ST TS931, TS932, TS934, TS931A, TS932A User Manual

TS93x, TS93xA, TS93xB

Output rail-to-rail micropower operational amplifiers

Features

■Rail-to-rail output voltage swing

■Micropower consumption (20 μA)

■Single supply operation (2.7 to 10 V)

■Low offset (2 mV max. for TS93xB)

■CMOS inputs

■Ultra low input bias current (1 pA)

■ESD protection (2 kV)

■Latch-up immunity (class A)

■Available in SOT23-5 micropackage

■Automotive grade

Applications

■Battery-powered systems

■Portable communication systems

■Alarms, smoke detectors

■Instrumentation and sensoring

■PH meters

■Digital scales

■Automotive

Description

The TS93x (single, dual and quad) series are operational amplifiers that can operate with voltages as low as 2.7 V and reach a 2.9 Vpp output swing with RL = 100 kΩ when supplied at 3 V.

Offering a typical consumption of only 20 μA, these devices are particularly well-suited to battery-powered applications.

The amplifiers’ space-saving 5-pin SOT23-5 package with outer dimensions of

2.8 mm x 2.9 mm make them very easy to implement on a board design.

Pin connections (top view)

		TS931ILT
	Out		1	5	VCC+
	VCC-		2
	In+		3	4	In-
TS931ID-TS931IDT
N.C.	1				8	N.C.
In-	2			_	7	VCC+
In+	3			+	6	Out
VCC-	4				5	N.C.
TS932ID-TS932IDT
Out1	1				8	VCC+
In1-	2	_			7	Out2
In1+	3	+		_	6	In2-
VCC-	4			+	5	In2+
TS934ID-TS934IDT-TS934IPT
Out1	1				14	Out4
In1-	2	_		_	13	In4-
In1+	3	+		+	12	In4+
VCC+	4				11	VCC-
In2+	5	+		+	10	In3+
In2-	6	_		_	9	In3-
Out2	7				8	Out3

Table 1. Device summary

Reference	Part number
TS93x	TS931, TS932, TS934
TS93xA	TS931A, TS932A, TS934A
TS93xB	TS931B, TS932B, TS934B

September 2009

Doc ID 6911 Rev 4

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www.st.com

Absolute maximum ratings and operating conditions	TS93x, TS93xA, TS93xB

1 Absolute maximum ratings and operating conditions

	Table 2.	Absolute maximum ratings
	Symbol	Parameter	Value	Unit
	VCC	Supply voltage (1)	12	V
	Vid	Differential input voltage (2)	±VCC	V
	Vin	Input voltage range (3)	VCC- -0.3 to VCC+ +0.3	V
	Iin	Input current range (4)	10	mA
	Tstd	Storage temperature range	-65 to +150	°C
	Tj	Maximum junction temperature	150	°C
		Thermal resistance junction to ambient (5)
		– SOT23-5	250
	Rthja	– SO8	125	°C/W
		– SO14	103
		– TSSOP8	120
		– TSSOP14	100
		HBM: human body model(6)	2	kV
	ESD	MM: machine model(7)	200	V
		CDM: charged device model(8)	2	kV
		Latch-up immunity	200	mA
		Soldering temperature (10 sec), leaded version	250	°C

1.All voltages values, except differential voltage are with respect to network terminal.

2.Differential voltages are non-inverting input terminal with respect to the inverting input terminal.

3.The magnitude of input and output voltages must never exceed VCC+ +0.3 V.

4.Input current must be limited by a resistor in series with the inputs.

5.Short-circuits can cause excessive heating and destructive dissipation.

6.Human body model: 100 pF discharged through a 1.5 kΩ resistor into pin of device.

7.Machine model ESD: a 200 pF capacitor is charged to the specified voltage, then discharged directly into the IC with no external series resistor (internal resistor < 5 Ω), into pin-to-pin of device.

8.Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to ground through only one pin. This is done for all pins.

Table 3.	Operating conditions
Symbol	Parameter	Value	Unit
VCC	Supply voltage	2.7 to 10	V
Vicm	Common mode input voltage range	VCC- -0.2 to VCC+ -1.5	V
Toper	Operating free air temperature range	-40 to +105	°C

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TS93x, TS93xA, TS93xB	Electrical characteristics

2 Electrical characteristics

Table 4 and Table 5 give the electrical characteristics at each VCC value.

Table 4.	VCC+ = +3 V, VCC- = 0 V, Tamb = 25° C
	(unless otherwise specified)
Symbol	Parameter	Min.	Typ.	Max.	Unit
	Input offset voltage
	TS931/2/4			10
	TS931/2/4A			5
Vio	TS931/2/4B			2	mV
	Tmin < Top < Tmax			15
	TS931/2/4
	TS931/2/4A			10
	TS931/2/4B			6
Vio	Input offset voltage drift		3		μV/°C
Iio	Input offset current (1)		1	100	pA
	Tmin < Top < Tmax			200
Iib	Input bias current (1)		1	150	pA
	Tmin < Top < Tmax			300
CMR	Common mode rejection ratio, 0 ≤Vicm ≤VCC+ -1.7	55	85		dB
	Tmin < Top < Tmax	55	85
SVR	Supply voltage rejection ratio (2)	55	85		dB
	Tmin < Top < Tmax	55	85
	Large signal voltage gain
Avd	VO = 2 Vpp, RL = 1 MΩ		120		dB
	RL = 100 kΩ		106
VOH	High level output voltage, VID = 100 mV, RL = 100 kΩ	2.95	2.99		V
	Tmin < Top < Tmax	2.95
VOL	Low level output voltage, VID = -100 mV, RL = 100 kΩ		10	50	mV
	Tmin < Top < Tmax			50
	Output source current
Io	VID = 100mV, VO = VCC-		1.5		mA
	Output sink current
	VID = -100 mV, VO = VCC+		1.5
ICC	Supply current (per amplifier), AVCL = 1, no load		20	31	μA
	Tmin < Top < Tmax			33
GBP	Gain bandwidth product				kHz
	RL = 100 kΩ, CL = 50 pF		100
SR	Slew rate				V/ms
	RL = 100 kΩ, CL = 50 pF		50

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Electrical characteristics			TS93x, TS93xA, TS93xB
	Table 4.	VCC+ = +3 V, VCC- = 0 V, Tamb = 25° C
		(unless otherwise specified) (continued)
	Symbol	Parameter	Min.	Typ.	Max.	Unit
	φm	Phase margin				Degrees
		CL = 50 pF		65
	en	Input voltage noise		75		nV/√Hz

1.Maximum values including unavoidable inaccuracies of the industrial test.

2.VCC has a 0.2 V variation.

Table 5.	VCC+ = +5 V, VCC- = 0 V, Tamb = 25° C
	(unless otherwise specified)
Symbol	Parameter	Min.	Typ.	Max.	Unit
	Input offset voltage
	TS931/2/4			10
	TS931/2/4A			5
Vio	TS931/2/4B			2	mV
	Tmin < Top < Tmax
	TS931/2/4			15
	TS931/2/4A			10
	TS931/2/4B			6
Vio	Input offset voltage drift		3		μV/°C
Iio	Input offset current (1)		1	100	pA
	Tmin < Top < Tmax			200
Iib	Input bias current (1)		1	150	pA
	Tmin < Top < Tmax			300
CMR	Common mode rejection ratio, 0 ≤Vicm ≤VCC+ - 1.7	55	85		dB
	Tmin < Top < Tmax	55	85
SVR	Supply voltage rejection ratio (2)	55	85		dB
	Tmin < Top < Tmax	55	85
	Large signal voltage gain
Avd	VO = 4 Vpp, RL = 1 MΩ		120		dB
	RL = 100 kΩ		112
VOH	High level output voltage, VID = 100 mV, RL = 100 kΩ	4.95	4.99		V
	Tmin < Top < Tmax	4.95
VOL	Low level output voltage, VID = -100 mV, RL = 100 kΩ		10	50	mV
	Tmin < Top < Tmax			50
	Output source current
Io	VID = 100 mV, VO = VDD		5		mA
	Output sink current
	VID = -100 mV, VO = VCC		5
ICC	Supply current (per amplifier), AVCL = 1, no load		20	33	μA
	Tmin < Top < Tmax			35

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TS93x, TS93xA, TS93xB			Electrical characteristics
	Table 5.	VCC+ = +5 V, VCC- = 0 V, Tamb = 25° C
		(unless otherwise specified) (continued)
	Symbol	Parameter	Min.	Typ.	Max.	Unit
	GBP	Gain bandwidth product				kHz
		RL = 100 KΩ, CL = 50 pF		100
	SR	Slew rate				V/ms
		RL = 100 KΩ, CL = 50 pF		50
	φm	Phase margin				Degrees
		CL = 50 pF		65
	en	Input voltage noise		76		nV/√Hz

1.Maximum values including unavoidable inaccuracies of the industrial test.

2.VCC has a 0.2 V variation.

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Electrical characteristics	TS93x, TS93xA, TS93xB
Figure 1. Input offset voltage vs. temperature Figure 2.	Supply current vs. supply voltage,
	in open loop configuration.

	50
(μV)		Vcc=5V
	0
VoltageDrift
	-50
InputOffset
	-100
	-150
	-40	-20	0	20	40	60	80

Temperature (°C)

	12
				Vid=-100mV
	10
				Vid=+100mV
(μA)	8
Current	6					Tamb=25°C
Supply	4
	2
	0
	0	2	4	6	8	10	12
				Supply Voltage (V)

Figure 3. Supply current vs. supply voltage Figure 4. Supply current vs. temperature in follower configuration,

Vicm = Vcc/2

Supply Current (μA)

20

18

Tamb=25°C

16

14

12

10

8

6

4

2

0

0

2

4

6

8

10

12

Supply Voltage (V)

21

Vcc from 2.7V to 10V

	20
(μA)	19
Current
Supply	18
	17
	16
	-40	-20	0	20	40	60	80

Temperature (°C)

Figure 5. Output short circuit current vs.	Figure 6. Output short circuit current vs.
temperature	supply voltage

	6				Isink, Vcc=5V
CurrentCircuit-ShortOutput(mA)	4						CurrentCircuit-ShortOutput(mA)
	2				Isink, Vcc=3V
	0			Isource, Vcc=3V
	-2
	-4			Isource, Vcc=5V
	-6
	-40	-20	0	20	40	60	80
				Temperature (°C)

30

Tamb=25°C

20

Sink

10

0

-10

Source

-20

-30

2	4	6	8	10
		Supply Voltage (V)

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