ST TS1851, TS1852, TS1854, TS1851A, TS1852A User Manual

TS185x, TS185xA

1.8 V input/output, rail-to-rail, low power operational amplifiers

Features

■Operating range from VCC = 1.8 to 6 V

■Rail-to-rail input and output

■Extended Vicm (VCC- - 0.2 V to VCC + + 0.2 V)

■Low supply current (120 μA)

■Good accuracy (1 mV max for A version)

■Gain bandwidth product (530 kHz)

■High unity gain stability (able to drive 500 pF)

■ESD tolerance (2 kV)

■Latch-up immunity

■Available in SOT23-5 micropackage

Applications

■Two-cell battery-powered systems

■Battery-powered electronic equipment

■Cordless phones

■Cellular phones

■Laptops

■PDAs

Description

The TS185x (single, dual and quad) can operate with voltages as low as 1.8 V. They feature both input and output rail-to-rail (1.71 at VCC = 1.8 V, RL = 2 kΩ), 120 μA current consumption and 530 kHz gain bandwidth product.

With this low consumption and a sufficient GBP for many applications, these operational amplifiers are well-suited to all kinds of battery supplied and portable applications.

The TS1851 is housed in the space-saving 5-pin SOT23-5 package, which simplifies board design (outside dimensions are 2.8 mm x 2.9 mm).

Pin connections (top view)

TS1851ILT

Out	1							5	VCC+
VCC-	2
In+	3							4	In-

TS1851ID/IDT

	N.C.								N.C.
		1						8
				_
	In-	2						7	VCC+
	In+			+					Out
		3						6
									N.C.
	VCC-	4						5

TS1852ID/IDT-TS1852IST-TS1852IPT

Out1	1			8	VCC+
In1-	2	_		7	Out2
In1+	3	+	_	6	In2-
VCC-	4		+	5	In2+
TS1854ID/IDT-TS1854IPT
Out1	1			14	Out4
In1-	2	_	_	13	In4-
In1+	3	+	+	12	In4+
VCC+	4			11	VCC-

In2+	5		+			+			10	In3+
		_					_			In3-
In2-	6								9
Out2	7								8	Out3

	Table 1.	Device summary
	Reference	Single	Dual	Quad
		version	version	version
	TS185x	TS1851	TS1852	TS1854
	TS185xA	TS1851A	TS1852A	TS1854A

March 2010

Doc ID 6991 Rev 4

1/24

www.st.com

Contents	TS185x, TS185xA

Contents

1	Absolute maximum ratings and operating conditions . . . . . . . . . . . .		. 3
2	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		5
3	Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		15
	3.1	SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16
	3.2	TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
	3.3	MiniSO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
	3.4	SO-14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
	3.5	TSSOP14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	20
	3.6	SOT23-5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
4	Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		22
5	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		23

2/24	Doc ID 6991 Rev 4

TS185x, TS185xA	Absolute maximum ratings and operating conditions

1 Absolute maximum ratings and operating conditions

Table 2.	Absolute maximum ratings
Symbol	Parameter	Value	Unit
VCC	Supply voltage (1)	7	V
Vid	Differential input voltage(2)	±1	V
Vi	Input voltage	VCC- -0.3 to VCC+ +0.3	V
Toper	Operating free-air temperature range	-40 to + 125	°C
Tstg	Storage temperature	-65 to +150	°C
Tj	Maximum junction temperature	150	°C
	Thermal resistance junction to ambient (3)
	SOT23-5	250
Rthja	miniSO-8	190	°C/W
	SO-8	125
	SO-14	103
	TSSOP8	120
	TSSOP14	100
	Thermal resistance junction to case
	SOT23-5	81
Rthjc	miniSO-8	39	°C/W
	SO-8	40
	SO-14	31
	TSSOP8	37
	TSSOP14	32
	HBM: human body model(4)	2	kV
ESD	MM: machine model(5)	200	V
	CDM: charged device model(6)	1.5	kV
	Lead temperature (soldering, 10sec)	250	°C
	Output short-circuit duration	See note(7)

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

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

Vid > ±1 V, the maximum input current must not exceed ±1 mA. When Vid > ±1 V, add an input series resistor to limit the input current.

3.Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers.

4.Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.

5.Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating.

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

7.Short-circuits from the output to VCC can cause excessive heating. The maximum output current is approximately 48 mA, independent of the magnitude of VCC. Destructive dissipation can result from simultaneous short-circuits on all amplifiers.

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Absolute maximum ratings and operating conditions			TS185x, TS185xA
	Table 3.	Operating conditions
	Symbol	Parameter	Value	Unit
	VCC	Supply voltage	1.8 to 6	V
		Common-mode input voltage range
	Vicm	Top = 25°C, 1.8 ≤ VCC ≤ 6 V	VCC- - 0.2 to VCC+ + 0.2	V
		Tmin < Top < Tmax, 1.8 ≤ VCC ≤ 5.5 V	VCC- to VCC+
	Toper	Operating free-air temperature range	-40 to + 125	°C

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TS185x, TS185xA	Electrical characteristics

2 Electrical characteristics

Table 4. Electrical characteristics measured at VCC+ = +1.8 V, VCC- = 0 V, with CL and RL connected to VCC/2, Tamb = 25°C (unless otherwise specified) (1)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

TS1851/2/4

3

Vio

Input offset voltage

Tmin ≤ Tamb

≤ Tmax

0.1

6

mV

TS1851A/2A/4A

1

Tmin ≤ Tamb

≤ Tmax

1.5

Vio

Input offset voltage drift

2

μV/°C

V

icm

= V

= V

CC

/2 (2)

1

9

Iio

Input offset current

out

nA

Tmin ≤ Tamb

≤ Tmax

25

V

icm

= V

= V

CC

/2(2)

10

50

Iib

Input bias current

out

nA

Tmin ≤ Tamb

≤ Tmax

80

CMR

Common mode rejection ratio

0 ≤Vicm ≤VCC

55

85

dB

20 log ( Vic/ Vio)

Tmin ≤ Tamb

≤ Tmax

52

Avd

Large signal voltage gain

Vout = 0.5 to

1.3 V

dB

R = 10 kΩ

80

100

L

RL = 2 kΩ

70

100

Vid = 100 mV

RL = 10 kΩ

1.7

1.77

VOH

High level output voltage

RL = 2 kΩ

1.65

1.7

V

Tmin ≤ Tamb

≤ Tmax, RL = 10 kΩ

1.7

Tmin ≤ Tamb

≤ Tmax, RL = 2 kΩ

1.65

Vid = -100 mV

RL = 10 kΩ

40

70

VOL

Low level output voltage

RL = 2 kΩ

62

90

mV

Tmin ≤ Tamb

≤ Tmax, RL = 10 kΩ

100

Tmin ≤ Tamb

≤ Tmax, RL = 2 kΩ

120

Output source current

Vid = 100 mV, VO = VCC-at Tamb

15

29

mA

Io

at Tmin ≤ Tamb

≤ Tmax

5

5

Output sink current

Vid = -100 mV, VO = VCC+, at Tamb

15

46

mA

at Tmin ≤ Tamb

≤ Tmax

5

Vout = VCC/2

ICC

Supply current (per amplifier)

AVCL = 1, no load

120

170

μA

Tmin ≤ Tamb

≤ Tmax

200

GBP

Gain bandwidth product

RL = 10 kΩ, CL = 100 pF, f = 100 kHz

300

530

kHz

SR

Slew rate

RL = 10 kΩ, CL = 100 pF, AV = 1

0.1

0.18

V/μs

φm

Phase margin

CL = 100 pF

60

Degrees

en

Input voltage noise

f = 1 kHz

40

nV/√Hz

THD

Total harmonic distortion

0.01

%

1.All parameter limits at temperatures other than 25°C are guaranteed by correlation.

2.Maximum values include unavoidable inaccuracies of the industrial tests.

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Electrical characteristics

TS185x, TS185xA

Table 5.

Electrical characteristics measured at VCC+ = +3 V, VCC- = 0 V, with CL and RL connected to

V

/2, T

= 25°C (unless otherwise specified) (1)

CC

amb

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Vicm = Vout = VCC/2

TS1851/2/4

3

Vio

Input offset voltage

Tmin ≤ Tamb

≤ Tmax

0.1

6

mV

TS1851A/2A/4A

1

Tmin ≤ Tamb

≤ Tmax

1.5

Vio

Input offset voltage drift

2

μV/°C

V

icm

= V

= V

CC

/2(2)

1

9

Iio

Input offset current

out

nA

Tmin ≤ Tamb

≤ Tmax

25

V

icm

= V

= V

CC

/2(2)

10

55

Iib

Input bias current

out

nA

Tmin ≤ Tamb

≤ Tmax

85

CMR

Common mode rejection ratio

0 ≤ Vicm ≤ VCC

60

90

dB

20 log ( Vic/ Vio)

Tmin ≤ Tamb

≤ Tmax

57

Avd

Large signal voltage gain

Vout = 0.5 to 2.5 V

dB

R = 10 kΩ

83

102

L

RL = 2 kΩ

74

102

Vid = 100 mV

RL = 10 kΩ

2.9

2.96

VOH

High level output voltage

RL = 2 kΩ

2.85

2.94

V

Tmin ≤ Tamb

≤ Tmax, RL = 10 kΩ

2.9

Tmin ≤ Tamb

≤ Tmax, RL = 2 kΩ

2.85

Vid = -100 mV

RL = 10 kΩ

10

90

VOL

Low level output voltage

RL = 2 kΩ

46

100

mV

Tmin ≤ Tamb

≤ Tmax, RL = 10 kΩ

120

Tmin ≤ Tamb

≤ Tmax, RL = 2 kΩ

130

Output source current

Vid = 100 mV, VO = VCC-, at Tamb

15

47

mA

Io

At Tmin ≤ Tamb

≤ Tmax

5

Output sink current

Vid = -100 mV, VO = VCC+, at Tamb

15

47

mA

At Tmin ≤ Tamb

≤ Tmax

5

Vout = VCC/2

ICC

Supply current (per amplifier)

AVCL = 1, no load

150

200

μA

Tmin ≤ Tamb

≤ Tmax

230

GBP

Gain bandwidth product

RL = 10 kΩ, CL = 100 pF, f = 100 kHz

370

600

kHz

SR

Slew rate

RL = 10 kΩ, CL = 100 pF, AV = 1

0.12

0.2

V/μs

φm

Phase margin

CL = 100 pF

60

Degrees

en

Input voltage noise

f = 1 kHz

40

nV/√Hz

THD

Total harmonic distortion

Vout = 2 Vpk-pk, AV = -1, f = 1 kHz

0.005

%

1.All parameter limits at temperatures other than 25°C are guaranteed by correlation.

2.Maximum values include unavoidable inaccuracies of the industrial tests.

6/24	Doc ID 6991 Rev 4

TS185x, TS185xA								Electrical characteristics
Table 6.	Electrical characteristics measured at VCC+ = +5 V, VCC- = 0 V, with CL and RL connected to
	V	/2, T			= 25°C (unless otherwise specified) (1)
	CC		amb
Symbol			Parameter				Conditions	Min.	Typ.	Max.	Unit
						Vicm = Vout = VCC/2
						TS1851/2/4			0.1	3
Vio	Input offset voltage					Tmin ≤ Tamb	≤ Tmax			6	mV
						TS1851A/2A/4A				1
						Tmin ≤ Tamb	≤ Tmax			1.5
Vio	Input offset voltage drift								2		μV/°C
Iio	Input offset current					Vicm = Vout = VCC/2(2)			1	9	nA
						Tmin ≤Tamb	≤Tmax			25
Iib	Input bias current					Vicm = Vout = VCC/2(2)			16	63	nA
						Tmin ≤Tamb	≤Tmax			93
CMR	Common mode rejection ratio					0 ≤Vicm ≤VCC		65	95		dB
	20 log ( Vic/ Vio)					Tmin ≤Tamb	≤Tmax	62
SVR	Supply voltage rejection ratio					VCC = 1.8 to 5 V		70	90		dB
	20 log (		Vcc/	Vio)
Avd	Large signal voltage gain					Vout = 0.5 to 4 V					dB
						R = 10 kΩ		85	104
						L
						RL = 2 kΩ		77	104
						Vid = 100 mV
						RL = 10 kΩ		4.85	4.95
VOH	High level output voltage					RL = 2 kΩ		4.8	4.91		V
						Tmin ≤ Tamb	≤ Tmax, RL = 10 kΩ	4.85
						Tmin ≤ Tamb	≤ Tmax, RL = 2 kΩ	4.8
						Vid = -100 mV
						RL = 10 kΩ			40	180
VOL	Low level output voltage					RL = 2 kΩ			80	200	mV
						Tmin ≤ Tamb	≤ Tmax, RL = 10 kΩ			180
						Tmin ≤ Tamb	≤ Tmax, RL = 2 kΩ			200
	Output source current					Vid = 100 mV, VO = VCC-, at Tamb		15	48		mA
Io						at Tmin ≤ Tamb ≤ Tmax		5
	Output sink current					Vid = -100 mV, VO = VCC+, at Tamb		15	48		mA
						at Tmin ≤ Tamb ≤ Tmax		5
						Vout = VCC/2
ICC	Supply current (per amplifier)					AVCL = 1, no load			162	220	μA
						Tmin ≤ Tamb	≤ Tmax			250
GBP	Gain bandwidth product					RL = 10 kΩ, CL = 100 pF, f = 100 kHz		380	656		kHz
SR	Slew rate					RL = 10 kΩ, CL = 100 pF, AV = 1		0.13	0.25		V/μs
φm	Phase margin					CL = 100 pF			60		Degrees
en	Input voltage noise					f = 1 kHz			40		nV/√Hz
THD	Total harmonic distortion					Vout = 2 Vpk-pk, AV = -1, f = 1 kHz			0.01		%

1.All parameter limits at temperatures other than 25°C are guaranteed by correlation.

2.Maximum values include unavoidable inaccuracies of the industrial tests.

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Electrical characteristics	TS185x, TS185xA

Figure 1.		Input offset voltage distribution									Figure 2.		Input offset voltage vs. temperature
	100						488 pieces tested					400
												300						Vcc = 1.8V
							Vcc = 10V				(µV)
	80						Temp = +25°C
												200
Quantityof Pieces											VoltageInput Drift
												-200
	60											100							Vcc = 10V
												0
	40											-100
	20
												-300
	0											-400
	-2.	-1.6 -1.2	-.8	-.4	0	.4	.8	1.2	1.6	2		-40	-20	0	20	40	60	80	100 120 140
			Input Offset Voltage (mV)													Temperature (°C)

Figure 3. Input bias current vs. temperature Figure 4.	Input bias current vs. temperature
at Vcc = 1.8 V	at Vcc = 3 V

	0											0
			Vcc = 1.8V								(nA)	-2		Vcc = 3V
(nA)	-2		Vicm = 0.9V											Vicm = 1.5V
current	-4										current	-4
	-6											-6
bias	-8										bias	-8
Input											Input
	-10											-10
	-12											-12
	-40	-20	0	20	40	60	80	100	120	140		-40	-20	0	20	40	60	80 100 120 140
				Temperature (°C)											Temperature (°C)

Figure 5. Input bias current vs. temperature Figure 6.	Supply current/amplifier vs. supply
at Vcc = 5 V	voltage

	0									200
			Vcc = 5V
Input bias current (nA)
	-2		Vicm = 2.5V						Supply Current (µA)	150
	-4												Tamb = 25°C
	-6									100
	-8									50
	-10
	-12									0
										0	2	4	6	8
	-40	-20	0	20	40	60	80 100 120	140
												Supply Voltage (V)
				Temperature (°C)

8/24	Doc ID 6991 Rev 4