0.65	–	1.0
	ON	1.8		–		50	–	–	500
RON	resistance	2.7	VS at RON max	–		20	–	–	500	mΩ
	match
		3.0	IS = 100 mA	–		15	–	–	500
	between
	channels (1)
		3.6		–		15	–	–	500
		1.8		–		3.5	–	–	6.6
	ON		VS = VCC −5.5 V
RFLAT		2.7		–		0.50	–	–	0.8	Ω
	resistance		to VCC;
		3.0		–		0.40	–	–	0.6
	flatness (2)		IS = 100 mA
		3.6		–		0.25	–	–	0.5
	Sn OFF		VS = -1.2 to
IOFF	state	3.6	3.6 V	–		-0.55	–	-2	1	µA
	leakage		VD = 3.6 to
	current		-1.2 V
	Sn ON state		VS = -1.2 to
ION	leakage	3.6	3.6 V	–		-0.55	–	-2	1	µA
	current		VD = open

Doc ID 14580 Rev 3

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