Burr-Brown INA270 Voltage output, unidirectional measurement current-shunt monitor Datasheet

 INA270
INA271
IN
A2
70
IN
A2
71
SBOS381A – FEBRUARY 2007 – REVISED APRIL 2007
Voltage Output, Unidirectional Measurement
Current-Shunt Monitor
FEATURES
•
•
•
•
•
•
•
•
WIDE COMMON-MODE RANGE: –16V to +80V
CMRR: 120dB
ACCURACY:
±2.5mV offset (max)
±1% gain error (max)
20µV/°C offset drift (max)
55ppm/°C gain drift (max)
BANDWIDTH: Up to 130kHz
TWO TRANSFER FUNCTIONS AVAILABLE:
14V/V (INA270)
20V/V (INA271)
QUIESCENT CURRENT: 900µA (max)
POWER SUPPLY: +2.7V to +18V
PROVISION FOR FILTERING
DESCRIPTION
The INA270 and INA271 family of current-shunt
monitors with voltage output can sense drops across
current shunts at common-mode voltages from –16V
to +80V, independent of the supply voltage. The
INA270 and INA271 pinouts readily enable filtering.
The INA270 and INA271 are available with two
output voltage scales: 14V/V and 20V/V. The 130kHz
bandwidth simplifies use in current-control loops.
The INA270 and INA271 operate from a single +2.7V
to +18V supply, drawing a maximum of 900µA of
supply current. They are specified over the extended
operating temperature range of –40°C to +125°C and
are offered in an SO-8 package.
RS
-16V to +80V
Supply
Load
Single-Pole Filter
Capacitor
APPLICATIONS
•
•
•
•
•
•
•
POWER MANAGEMENT
AUTOMOTIVE
TELECOM EQUIPMENT
NOTEBOOK COMPUTERS
BATTERY CHARGERS
CELL PHONES
WELDING EQUIPMENT
+2.7V to +18V
IN+
PRE OUT
IN5kW
BUF IN
V+
5kW
OUT
A1
96kW
A2
RL
INA270
GND
DEVICE COMPARISON
DEVICE
GAIN
INA270
14V/V
INA271
20V/V
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.
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
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INA271
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SBOS381A – FEBRUARY 2007 – REVISED APRIL 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)
(1)
PRODUCT
PACKAGE-LEAD
PACKAGE
DESIGNATOR
GAIN
PACKAGE
MARKING
INA270
SO-8
D
14
I270A
INA271
SO-8
D
20
I271A
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.
ABSOLUTE MAXIMUM RATINGS (1)
INA270, INA271
UNIT
+18
V
Differential, (VIN+) – (VIN–)
–18 to +18
V
Common-Mode
–16 to +80
V
Supply Voltage (VS)
Analog Inputs, VIN+, VIN–:
Analog Output:
OUT and PRE OUT Pins
GND – 0.3 to (V+) + 0.3
V
5
mA
Operating Temperature
–55 to +150
°C
Storage Temperature
–65 to +150
°C
Junction Temperature
+150
°C
Human Body Model
3000
V
Charged-Device Model
750
V
Input Current Into Any Pin
ESD Ratings:
(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.
PIN CONFIGURATION
SO-8
Top View
IN-
1
GND
2
8
IN+
7
NC
(1)
INA27x
PRE OUT
3
6
V+
BUF IN
4
5
OUT
NOTE (1): NC denotes no internal connection.
2
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ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range: TA = –40°C to +125°C.
At TA = +25°C, VS = +5V, VCM = +12V, VSENSE = 100mV, and PRE OUT connected to BUF IN, unless otherwise noted.
INA270, INA271
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
0.15
(VS – 0.2)/Gain
V
INPUT
Full-Scale Input Voltage
Common-Mode Input Range
Common-Mode Rejection Ratio
VSENSE
VCM
CMRR
Over Temperature
Offset Voltage, RTI (1)
VSENSE = (VIN+) + (VIN–)
–16
VIN+ = –16V to +80V
80
VIN+ = +12V to +80V
100
+80
120
120
vs Power-Supply
Input Bias Current, VIN– Pin
dB
VOS
±0.5
2.5
±3
mV
dVOS/dT
2.5
20
µV/°C
5
100
µV/V
±8
±16
µA
Over Temperature
vs Temperature
V
dB
PSR
VS = +2.7V to +18V, VCM = +18V
IB
mV
PRE OUT Output Impedance (2)
96
kΩ
Buffer Input Bias Current
–50
nA
±0.03
nA/°C
Buffer Input Bias Current Temperature
Coefficient
OUTPUT (VSENSE ≥ 20mV) (3)
Gain: INA270 Total Gain
G
14
V/V
Gain: INA271 Total Gain
G
20
V/V
GBUF
2
Output Buffer Gain
Total Gain Error
VSENSE = 20mV to 100mV
±0.2
%
50
ppm/°C
±0.75
±2.2
%
±1.0
±3.0
%
vs Temperature
VSENSE = 20mV to 100mV
Total Output Error
Nonlinearity Error
Output Impedance, Pin 5
VSENSE = 20mV to 100mV
RO
Maximum Capacitive Load
No Sustained Oscillation
VOLTAGE OUTPUT (5)
%
±2
Over Temperature
Total Output Error (4)
V/V
±1
±0.002
%
1.5
Ω
10
nF
RL = 10kΩ to GND
Swing to V+ Power-Supply Rail
Swing to GND (6)
(V+) – 0.05
(V+) – 0.2
V
VGND + 0.003
VGND + 0.05
V
FREQUENCY RESPONSE
Bandwidth
BW
Phase Margin
Slew Rate
Settling Time (1%)
(1)
(2)
(3)
(4)
(5)
(6)
CLOAD = 5pF
130
kHz
CLOAD < 10nF
40
degrees
1
V/µs
2
µs
SR
tS
VSENSE = 10mV to 100mVPP,
CLOAD = 5pF
RTI means Referred-to-Input.
Initial resistor variation is ±30% with an additional –2200ppm/°C temperature coefficient.
For output behavior when VSENSE < 20mV, see the Application Information section Accuracy Variations as A Result of VSENSE and
Common-Mode Voltage.
Total output error includes effects of gain error and VOS.
See typical characteristic curve Output Swing vs Output Current and Application Information section Accuracy Variations as A Result of
VSENSE and Common-Mode Voltage.
Ensured by design; not production tested.
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ELECTRICAL CHARACTERISTICS (continued)
Boldface limits apply over the specified temperature range: TA = –40°C to +125°C.
At TA = +25°C, VS = +5V, VCM = +12V, VSENSE = 100mV, and PRE OUT connected to BUF IN, unless otherwise noted.
INA270, INA271
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
NOISE, RTI (7)
Voltage Noise Density
en
40
nV/√Hz
POWER SUPPLY
Operating Range
VS
Quiescent Current
IQ
Over Temperature
+18
V
VOUT = 2V
+2.7
700
900
µA
VSENSE = 0mV
350
950
µA
TEMPERATURE RANGE
Specified Temperature Range
–40
+125
°C
Operating Temperature Range
–55
+150
°C
Thermal Resistance
θJA
SO-8
(7)
4
+150
RTI means Referred-to-Input.
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TYPICAL CHARACTERISTICS
At TA = +25°C, VS = +12V, VCM = 12V, and VSENSE = 100mV, unless otherwise noted.
GAIN vs FREQUENCY
GAIN vs FREQUENCY
45
CLOAD = 1000pF
40
40
35
35
30
Gain (dB)
Gain (dB)
45
G = 20
25
G = 14
20
G = 20
25
G = 14
20
15
10
10
5
10k
18
100k
10k
1M
Figure 1.
Figure 2.
GAIN PLOT
COMMON-MODE AND POWER-SUPPLY REJECTION
vs FREQUENCY
140
130
16
14
20V/V
12
10
8
14V/V
6
4
120
100
90
70
60
1300
1200
1000
1100
800
900
600
700
400
40
500
50
200
PSR
80
0
300
CMRR
110
2
100
1M
Frequency (Hz)
VS = 18V
0
100k
Frequency (Hz)
Common-Mode and
Power-Supply Rejection (dB)
20
VOUT (V)
30
15
5
CLOAD = 0pF
10
100
1k
10k
100k
Frequency (Hz)
Figure 3.
Figure 4.
TOTAL OUTPUT ERROR vs VSENSE
OUTPUT ERROR vs COMMON-MODE VOLTAGE
4.0
0.10
3.5
0.09
0.08
3.0
Output Error (%)
Total Output Error
(% error of the ideal output value)
VSENSE (mV)
2.5
2.0
1.5
1.0
0.07
0.06
0.05
0.04
0.03
0.02
0.5
0.01
0
0
50
100 150
200
250 300
350 400 450 500
0
-16 -12 -8 -4
VSENSE (mV)
0
4
8
12 16 20
...
76 80
Common-Mode Voltage (V)
Figure 5.
Figure 6.
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TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VS = +12V, VCM = 12V, and VSENSE = 100mV, unless otherwise noted.
POSITIVE OUTPUT VOLTAGE SWING
vs OUTPUT CURRENT
QUIESCENT CURRENT
vs OUTPUT VOLTAGE
1000
12
11
800
Sourcing Current
9
+25°C
8
700
-40°C
+125°C
7
6
IQ (mA)
Output Voltage (V)
900
VS = 12V
10
VS = 3V
5
Sourcing Current
+25°C
4
-40°C
2
1
+125°C
0
0
500
400
300
Output stage is designed
to source current. Current
sinking capability is
approximately 400mA.
3
600
200
100
0
5
10
20
15
25
30
0
2
1
3
4
Output Current (mA)
QUIESCENT CURRENT
vs COMMON-MODE VOLTAGE
OUTPUT SHORT-CIRCUIT CURRENT
vs SUPPLY VOLTAGE
34
VSENSE = 100mV:
VS = 12V
VS = 2.7V
675
IQ (mA)
8
Figure 8.
775
575
475
VS = 12V
375
7
6
Figure 7.
VSENSE = 0mV:
VS = 2.7V
275
Output Short-Circuit Current (mA)
875
5
9
10
Output Voltage (V)
175
-40°C
30
+25°C
26
+125°C
22
18
14
10
6
-16 -12 -8 -4
0
4
8
12 16
20
...
76 80
2.5 3.5
4.5
5.5 6.5
7.5
8.5
9.5 10.5 11.5 17
VCM (V)
Supply Voltage (V)
Figure 9.
Figure 10.
PREOUT OUTPUT RESISTANCE
PRODUCTION DISTRIBUTION
18
BUFFER GAIN vs FREQUENCY
200
150
Gain (dB)
Population
Phase
100
50
Gain
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
0
-50
10
1k
10k
100k
Frequency (Hz)
RPREOUT (kW)
Figure 11.
6
100
Figure 12.
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10M
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TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VS = +12V, VCM = 12V, and VSENSE = 100mV, unless otherwise noted.
LARGE-SIGNAL STEP RESPONSE
10mV TO 100mV INPUT
50mV/div
500mV/div
SMALL-SIGNAL STEP RESPONSE
10mV TO 20mV INPUT
10ms/div
10ms/div
Figure 13.
Figure 14.
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APPLICATIONS INFORMATION
BASIC CONNECTION
POWER SUPPLY
Figure 15 shows the basic connection of the INA270
and INA271. The input pins, IN+ and IN–, should be
connected as closely as possible to the shunt
resistor to minimize any resistance in series with the
shunt resistance.
The input circuitry of the INA270 and INA271 can
accurately measure beyond its power-supply voltage,
V+. For example, the V+ power supply can be 5V,
whereas the load power-supply voltage is up to
+80V. The output voltage range of the OUT terminal,
however, is limited by the voltages on the
power-supply pin.
Power-supply bypass capacitors are required for
stability. Applications with noisy or high-impedance
power supplies may require additional decoupling
capacitors to reject power-supply noise. Minimum
bypass capacitors of 0.01µF and 0.1µF in value
should be placed close to the supply pins. Although
not mandatory, an additional 10mF electrolytic
capacitor placed in parallel with the other bypass
capacitors may be useful in applications with
particularly noisy supplies.
SELECTING RS
The value chosen for the shunt resistor, RS, depends
on the application and is a compromise between
small-signal accuracy and maximum permissible
voltage loss in the measurement line. High values of
RS provide better accuracy at lower currents by
minimizing the effects of offset, while low values of
RS minimize voltage loss in the supply line. For most
applications, best performance is attained with an RS
value that provides a full-scale shunt voltage range
of 50mV to 100mV. Maximum input voltage for
accurate measurements is (VS – 0.2)/Gain.
RS
-16V to +80V
Supply
Load
Single-Pole Filter
Capacitor
+2.7V to +18V
IN+
PRE OUT
IN5kW
BUF IN
5kW
OUT
A1
96kW
A2
RL
INA270
GND
Figure 15. INA270 Basic Connections
8
0.01mF
V+
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TRANSIENT PROTECTION
Despite the use of internal zener-type ESD
protection, the INA270 and INA271 are not suited to
using external resistors in series with the inputs since
the internal gain resistors can vary up to ±30%, but
are tightly matched (if gain accuracy is not important,
then resistors can be added in series with the
INA270 and INA271 inputs with two equal resistors
on each input).
The –16V to +80V common-mode range of the
INA270 and INA271 is ideal for withstanding
automotive fault conditions ranging from 12V battery
reversal up to +80V transients, since no additional
protective components are needed up to those
levels. In the event that the INA270 and INA271 are
exposed to transients on the inputs in excess of their
ratings,
external
transient
absorption
with
semiconductor transient absorbers (zeners or
Transzorbs) will be necessary.
OUTPUT VOLTAGE RANGE
The output of the INA270 and INA271 is accurate
within the output voltage swing range set by the
power-supply pin, V+.
Use of MOVs or VDRs is not recommended except
when they are used in addition to a semiconductor
transient absorber. Select the transient absorber
such that it will never allow the INA270 and INA271
to be exposed to transients greater than 80V (that is,
allow for transient absorber tolerance, as well as
additional voltage because of transient absorber
dynamic impedance).
The INA270 and INA271 readily enable the inclusion
of filtering between the preamp output and buffer
input. Single-pole filtering can be accomplished with
a single capacitor because of the 96kΩ output
impedance at PRE OUT on pin 3, as shown in
Figure 16a.
The INA270 and INA271 readily lend themselves to
second-order Sallen-Key configurations, as shown in
Figure 16b. When designing these configurations
consider that the PRE OUT 96kΩ output impedance
exhibits an initial variation of ±30% with the addition
of a –2200ppm/°C temperature coefficient.
RS
Load
Supply
RS
Load
Supply
Second-Order, Sallen-Key Filter Connection
CFILT
Single-Pole Filter
Capacitor
CFILT
RS
+2.7V to +18V
IN+
PRE OUT
IN5kW
BUF IN
+2.7V to +18V
V+
IN+
5kW
5kW
Output
A1
BUF IN
V+
5kW
A1
96kW
A2
PRE OUT
IN-
Output
96kW
A2
RL
RL
INA270
INA270
GND
a) Single-Pole Filter
GND
b) Second-Order, Sallen-Key Filter
Figure 16. The INA270–INA271 can be easily connected for first- or second-order filtering. Remember to
use the appropriate buffer gain (INA270 = 1.4, INA271 = 2) when designing Sallen-Key configurations.
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ACCURACY VARIATIONS AS A RESULT OF
VSENSE AND COMMON-MODE VOLTAGE
The accuracy of the INA270 and INA271 current
shunt monitors is a function of two main variables:
VSENSE (VIN+ – VIN–) and common-mode voltage,
VCM, relative to the supply voltage, VS. VCM is
expressed as (VIN+ + VIN–)/2; however, in practice,
VCM is seen as the voltage at VIN+ because the
voltage drop across VSENSE is usually small.
Normal Case 2: VSENSE ≥ 20mV, VCM < VS
This region of operation has slightly less accuracy
than Normal Case 1 as a result of the common-mode
operating area in which the part functions, as seen in
the Output Error vs Common-Mode Voltage curve
(Figure 6). As noted, for this graph VS = 12V; for VCM
< 12V, the Output Error increases as VCM becomes
less than 12V, with a typical maximum error of
0.005% at the most negative VCM = –16V.
This section addresses the accuracy of these
specific operating regions:
Normal Case 1: VSENSE ≥ 20mV, VCM ≥ VS
Normal Case 2: VSENSE ≥ 20mV, VCM < VS
Low VSENSE Case 1:
VSENSE < 20mV, –16V ≤ VCM < 0
Low VSENSE Case 2:
VSENSE < 20mV, 0V ≤ VCM ≤ VS
Low VSENSE Case 3:
VSENSE < 20mV, VS < VCM ≤ 80V
Low
VSENSE
Case
1:
VSENSE < 20mV, –16V ≤ VCM < 0; and
Low VSENSE Case 3:
VSENSE < 20mV, VS < VCM ≤ 80V
Normal Case 1: VSENSE ≥ 20mV, VCM ≥ VS
As VSENSE approaches 0mV, in these VCM regions,
the
device
output
accuracy
degrades.
A
larger-than-normal offset can appear at the current
shunt monitor output with a typical maximum value of
VOUT = 60mV for VSENSE = 0mV. As VSENSE
approaches 20mV, VOUT returns to the expected
output value with accuracy as specified in the
Electrical Characteristics. Figure 17 shows this effect
using the INA271 (Gain = 20).
the highest
voltage is
a two-step
Equation 1.
(1)
where:
VOUT1 = Output Voltage with VSENSE = 100mV
VOUT2 = Output Voltage with VSENSE = 20mV
2.0
1.8
Then the offset voltage is measured at VSENSE =
100mV and referred to the input (RTI) of the current
shunt monitor, as shown in Equation 2.
VOUT1
VOSRTI (Referred-To-Input) =
- 100mV
G
1.6
1.4
VOUT (V)
This region of operation provides
accuracy. Here, the input offset
characterized and measured using
method. First, the gain is determined by
VOUT1 - VOUT2
G=
100mV - 20mV
Although the INA270 family of devices are not
designed for accurate operation in either of these
regions, some applications are exposed to these
conditions. For example, when monitoring power
supplies that are switched on and off while VS is still
applied to the INA270 or INA271, it is important to
know what the behavior of the devices will be in
these regions.
1.2
0.8
(2)
0.6
In the Typical Characteristics, the Output Error vs
Common-Mode Voltage curve (Figure 6) shows the
highest accuracy for the this region of operation. In
this plot, VS = 12V; for VCM ≥ 12V, the output error is
at its minimum. This case is also used to create the
VSENSE ≥ 20mV output specifications in the Electrical
Characteristics table.
0.4
10
Actual
1.0
Ideal
0.2
0
0
2
4
6
8
10
12
14
16
18
20
VSENSE (mV)
Figure 17. Example for Low VSENSE Cases 1 and 3
(INA271, Gain = 20)
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Low VSENSE Case 2: VSENSE < 20mV, 0V ≤ VCM ≤ VS
SHUTDOWN
This region of operation is the least accurate for the
INA270 family. To achieve the wide input
common-mode voltage range, these devices use two
op amp front ends in parallel. One op amp front end
operates in the positive input common-mode voltage
range, and the other in the negative input region. For
this case, neither of these two internal amplifiers
dominates and overall loop gain is very low. Within
this region, VOUT approaches voltages close to linear
operation levels for Normal Case 2.
The INA270 and INA271 do not provide a shutdown
pin; however, because they consume a quiescent
current less than 1mA, they can be powered by
either the output of logic gates or by transistor
switches to supply power. Driving the gate low shuts
down the INA270–INA271. Use a totem-pole output
buffer or gate that can provide sufficient drive along
with 0.1µF bypass capacitor, preferably ceramic with
good high-frequency characteristics. This gate
should have a supply voltage of 3V or greater
because the INA270 and INA271 require a minimum
supply greater than 2.7V. In addition to eliminating
quiescent current, this gate also turns off the 10µA
bias current present at each of the inputs. Note that
the IN+ and IN– inputs are able to withstand full
common-mode voltage under all powered and
under-powered conditions. An example shutdown
circuit is illustrated in Figure 19.
This deviation from linear operation becomes
greatest the closer VSENSE approaches 0V. Within
this region, as VSENSE approaches 20mV, device
operation is closer to that described by Normal Case
2. Figure 18 illustrates this behavior for the INA271.
The VOUT maximum peak for this case is determined
by maintaining a constant VS, setting VSENSE = 0mV,
and sweeping VCM from 0V to VS. The exact VCM at
which VOUT peaks during this case varies from part to
part. The maximum peak voltage for the INA270 is
0.28V; for the INA271, the maximum peak voltage is
0.4V.
0.48
0.48 INA271 VOUT Limit
(1)
VCM1
0.40
Ideal
0.36
VCM2
VOUT (V)
0.32
0.28
VCM3
0.24
0.20
0.16
VOUT limit at VSENSE = 0mV,
0 £ VCM1 £ VS
VCM4
0.12
VCM2, VCM3, and VCM4 illustrate the variance
from part to part of the VCM that can cause
maximum VOUT with VSENSE < 20mV.
0.08
0.04
0
0
2
4
6
8
10
12
14
16
18
20
22
VSENSE (mV)
NOTE: (1) INA271 VOUT Limit = 0.4V. INA270 VOUT Limit = 0.28V.
24
RFI/EMI
Attention to good layout practices is always
recommended. Keep traces short and, when
possible, use a printed circuit board (PCB) ground
plane with surface-mount components placed as
close to the device pins as possible. Small ceramic
capacitors placed directly across amplifier inputs can
reduce RFI/EMI sensitivity. PCB layout should locate
the amplifier as far away as possible from RFI
sources. Sources can include other components in
the same system as the amplifier itself, such as
inductors (particularly switched inductors handling a
lot of current and at high frequencies). RFI can
generally be identified as a variation in offset voltage
or dc signal levels with changes in the interfering RF
signal. If the amplifier cannot be located away from
sources of radiation, shielding may be needed.
Twisting wire input leads makes them more resistant
to RF fields. The difference in input pin location of
the INA270 and INA271 versus the INA193–INA198
may provide different EMI performance.
Figure 18. Example for Low VSENSE Case 2
(INA271, Gain = 20)
Submit Documentation Feedback
11
INA270
INA271
www.ti.com
SBOS381A – FEBRUARY 2007 – REVISED APRIL 2007
IL
RS
-16V to +80V
Supply
Single-Pole Filter
Capacitor
IN+
Negative
and
Positive
Common-Mode
Voltage
PRE OUT
IN5kW
Load
BUF IN
V+
5kW
V+ > 3V
OUT
A1
74HC04
0.1mF
96kW
A2
RL
INA270, INA271
GND
Figure 19. INA270–INA271 Example Shutdown Circuit
12
Submit Documentation Feedback
PACKAGE OPTION ADDENDUM
www.ti.com
7-May-2007
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
INA270AID
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
INA270AIDG4
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
INA270AIDR
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
INA270AIDRG4
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
INA271AID
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
INA271AIDG4
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
INA271AIDR
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
INA271AIDRG4
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
Lead/Ball Finish
MSL Peak Temp (3)
(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)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
7-May-2007
TAPE AND REEL INFORMATION
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
Device
7-May-2007
Package Pins
Site
Reel
Diameter
(mm)
Reel
Width
(mm)
A0 (mm)
B0 (mm)
K0 (mm)
P1
(mm)
W
Pin1
(mm) Quadrant
INA270AIDR
D
8
TAI
330
12
6.4
5.2
2.1
8
12
NONE
INA271AIDR
D
8
TAI
330
12
6.4
5.2
2.1
8
12
NONE
TAPE AND REEL BOX INFORMATION
Device
Package
Pins
Site
Length (mm)
Width (mm)
Height (mm)
INA270AIDR
D
8
TAI
346.0
346.0
29.0
INA271AIDR
D
8
TAI
346.0
346.0
29.0
Pack Materials-Page 2
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