Texas Instruments INA208, INA208AIDRG4 Datasheet

Burr Brown Products from Texas Instruments

INA20x

INA20x

INA20x

INA206

INA207

INA208

SBOS360C – JUNE 2006 – REVISED JUNE 2007

Unidirectional Measurement Current-Shunt Monitor with Dual Comparators

FEATURES

∙COMPLETE CURRENT SENSE SOLUTION

∙DUAL COMPARATORS:

–Comparator 1 with Latch

–Comparator 2 with Optional Delay

∙COMMON-MODE RANGE: –16V to +80V

∙HIGH ACCURACY: 3.5% (max) OVER TEMP

∙BANDWIDTH: 500kHz

∙QUIESCENT CURRENT: 1.8mA

∙PACKAGES: SO-14, TSSOP-14, MSOP-10

APPLICATIONS
∙	NOTEBOOK COMPUTERS
∙	CELL PHONES
∙	TELECOM EQUIPMENT
∙	AUTOMOTIVE
∙	POWER MANAGEMENT
∙	BATTERY CHARGERS
∙	WELDING EQUIPMENT
		INA206−INA208
	VS	1	14	VIN+
	OUT	2	13	VIN−
CMP1 IN−/0.6V REF		1.2V REF		1.2V REF OUT
		3	12
	CMP1 IN+	4	11	CMP1 OUT
	CMP2 IN−	5	10	CMP2 OUT
CMP2 IN+/0.6V REF		6	9	CMP2 DELAY
	GND	7	8	CMP1 RESET
		SO -14, TSSOP-14

DEVICE	GAIN
INA206	20V/V
INA207	50V/V
INA208	100V/V

DESCRIPTION

The INA206, INA207, and INA208 are a family of unidirectional, current-shunt monitors with voltage output, dual comparators, and voltage reference. The INA206, INA207, and INA208 can sense drops across shunts at common-mode voltages from –16V to +80V. The INA206, INA207, and INA208 are available with three output voltage scales: 20V/V, 50V/V, and 100V/V, with up to 500kHz bandwidth.

The INA206, INA207, and INA208 also incorporate two open-drain comparators with internal 0.6V references. On 14-pin versions, the comparator references can be overridden by external inputs. Comparator 1 includes a latching capability, and Comparator 2 has a user-programmable delay on 14-pin versions. 14-pin versions also provide a 1.2V reference output.

The INA206, INA207, and INA208 operate from a single +2.7V to +18V supply. They are specified over the extended operating temperature range of –40°C to +125°C.

		INA206−INA208
VS	1	10	VIN+
OUT	2	9	VIN−
CMP1 IN+	3	8	CMP1 OUT
CMP2 IN−	4	7	CMP2 OUT
GND	5	6	CMP1 RESET
		0.6V REF
		MSOP-10

RELATED PRODUCTS

FEATURES	PRODUCT
Variant of INA206–INA208 Comparator 2	INA203–INA205
polarity
Current-shunt monitor with single	INA200–INA202
comparator and VREF
Current-shunt monitor only	INA193–INA198
Current-shunt monitor with split stages for	INA270–INA271
filter options

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.	Copyright © 2006–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

INA206

INA207

INA208

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SBOS360C – JUNE 2006 – REVISED JUNE 2007

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

ORDERING INFORMATION(1)

						EXTERNAL	INTERNAL
						COMP1 AND	COMP1 AND
			PACKAGE	PACKAGE	1.2V	COMP2	COMP2	COMP2
PRODUCT	GAIN	PACKAGE-LEAD	DESIGNATOR	MARKING	REF OUT	REF INPUTS	0.6V REF	DELAY PIN
		SO-14	D	INA206A	X	X	X	X
INA206	20V/V	MSOP-10	DGS	BQQ			X
		TSSOP-14	PW	INA206A	X	X	X	X
		SO-14	D	INA207A	X	X	X	X
INA207	50V/V	MSOP-10	DGS	BQR			X
		TSSOP-14	PW	INA207A	X	X	X	X
		SO-14	D	INA208A	X	X	X	X
INA208	100V/V	MSOP-10	DGS	BQS			X
		TSSOP-14	PW	INA208A	X	X	X	X

(1)For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Packages listed above but not found in the Package Option Addendum are preview packages.

ABSOLUTE MAXIMUM RATINGS(1)

			INA206, INA207, INA208	UNIT
	Supply Voltage, V+		18	V
	Current-Shunt Monitor Analog Inputs,	Differential (VIN+) – (VIN–)	–18 to +18	V
	VIN+ and VIN–	Common-Mode	–16 to +80	V
	Comparator Analog Input and Reset Pins		GND – 0.3 to (V+) + 0.3	V
	Analog Output, Out Pin		GND – 0.3 to (V+) + 0.3	V
	Comparator Output, Out Pin		GND – 0.3 to 18	V
	VREF and CMP2 Delay Pin		GND – 0.3 to 10	V
	Input Current Into Any Pin		5	mA
	Operating Temperature		–55 to +150	°C
	Storage Temperature		–65 to +150	°C
	Junction Temperature		+150	°C
	ESD Ratings	Human Body Model (HBM)	4000	V
		Charged Device Model (CDM)	500	V

(1)Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported.

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SBOS360C – JUNE 2006 – REVISED JUNE 2007

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, VS = +12V, VIN+ = 12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ each connected from CMP1 OUT and CMP2 OUT to VS, and CMP1 IN+ = 1V and CMP2 IN– = GND, unless otherwise noted.

CURRENT-SHUNT MONITOR				INA206, INA207, INA208
PARAMETERS		TEST CONDITIONS	MIN	TYP	MAX	UNIT
INPUT
Full-Scale Sense Input Voltage	VSENSE	VSENSE = VIN+ – VIN–		0.15	(VS –	V
					0.25)/Gain
Common-Mode Input Range	VCM		–16		80	V
Common-Mode Rejection Ratio	CMRR	VIN+ = –16V to +80V	80	100		dB
over Temperature		VIN+ = +12V to +80V	100	123		dB
Offset Voltage RTI(1)	VOS			±0.5	±2.5	mV
+25°C to +125°C					±3	mV
–40°C to +25°C					±3.5	mV
vs Temperature	dVOS/dT	–40°C to +125°C		5		μV/°C
vs Power-Supply	PSR	VOUT = 2V, VIN+ = 18V, 2.7V		2.5	100	μV/V
Input Bias Current, VIN– Pin	IB			±9	±16	μA
OUTPUT (VSENSE ³ 20mV)
Gain: INA206	G			20		V/V
Gain: INA207				50		V/V
Gain: INA208				100		V/V
Gain Error		VSENSE = 20mV to 100mV		±0.2	±1	%
over Temperature		VSENSE = 20mV to 100mV			±2	%
Total Output Error(2)		VSENSE = 120mV, VS = +16V		±0.75	±2.2	%
over Temperature		VSENSE = 120mV, VS = +16V			±3.5	%
Nonlinearity Error(3)		VSENSE = 20mV to 100mV		±0.002		%
Output Impedance	RO			1.5		W
Maximum Capacitive Load		No Sustained Oscillation		10		nF
OUTPUT (VSENSE < 20mV)(4)
INA206, INA207, INA208		–16V £ VCM < 0V		300		mV
INA206		0V £ VCM £ VS, VS = 5V			0.4	V
INA207		0V £ VCM £ VS, VS = 5V			1	V
INA208		0V £ VCM £ VS, VS = 5V			2	V
INA206, INA207, INA208		VS < VCM £ 80V		300		mV
VOLTAGE OUTPUT(5)
Output Swing to the Positive Rail		VIN– = 11V, VIN+ = 12V		(V+) – 0.15	(V+) – 0.25	V
Output Swing to GND(6)		VIN– = 0V, VIN+ = –0.5V		(VGND) + 0.004	(VGND) + 0.05	V
FREQUENCY RESPONSE
Bandwidth: INA206	BW	CLOAD = 5pF		500		kHz
Bandwidth: INA207		CLOAD = 5pF		300		kHz
Bandwidth: INA208		CLOAD = 5pF		200		kHz
Phase Margin		CLOAD < 10pF		40		Degrees
Slew Rate				1		V/μs
Settling Time (1%)		VSENSE = 10mVPP to 100mVPP,		2		μs
		CLOAD = 5pF
NOISE, RTI
Output Voltage Noise Density				40		nV/ÖHz

(1)Offset is extrapolated from measurements of the output at 20mV and 100mV VSENSE.

(2)Total output error includes effects of gain error and VOS.

(3)Linearity is best fit to a straight line.

(4)For details on this region of operation, see the Accuracy Variations as a Result of VSENSE and Common-Mode Voltage section in the Applications Information.

(5)See Typical Characteristics curve Output Swing vs Output Current.

(6)Specified by design.

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SBOS360C – JUNE 2006 – REVISED JUNE 2007

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, VS = +12V, VIN+ = 12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ each connected from CMP1 OUT and CMP2 OUT to VS, unless otherwise noted.

			INA206, INA207, INA208
COMPARATOR PARAMETERS		TEST CONDITIONS	MIN	TYP	MAX	UNIT
OFFSET VOLTAGE
Offset Voltage		Comparator Common-Mode Voltage = Threshold Voltage		2		mV
Offset Voltage Drift, Comparator 1				±2		μV/°C
Offset Voltage Drift, Comparator 2				+5.4		μV/°C
Threshold		TA = +25°C	590	600	610	mV
over Temperature			586		614	mV
Hysteresis(1), CMP1		TA = –40°C to +85°C		–8		mV
Hysteresis(1), CMP2		TA = –40°C to +85°C		8		mV
INPUT BIAS CURRENT(2)
CMP1 IN+, CMP2 IN–				0.005	10	nA
vs Temperature					15	nA
INPUT IMPEDANCE
Pins 3 and 6 (14-pin packages only)				10		kW
INPUT RANGE
CMP1 IN+ and CMP2 IN–				0V to VS – 1.5V		V
Pins 3 and 6 (14-pin packages only)(3)				0V to VS – 1.5V		V
OUTPUT
Large-Signal Differential Voltage Gain		CMP VOUT 1V to 4V, RL ³ 15kW connected to 5V		200		V/mV
High-Level Output Current		VID = 0.4V, VOH = VS		0.0001	1	μA
Low-Level Output Voltage		VID = –0.6V, IOL = 2.35mA		220	300	mV
RESPONSE TIME(4)
Comparator 1		RL to 5V, CL = 15pF, 100mV Input Step with 5mV Overdrive		1.3		μs
Comparator 2		RL to 5V, CL = 15pF, 100mV Input Step with 5mV Overdrive,		1.3		μs
		CDELAY Pin Open
RESET
RESET Threshold(5)				1.1		V
Logic Input Impedance				2		MW
Minimum RESET Pulse Width				1.5		μs
RESET Propagation Delay				3		μs
Comparator 2 Delay Equation(6)				CDELAY = tD/5		μF
Comparator 2 Delay	tD	CDELAY = 0.1μF		0.5		s

(1)Hysteresis refers to the threshold (the threshold specification applies to a rising edge of a noninverting input) of a falling edge on the noninverting input of the comparator. Refer to Figure 1.

(2)Specified by design.

(3)See the Comparator Maximum Input Voltage Range section in the Applications Information.

(4)The comparator response time specified is the interval between the input step function and the instant when the output crosses 1.4 V.

(5)RESET input has an internal 2MΩ (typical) pull-down. Leaving RESET open results in a LOW state, with transparent comparator operation.

(6)The Comparator 2 delay applies to both rising and falling edges of the comparator output.

VTHRESHOLD

VTHRESHOLD

0.592

0.6

0.6

0.608

Input Voltage

Input Voltage

Hysteresis = VTHRESHOLD – 8mV

Hysteresis = VTHRESHOLD – 8mV

a) CMP1

b) CMP2

Figure 1. Comparator Hysteresis

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SBOS360C – JUNE 2006 – REVISED JUNE 2007

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, VS = +12V, VIN+ = 12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ each connected from CMP1 OUT and CMP2 OUT to VS, unless otherwise noted.

			INA206, INA207, INA208
REFERENCE PARAMETERS		TEST CONDITIONS	MIN	TYP	MAX	UNIT
REFERENCE VOLTAGE
1.2VREFOUT Output Voltage			1.188	1.2	1.212	V
Reference Drift	dVOUT/dT	TA = –40°C to +85°C		40	100	ppm/°C
0.6VREF Output Voltage				0.6		V
(Pins 3 and 6 of 14-pin packages only)

Reference Drift	dVOUT/dT
LOAD REGULATION	dVOUT/dILOAD
Sourcing
Sinking
LOAD CURRENT	ILOAD
LINE REGULATION	dVOUT/dVS
CAPACITIVE LOAD
Reference Output Max. Capacitive Load

TA = –40°C to +85°C	40	100	ppm/°C
0mA < ISOURCE < 0.5mA	0.4	2	mV/mA
0mA < ISINK < 0.5mA	0.4		mV/mA
	1		mA
2.7V < VS < 18V	30		μV/V
No Sustained Oscillations	10		nF

OUTPUT IMPEDANCE
Pins 3 and 6 of 14-Pin Packages Only	10	kΩ

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, VS = +12V, VIN+ = 12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ each connected from CMP1 OUT and CMP2 OUT to VS, and CMP1 IN+ = 1V and CMP2 IN– = GND, unless otherwise noted.

			INA206, INA207, INA208
GENERAL PARAMETERS		TEST CONDITIONS	MIN	TYP	MAX	UNIT
POWER SUPPLY
Operating Power Supply	VS		+2.7		+18	V
Quiescent Current	IQ	VOUT = 2V		1.8	2.2	mA
over Temperature		VSENSE = 0mV			2.8	mA
Comparator Power-On Reset Threshold(1)				1.5		V
TEMPERATURE
Specified Temperature Range			–40		+125	°C
Operating Temperature Range			–55		+150	°C
Storage Temperature Range			–65		+150	°C
Thermal Resistance	θJA
MSOP-10 Surface-Mount				200		°C/W
SO-14, TSSOP-14 Surface-Mount				150		°C/W

(1)The INA206, INA207, and INA208 are designed to power-up with the comparator in a defined reset state as long as CMP1 RESET is open or grounded. The comparator will be in reset as long as the power supply is below the voltage shown here. The comparator will assume a state based on the comparator input above this supply voltage. If CMP1 RESET is high at power-up, the comparator output comes up high and requires a reset to assume a low state, if appropriate.

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SBOS360C – JUNE 2006 – REVISED JUNE 2007

TYPICAL CHARACTERISTICS

All specifications at TA = +25°C, VS = +12V, VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted.

GAIN vs FREQUENCY

	45
	40	G = 100		CLOAD = 1000pF
	35	G = 50
(dB)	30
		G=20
	25
Gain
	20
	15
	10
	5
	10k		100k	1M

Frequency (Hz)

Figure 2.

GAIN PLOT

	20
	18
	100V/V
	16
	14			50V/V
(V)	12
OUT	10
V	8
						20V/V
	6
	4
	2
	0
	20	100	200	300	400	500	600	700	800	900

VSENSE (mV)

Figure 4.

OUTPUT ERROR vs VSENSE

	value)	4.0
		3.5
	ErrorOutput outputidealtheof	3.0
		2.5
		2.0
	error(%	1.5
		0.5
		1.0
		0

0

50

100

150

200

250

300

350

400

450

500

VSENSE (mV)

Figure 6.

GAIN vs FREQUENCY

	45
	40	G = 100
	35	G=50
(dB)	30
		G=20
	25
Gain
	20
	15
	10
	5
	10k	100k	1M

Frequency (Hz)

Figure 3.

COMMON-MODE AND POWER-SUPPLY REJECTION vs FREQUENCY

		140
	Rejection(dB)	130
Mode and		120		CMRR
		110
		100
		90
Common--	Power--Supply			PSR
		80
		70
		60
		50
		40
		10	100	1k	10k	100k
				Frequency (Hz)

Figure 5.

OUTPUT ERROR vs COMMON-MODE VOLTAGE

	0.1
	0.09
	0.08
)	0.07
(%
	0.06
Error
	0.05
Output	0.04
	0.03
	0.02
	0.01
	0
	–16 –12	–8	–4	0	4	8	12	16	20	...	76	80

Common-- Mode Voltage (V)

Figure 7.

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			POSITIVE OUTPUT VOLTAGE SWING
				vs OUTPUT CURRENT
	12
	11	VS	= 12V
	10
		Sourcing Current
	9
(V)						+25°C
	8
Voltage								–40°C
	7				+125°C
	6	VS = 3V
Output	5
				+25 C
	4	Sourcing Current
				°	–40°C	Output stage is designed
	3
						to source current. Current
	2
						sinking capabilty is
	1	+125°C				approximately 400 A.
	0
		0	5	10	15	20	25	30

Output Current (mA)

Figure 8.

QUIESCENT CURRENT

vs COMMON-MODE VOLTAGE

	2.50
	VSENSE = 100mV
	2.25			VS = 12V			VS = 2.7V
	2.00
(mA)	1.75
Q
I				VS	= 12V
	1.50
	VSENSE = 0mV							VS = 2.7V
	1.25
	1.00
	–16 –12	–8	–4	0	4	8	12	16	20	24	28	32	36
						VCM (V)

Figure 10.

STEP RESPONSE

G = 20

Output Voltage (50mV/div)

VSENSE = 10mV to 20mV

Time (2 s/div)

Figure 12.

INA206

INA207

INA208

SBOS360C – JUNE 2006 – REVISED JUNE 2007

QUIESCENT CURRENT vs OUTPUT VOLTAGE

	3.5
	3.0
	2.5
(mA)	2.0
Q	1.5
I

1.0

0.5

0

0

1

2

3

4

5

6

7

8

9

10

Output Voltage (V)

Figure 9.

OUTPUT SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE

	34								–40°C
(mA)
	30						+25°C
Current
	26					+125°C
--Circuit	22
	18
Short	14
Output	10
	6
	2.5	3.5	4.5	5.5	6.5	7.5	8.5	9.5	10.5	11.5	17	18
					Supply Voltage (V)

Figure 11.

STEP RESPONSE

G = 20

Output Voltage (500mV/div)

VSENSE = 10mV to 100mV

Time (2 s/div)

Figure 13.

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STEP RESPONSE

G = 20

Output Voltage (50mV/div)

VSENSE = 90mV to 100mV

Time (2 s/div)

Figure 14.

STEP RESPONSE

G = 50

Output Voltage (1V/div)

VSENSE = 10mV to 100mV

Time (5 s/div)

Figure 16.

STEP RESPONSE

G = 100

Output Voltage (2V/div)

VSENSE = 10mV to 100mV

Time (10 s/div)

Figure 18.

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STEP RESPONSE

G = 50

Output Voltage (100mV/div)

VSENSE = 10mV to 20mV

Time (5 s/div)

Figure 15.

STEP RESPONSE

G = 50

Output Voltage (100mV/div)

VSENSE = 90mV to 100mV

Time (5 s/div)

Figure 17.

COMPARATOR VOL vs ISINK

		600
		500
		400
	(mV)	300
	OL
	V
		200
		100
		0

0

1

2

3

4

5

6

ISINK (mA)

Figure 19.

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COMPARATOR TRIP POINT vs SUPPLY VOLTAGE

	600
(mV)	599
	598
TripPoint	597
	595
Comparator	596
	594
	593
	592
	591
	590
			4		6		8		10						16		18
	2										12		14

Supply Voltage (V)

Figure 20.

COMPARATOR 1 PROPAGATION DELAY vs OVERDRIVE VOLTAGE

		200
		175
	(ns)	150
	Delay
	Propagation	125
		100
		75
		50

0	20	40	60	80	100	120	140	160	180	200
			Overdrive Voltage (mV)

Figure 22.

COMPARATOR RESET VOLTAGE vs SUPPLY VOLTAGE

	1.2
	1.0
(V)	0.8
Voltage	0.6
Reset	0.4
	0.2
	0

2

4

6

8

10

12

14

16

18

Supply Voltage (V)

Figure 24.

INA206

INA207

INA208

SBOS360C – JUNE 2006 – REVISED JUNE 2007

COMPARATOR TRIP POINT vs TEMPERATURE

	602
(mV)	601
TripPoint	600
	599
Comparator	598
	597
	596
	–50	–25	0	25	50	75	100	125

Temperature (°C)

Figure 21.

COMPARATOR 2 PROPAGATION DELAY vs OVERDRIVE VOLTAGE

		14
	s)	13
	Delay(
	Propagation	12
		11
		10

0

20

40

60

80

100

120

140

160

180

200

Overdrive Voltage (mV)

Figure 23.

COMPARATOR 1 PROPAGATION DELAY vs TEMPERATURE

	300
(ns)	275
	250
Delay	225
Propagation	200
	175
	150
	125
											75
	–50		–25		0		25		50				100		125

Temperature (°C)

Figure 25.

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