Datasheet OPA369, OPA2369AIDGKT Datasheet (Texas Instruments)

 
  

200

150

100

50

0

-50

-100

-150

-200

OFFSETVOLTAGE

vsCOMMON-MODEVOLTAGE

(V =1.8V)

S

Common-ModeVoltage(V)

OffsetVoltage( V)

m

0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8

Competition

OPA369

1.8V, 1 μ A max, Zerø-Crossover

RAIL-TO-RAIL I/O OPERATIONAL AMPLIFIER

1

FEATURES DESCRIPTION

2

• ZERØ-CROSSOVER

• LOW POWER: 1 μ A (max)

• LOW OFFSET VOLTAGE: 750 μ V (max)

• LOW VOLTAGE SUPPLY: +1.8V to +5.5V

• LOW OFFSET DRIFT: 1.75 μ V/ ° C (max)

• microSIZE PACKAGES:

– SC70-5, SOT23-8, MSOP-8

APPLICATIONS

• BATTERY-POWERED INSTRUMENTS

• PORTABLE DEVICES

• MEDICAL INSTRUMENTS

• TEST EQUIPMENT

OPA369

OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

The OPA369 and OPA2369 are new low-power,
low-voltage operational amplifiers from Texas
Instruments designed especially for battery-powered
applications.

The OPAx369 operates on a supply voltage as low as

1.8V and has true rail-to-rail operation that makes it
useful for a wide range of applications. The
zero-crossover feature resolves the problem of input
crossover distortion that becomes very prominent in
low voltage (< 3V), rail-to-rail input applications.

In addition to microsize packages and very low
quiescent current (1 μ A, max) the OPAx369 features
12kHz bandwidth, low offset drift (1.75 μ V/ ° C, max),
and low 0.1Hz to 10Hz noise (3.6 μ V

The OPA369 (single version, available Q4 2007) is
offered in an SC70-5 package. The OPA2369 (dual
version) comes in both MSOP-8 and SOT23-8
packages.

hi laurie

).

PP

1

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.

2 All trademarks are the property of their respective owners.

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

Copyright © 2007, Texas Instruments Incorporated

www.ti.com

1

2

3

5

4

V+

OUT

+IN

V-

-IN

1

2

3

4

8

7

6

5

V+

OutB

-InB

+InB

OutA

-InA

+InA

V-

OPA369
OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 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.

ABSOLUTE MAXIMUM RATINGS

(1)

Over operating free-air temperature range (unless otherwise noted).

VALUE UNIT

Supply Voltage, VS= (V+) – (V – ) +7V V

(2)

Single Input
Terminals

Output Short-Circuit
Operating Temperature, T
Storage Temperature, T
Junction Temperature, T

Voltage

(2)

Current

(3)

A

A

J

Human Body Model (HBM) 4000 V

ESD Ratings Charged Device Model (CDM) 1000 V

Machine Model (MM) 200 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.

(2) Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5V beyond the supply rails should

be current limited to 10mA or less.

(3) Short-circuit to VS/2, one amplifier per package.

PACKAGE/ORDERING INFORMATION

PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR PACKAGE MARKING

OPA369 SC70-5

OPA2369

(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 .

(2) Available Q4, 2007.

(2)

MSOP-8 DGK OCCQ

SOT23-8 DCN OCBQ

– 0.5 to (V+) + 0.5 V

± 10 mA

Continuous
– 55 to +125 ° C
– 65 to +150 ° C

+150 ° C

(1)

DCK CJS

PIN CONFIGURATIONS

OPA369

(TOP VIEW)

(1) Available Q4, 2007.

2 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated

(1)

SC70-5

OPA2369

MSOP-8, SOT23-8

(TOP VIEW)

Product Folder Link(s): OPA369 OPA2369

www.ti.com

OPA369

OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

ELECTRICAL CHARACTERISTICS: V

= +1.8V to +5.5V

S

BOLDFACE limits apply over the specified temperature range, TA= – 40 ° C to +85 ° C.

At TA= +25 ° C, RL= 100k Ω connected to VS/2, unless otherwise noted.

(1)

OPA369

PARAMETER CONDITIONS MIN TYP MAX UNIT

OFFSET VOLTAGE

Input Offset Voltage V

OS

over Temperature 1 mV
Drift dV

/dT 0.4 1.75 μ V/ ° C

OS

vs Power Supply PSRR VS= 1.8V to 5.5V 5 20 μ V/V

Channel Separation dc 0.1 μ V/V

f = 1kHz 120 dB

INPUT VOLTAGE RANGE

Common-Mode Voltage Range V

CM

(V – ) (V+) V

Common-Mode Rejection Ratio CMRR (V – ) ≤ VCM≤ (V+) 100 114 dB

over Temperature (V – ) ≤ VCM≤ (V+) 90 dB

INPUT BIAS CURRENT

Input Bias Current I
Input Offset Current I

B

OS

INPUT IMPEDANCE

Differential
Common-Mode

NOISE

Input Voltage Noise f = 0.1Hz to 10Hz 3.6 μ V
Input Voltage Noise Density f = 100Hz 160 nV/ √ Hz

f = 1kHz 120 nV/ √ Hz

Current Noise Density f = 1kHz 1 fA/ √ Hz

OPEN-LOOP GAIN

Open-Loop Voltage Gain A

Over Temperature 100mV ≤ VO≤ (V+) – 100mV, RL=

Over Temperature 500mV ≤ VO≤ (V+) – 500mV, RL=

100mV ≤ VO≤ (V+) – 100mV, RL=

OL

100k Ω

100k Ω

500mV ≤ VO≤ (V+) – 500mV, RL=

114 134 dB

100 dB

10k Ω

10k Ω

114 134 dB

90 d B

OUTPUT
Voltage Output Swing from Rail RL= 100k Ω 10 mV

RL= 10k Ω 25 mV

Short-Circuit Current I
Capacitive Load Drive C

SC

LOAD

See Typical Characteristics pF

FREQUENCY RESPONSE

Gain-Bandwidth Product GBW 12 kHz
Slew Rate SR G = +1 0.005 V/ μ s
Overload Recovery Time VIN× Gain > V

S

POWER SUPPLY

Specified Voltage V
Quiescent Current

(per channel amplifier)

S

I

Q

I

= 0A 0.7 1 μ A

OUT

1.8 5.5 V

Over Temperature 1.25 μ A

(1) OPA369 specifications are preview. Available Q4, 2007.

, OPA2369

250 750 μ V

10 50 pA
10 50 pA

13

10

|| 3

13

10

|| 6

10 mA

250 μ s

Ω || pF
Ω || pF

PP

Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 3

Product Folder Link(s): OPA369 OPA2369

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OPA369
OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

ELECTRICAL CHARACTERISTICS: V

= +1.8V to +5.5V (continued)

S

BOLDFACE limits apply over the specified temperature range, TA= – 40 ° C to +85 ° C.

At TA= +25 ° C, RL= 100k Ω connected to VS/2, unless otherwise noted.

(1)

OPA369

PARAMETER CONDITIONS MIN TYP MAX UNIT

TEMPERATURE RANGE

Specified Range T
Operating Range T
Thermal Resistance θ

SC70 250 ° C/W
SOT23 223 ° C/W
MSOP 252 ° C/W

JA

A
A

– 40 +85 ° C
– 55 +125 ° C

, OPA2369

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Product Folder Link(s): OPA369 OPA2369

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Population

OffsetVoltage( V)m

-750

-

675

-600

-525

-450

-

375

-300

-225

-

150

-75

0

75

150

225

300

375

450

525

600

675

750

-1.2

Population

OffsetVoltageDrift( V/ C)m °

-1.1

-1.0

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1000

800

600

400

200

0

-200

-400

-600

-800

-1000

Temperature( C)°

OffsetVoltage( V)m

-75 100 125-50 -25 0 25 50 75

Normalized OffsetVoltage m( V)

100

80

60

40

20

0

-20

-40

-60

-80

-100

Common-ModeVoltage (V)

-0.2

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

4.4

4.6

4.8

5.0

5.2

V =5V

S

10TypicalUnitsShown

1m

V/div

Time(500ms/div)

10000

1000

100

10

Frequency(Hz)

V

oltageNoise,RTI(nV/ )

ÖHz

0.1 100101 1k

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

TYPICAL CHARACTERISTICS

At TA= +25 ° C, VS= 5V, RL= 100k Ω connected to VS/2, unless otherwise noted.

OFFSET VOLTAGE OFFSET VOLTAGE DRIFT

PRODUCTION DISTRIBUTION PRODUCTION DISTRIBUTION

Figure 1. Figure 2.

OPA369

OPA2369

OFFSET VOLTAGE vs TEMPERATURE vs COMMON-MODE VOLTAGE

NORMALIZED OFFSET VOLTAGE

Figure 3. Figure 4.

INPUT-REFERRED VOLTAGE NOISE

0.1Hz to 10Hz NOISE vs FREQUENCY

Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 5

Figure 5. Figure 6.

Product Folder Link(s): OPA369 OPA2369

www.ti.com

140

120

100

80

60

40

20

0

-20

Frequency(Hz)

Gain(dB)

0.001 100 1k100.1 10.01 20k10k

PHASE

GAIN

180

135

90

45

0

Phase( )

°

110

100

90

80

70

60

50

40

30

20

10

0

Frequency(Hz)

PSRR(dB)

1 1k 10k10010 20k

+PSRR

-PSRR

120

100

80

60

40

20

0

Frequency(Hz)

CMRR(dB)

10 10k1k100 20k

160

140

120

100

80

60

40

20

0

Frequency(Hz)

ChannelSeparation(dB)

100 10k1k 100k

20

15

10

5

0

-5

-10

-15

-20

Temperature( C)°

PSRR( V/V)m

-75 -50 -25 0 25 50 75 100 125

10TypicalUnitsShown

10

8

6

4

2

0

Temperature( C)°

CMRR( V/V)m

-75 100 125-50 -25 0 25 50 75

OPA369
OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

TYPICAL CHARACTERISTICS (continued)

At TA= +25 ° C, VS= 5V, RL= 100k Ω connected to VS/2, unless otherwise noted.

OPEN-LOOP GAIN AND PHASE POWER-SUPPLY REJECTION RATIO

vs FREQUENCY vs FREQUENCY

Figure 7. Figure 8.

COMMON-MODE REJECTION RATIO

vs FREQUENCY CHANNEL SEPARATION vs FREQUENCY

Figure 9. Figure 10.

COMMON-MODE REJECTION RATIO POWER-SUPPLY REJECTION RATIO

vs TEMPERATURE vs TEMPERATURE

6 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated

Figure 11. Figure 12.

Product Folder Link(s): OPA369 OPA2369

www.ti.com

3.0

2.5

2.0

1.5

1.0

0.5

0

Temperature( C)°

A ( V/V)m

OL

-75 -50 -25 0 25 50 75 100 125

R =10kW

L

R =100kW

L

25

20

15

10

5

0

-5

-10

-15

-20

-25

Temperature( C)°

OutputVoltageSwing-from-Rail(mV)

-75 100 125-50 -25 0 25 50 75

R =10kW

L

R =100kW

L

InputBiasCurrent(pA)

-50

10k

1k

100

10

1

0.1

0.01

Temperature( C)°

125-25 0 25 50 75 100

OutputVoltage(V)

0

2.75

2.25

1.75

1.25

0.75

0.25

-0.25

-0.75

-1.25

-1.75

-2.25

-2.75

OutputCurrent(mA)

455 3010 15 20 25 35 40

+115 C°

+85 C°

+25 C°

-40°C

V = 2.75V

S

±

2.0

1.5

1.0

0.5

0

Temperature( C)°

QuiescentCurrent(

A)m

-75 100-50 -25 0 25 50 75 125

3.0

2.5

2.0

1.5

1.0

0.5

0

Frequency(Hz)

MaximumV (V)

OUT

100 1k 2k

TYPICAL CHARACTERISTICS (continued)

At TA= +25 ° C, VS= 5V, RL= 100k Ω connected to VS/2, unless otherwise noted.

OPA369

OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

OPEN-LOOP GAIN vs TEMPERATURE vs TEMPERATURE

Figure 13. Figure 14.

INPUT BIAS CURRENT OUTPUT VOLTAGE

vs TEMPERATURE vs OUTPUT CURRENT

OUTPUT VOLTAGE SWING-FROM-RAIL

Figure 15. Figure 16.

QUIESCENT CURRENT vs TEMPERATURE vs FREQUENCY

Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 7

Figure 17. Figure 18.

MAXIMUM OUTPUT VOLTAGE

Product Folder Link(s): OPA369 OPA2369

www.ti.com

20mV/div

Time(100 s/div)m

C =20pF

L

50

40

30

20

10

0

CapacitiveLoad(pF)

Overshoot(%)

10 100 200

G=+1

500mV/div

Time(250 s/div)m

1V/div

Time(500 s/div)m

C =200pF

L

OPA369
OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

TYPICAL CHARACTERISTICS (continued)

At TA= +25 ° C, VS= 5V, RL= 100k Ω connected to VS/2, unless otherwise noted.

SMALL-SIGNAL OVERSHOOT

vs CAPACITIVE LOAD SMALL-SIGNAL STEP RESPONSE

Figure 19. Figure 20.

LARGE-SIGNAL STEP RESPONSE OVERLOAD RECOVERY

Figure 21. Figure 22.

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Product Folder Link(s): OPA369 OPA2369

www.ti.com

5kW

OPA369

10mAmax

+5V

V

IN

V

OUT

I

OVERLOAD

Current-limitingresistor
requiredifinputvoltage
exceedssupplyrailsby
³ 0.5V.

10 toW

20W

OPA369

V+

V

IN

V

OUT

R

S

R

L

C

L

The OPA369 family of operational amplifiers
minimizes power consumption and operates on
supply voltages as low as 1.8V. Power-supply
rejection ratio (PSRR), common-mode rejection ratio
(CMRR), and open-loop gain (A
in the range of 100dB or better.

When designing for ultralow power, choose system
components carefully. To minimize current
consumption, select large-value resistors. However,
note that large resistors will react with stray
capacitance in the circuit and the input capacitance of
the operational amplifier. These parasitic RC
combinations can affect the stability of the overall
system. A feedback capacitor may be required to
assure stability and limit overshoot or gain peaking.

Good layout practice and use of a 0.1 μ F bypass
capacitor placed closely across the supply pins are
mandatory.

OPERATING VOLTAGE

OPA369 series op amps are fully specified and tested
from +1.8V to +5.5V. Parameters that vary
significantly with supply voltage are shown in the

Typical Characteristic curves.

INPUT COMMON-MODE VOLTAGE RANGE

The OPA369 family is designed to eliminate the input
offset transition region typically present in most
rail-to-rail complementary stage operational
amplifiers, which allows the OPA369 family of
amplifiers to provide superior common-mode
performance over the entire input range.

The input common-mode voltage range of the
OPA369 family typically extends to each supply rail.
CMRR is specified from the negative rail to the
positive rail. See Figure 4 the Normalized Offset
Voltage vs Common-Mode Voltage.

PROTECTING INPUTS FROM OVER-VOLTAGE

Input currents are typically 10pA. However, large
inputs (greater than 500mV beyond the supply rails)
can cause excessive current to flow in or out of the
input pins. Therefore, in addition to keeping the input
voltage between the supply rails, it is also important
to limit the input current to less than 10mA. This
limiting is easily accomplished with an input resistor,
as shown in Figure 23 .

Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 9

OPA369

OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

APPLICATION INFORMATION

) typical values are

OL

Figure 23. Input Current Protection for Voltages

Exceeding the Supply Voltage

NOISE

Although micropower amplifiers frequently have high
wideband noise, the OPA369 series offers excellent
noise performance. The OPA369 has only 2.8 μ V

0.1Hz to 10Hz noise, and 80nV/ Hz of wideband
noise. Resistors should be chosen carefully, because
they can become the dominant source of noise.

CAPACITIVE LOAD AND STABILITY

Follower configurations with load capacitance in
excess of approximately 50pF can produce extra
overshoot and ringing in the output signal (see

Figure 19 ). Increasing the gain enhances the ability of

the amplifier to drive greater capacitive loads. In
unity-gain configurations, capacitive load drive can be
improved by inserting a small (10 Ω to 20 Ω ) resistor,
RS, in series with the output, as shown in Figure 24 .
This resistor significantly reduces ringing while
maintaining dc performance for purely capacitive
loads. However, if there is a resistive load in parallel
with the capacitive load, a voltage divider is created,
introducing a dc error at the output and slightly
reducing the output swing. The error introduced is
proportional to the ratio RS/R
negligible.

Figure 24. Series Resistor in Unity-Gain Buffer
Configuration Improves Capacitive Load Drive

Product Folder Link(s): OPA369 OPA2369

, and is generally

L

of

PP

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R =

F

V

REF

1000(I

BMAX

)

=

1.2V

1000(50pA)

= 24M 20MW W»

R =R

1

F

=20MW

V

HYST

V

BATT

=420kW

50mV

2.4V

R

I

OPA369

V

IN

V

OUT

RF

C

FB

C

IN

R =

2

-

V

THRS

V

BATT

1

R

1

1

( )

-

1

R

1

=

-

2V

1.2V 420kW´

1

420kW

1

( )

-

1

20MW

= 650kW

R =

BIAS

=0.9MW

V

BATTMIN

I

BIAS

=

1.8V

2 Am

REF1112

OPA369

+IN

OUT

-IN

V

STATUS

V

BATT

V

REF

R

1

R

2

R

BIAS

I

BIAS

R

F

+

OPA369
OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

In unity-gain inverter configuration, phase margin can 1. Selecting RF: Select R
be reduced by the reaction between the capacitance through R

is approximately 1000x larger than

F

at the op amp input and the gain setting resistors. the maximum bias current over temperature:
Best performance is achieved by using smaller
valued resistors. However, when larger valued
resistors cannot be avoided, a small (4pF to 6pF)
capacitor, C

, can be inserted in the feedback, as

FB

shown in Figure 25 . This configuration significantly
reduces overshoot by compensating the effect of
capacitance, C
capacitance and printed circuit board (PCB) parasitic
capacitance.

, which includes the amplifier input

IN

2. Choose the hysteresis voltage, V
battery-monitoring applications, 50mV is
adequate.

3. Calculate R

as follows:

1

4. Select a threshold voltage for V

2.0V

Figure 25. Improving Stability for Large R

5. Calculate R

and R

F

IN

as follows:

2

such that the current

F

(1)

. For

HYST

(2)

rising (V

IN

) =

THRS

BATTERY MONITORING

The low operating voltage and quiescent current of
the OPA369 series make it an excellent choice for
battery monitoring applications, as shown in

Figure 26 . In this circuit, V

STATUS

is high as long as
the battery voltage remains above 2V. A low-power
reference is used to set the trip point. Resistor values
are selected as follows:

10 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated

Figure 26. Battery Monitor

Product Folder Link(s): OPA369 OPA2369

6. Calculate R

: The minimum supply voltage for

BIAS

this circuit is 1.8V. The REF1112 has a current
requirement of 1.2 μ A (max). Providing the
REF1112 with 2 μ A of supply current assures
proper operation. Therefore:

(3)

(4)

www.ti.com

V =

H

R

2

R + R

1 2

V =

L

R

4

R + R

3 4

3V

A1

A2

D1

(2)

D2

(2)

R

5

10kW

R

6

5.1kW

R

7

5.1kW

R

IN

2kW

(1)

3V

3V

Q1

(3)

R

1

V

H

V

L

R

2

1/2

OPA2369

1/2

OPA2369

3V

V

OUT

V

IN

3V

R

3

R

4

NOTES: (1)R protectsA1andA2frompossibleexcesscurrentflow.

IN

(2)IN4446orequivalentdiodes.
(3)2N2222orequivalentNPNtransistor.

R

1

V

EX

V

OUT

V

REF

R

1

OPA369

R

R

R R

+5V

OPA369

OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

WINDOW COMPARATOR

Figure 27 shows the OPA2369 used as a window

comparator. The threshold limits are set by V
VL, with V
low. When V

> VL. When V

H

IN

<

, the output of A1 is

IN

>V

, the output of A2 is low.

L

VH

Therefore, both op amp outputs are at 0V as long as
V

is between V

IN

and VL. This configuration results

H

in no current flowing through either diode, Q1 in
cutoff, with the base voltage at 0V, and V
high.

H

forced

OUT

If V

falls below VL, the output of A2 is high, current

IN

flows through D2, and V

and

rises above VH, the output of A1 is high, current flows
through D1, and V

OUT

is low. The window comparator

is low. Likewise, if V

OUT

IN

threshold voltages are set as follows:

(5)

(6)

Figure 27. OPA2369 as a Window Comparator

ADDITIONAL APPLICATION EXAMPLES

Figure 28 through Figure 32 illustrate additional application examples.

Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 11

Figure 28. Single Op Amp Bridge Amplifier

Product Folder Link(s): OPA369 OPA2369

www.ti.com

R

3

R

2

V

IN

+2.7V

R

66.51W

C

1.5nF

1

C

1 F2m

VREF

A0+

REF3312

+2.7V

V

CC

V

SS

16-Bit

ADC

MSP430x20x3PW

OPA369

OPA369

Output

R

SHUNT

Load

V+

V+

R

G

R

L

R

(2)

1

10kW

R

BIAS

+5V

zener

(1)

Twozener

biasingmethods

areshown.

(3)

MOSFETratedto
stand-offsupplyvoltage
suchasBSS84for
upto50V.

(1)Zenerratedforopampsupplycapability(thatis,5.1VforOPA369).
(2)Current-limitingresistor.
(3)ChoosezenerbiasingresistorordualNMOSFETs(FDG6301N,NTJD4001N,orSi1034)

NOTES:

NOTE:1%resistorsprovideadequatecommon-moderejectionatsmallground-looperrors.

OPA369

ADS1100

Load

V

I C

2

R

1

4.99kW

R

3

4.99kW

R

4

48.7kW

R

2

49.9kW

+5V

3V

REF3130

R

7

1.18kW

R

SHUNT

1W

R

6

71.5kW

R

N

56W

R

N

56W

(PGAGain=4)
FS=3.0V

StrayGround-LoopResistance

I

LOAD

OPA369
OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

Figure 29. Unipolar Signal Chain Configuration

Figure 30. High-Side Current Monitor

12 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated

Figure 31. Low-Side Current Monitor

Product Folder Link(s): OPA369 OPA2369

www.ti.com

R

2

V = (V - V )1+++V

OUT 1 2 REF

R

1

R

2

R

G

R

2

R

1

V

REF

V

OUT

V

2

V

1

R

1

1/2

OPA2369

1/2

OPA2369

2R

1

R

G

Figure 32. Two Op Amp Instrumentation Amplifier

OPA369

OPA2369

SBOS414A – AUGUST 2007 – REVISED SEPTEMBER 2007

Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 13

Product Folder Link(s): OPA369 OPA2369

PACKAGE OPTION ADDENDUM

www.ti.com

27-Aug-2007

PACKAGING INFORMATION

Orderable Device Status

(1)

Package

Type

Package

Drawing

Pins Package

Qty

Eco Plan

OPA2369AIDCNR PREVIEW SOT-23 DCN 8 3000 TBD Call TI Call TI

OPA2369AIDCNT PREVIEW SOT-23 DCN 8 250 TBD Call TI Call TI

OPA2369AIDGKR PREVIEW MSOP DGK 8 2500 TBD Call TI Call TI

OPA2369AIDGKT PREVIEW MSOP DGK 8 250 TBD Call TI Call TI

OPA369AIDCKR PREVIEW SC70 DCK 5 3000 TBD Call TI Call TI
OPA369AIDCKT PREVIEW SC70 DCK 5 250 TBD Call TI Call TI

(1)

The marketing status values are defined as follows:

ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in

a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.

(2)

Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check

http://www.ti.com/productcontent for the latest availability information and additional product content details.

TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements

for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)

(2)

Lead/Ball Finish MSL Peak Temp

(3)

(3)

MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder

temperature.

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Addendum-Page 1

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