REF-01/REF-02
Precision
Voltage References
FEATURES
■
■
■
■
■
■
DESCRIPTIO
Trimmed Output
±0.3%
Low Drift—5ppm/°C Typ
Low Noise—3ppm
(P-P)
High Line Rejection
Temperature Output—REF-02
Low Supply Current 1.4mA Max
APPLICATIO S
■
■
■
■
■
The REF-01/REF-02 are precision 10V and 5V bandgap
references which provide stable output voltages over a
wide range of operating conditions. Output voltage is
accurate to
±0.3%
with a low 5ppm/°C typical temperature
coefficient. The REF-01 and REF-02 are excellent choices
for applications where low drift, moderate accuracy, low
power consumption and low cost are considerations.
The REF-02 includes a temperature output pin which
provides a linear voltage proportional to absolute tem-
perature.
For lower drift and higher accuracy references, please see
the LT1019 and LT1021 data sheets.
, LTC and LT are registered trademarks of Linear Technology Corporation.
A/D and D/A Converters
Precision Regulators
Constant Current Sources
V/F Converters
Bridge Excitation
TYPICAL APPLICATIO
Ultra Linear Strain Gauge Amplifier
15V
412Ω*
1/2W
REF-02
IN
OUT
GND
5V
350Ω
BRIDGE
A1
†
LT307
R2
20k
R4
20k
R3
2M
Output Voltage Temperature Drift
1.003
OUTPUT VOLTAGE (NORMALIZED)
–
A2
LT1001
GAIN = 100
+
R6
2M**
TA01a
ACTIVE
ELEMENT
R5
2M
–5V
*REDUCES REFERENCE AND AMPLIFIER LOADING.
**IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.
†
A1 V
OS
AND DRIFT ARE NOT CRITICAL.
357Ω*
1/2W
–15V
U
1.002
1.001
1.000
0.999
0.998
FULL TEMP RANGE BOX GUARANTEED FOR
REF-01A AND REF-02A (8.5ppm/°C)
50
25
75
0
TEMPERATURE (°C)
100
125
TA01b
U
–
+
U
0°C TO 70°C BOX GUARANTEED FOR
REF-01E AND REF-02E (8.5ppm/°C)
0.997
–50 –25
1
REF-01/REF-02
ABSOLUTE
AXI U RATI GS
REF-01/REF-02 A, E, H ............................................ 40V
REF-01C/REF-02C ................................................... 30V
Power Dissipation .............................................. 500mW
Output Short-Circuit Duration
To Ground ................................................... Indefinite
To V
IN
≤
16V ............................................... Indefinite
To V
IN
> 16V ............................................Not Allowed
PACKAGE/ORDER I FOR ATIO
TOP VIEW
NC*
8
NC* 1
INPUT 2
TEMP** 3
7 NC*
6 OUTPUT
5 TRIM
4
ORDER PART
NUMBER
REF01AH
REF01H
REF01EH
REF01HH
REF01CH
REF02AH
REF02H
REF02EH
REF02HH
REF02CH
REF02DH
GND (CASE)
H PACKAGE
8-LEAD TO-5 METAL CAN
T
JMAX
= 150°C,
θ
JA
= 150°C/W,
θ
JC
= 45°C/W
*INTERNALLY CONNECTED. DO
NOT CONNECT EXTERNALLY.
**DO NOT CONNECT ON REF-01
OBSOLETE PACKAGE
Consider the N Package for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
V
O
Output Voltage
Output Adjustment Range
e
nP-P
V
IN
∆V
OUT
∆V
IN
∆V
OUT
∆I
OUT
I
Q
I
OUT
I
SC
V
T
Output Voltage Noise
Input Voltage Range
Line Regulation
(Note 2)
Load Regulation
(Note 2)
Quiescent Supply Current
Load Current
Sink Current
Short-Circuit Current
Temperature Voltage Output
V
O
= 0V
(Note 3)
(V
OUT
+ 3V)
≤
V
IN
≤
33V
I
L
= 0mA to 10mA
No Load
CONDITIONS
I
L
= 0mA
R
P
= 10kΩ
V
IN
= 15V, T
A
= 25°C unless otherwise noted.
REF-01A/E, REF-02A/E
MIN
TYP
MAX
REF-01
REF-02
REF-01
REF-02
9.97
4.985
±3
±3
10
5
5, –27
5, –13
20
10
12
7
0.0001
REF-01
REF-02
10
–0.3
REF-02 Only
0.0005
0.0010
0.65
20
–20
25
620
40
40
0.010
0.008
0.010
1.4
10
–0.3
12
7
0.0001
0.0005
0.001
0.65
20
–20
25
620
10.03
5.015
REF-01H, REF-02H
MIN
TYP
MAX
9.95
4.975
±3
±3
10
5
5, –27
5, –13
20
10
40
40
0.010
0.010
0.010
1.4
10.05
5.025
UNITS
V
V
%
%
µV
P-P
µV
P-P
V
V
%/V
%/mA
%/mA
mA
mA
mA
mA
mV
0.1Hz to 10Hz (Note 7) REF-01
REF-02
REF-01
REF-02
2
U
U
W
W W
U
W
(Note 1)
Storage Temperature Range ................. – 65°C to 150°C
Operating Temperature
REF-01/REF-02, REF-01A/REF-02A ...–55°C to 125°C
REF-01E/REF-02E, REF-01H/REF-02H,
REF-01C/REF-02C, REF-01D/REF-02D .... 0°C to 70°C
Lead Temperature (Soldering, 10 sec).................. 300°C
TOP VIEW
NC* 1
INPUT 2
TEMP** 3
GND 4
8
7
6
5
NC*
NC*
OUTPUT
TRIM
ORDER PART
NUMBER
REF01EN8
REF01HN8
REF01CN8
REF01EJ8
REF01HJ8
REF01CJ8
REF02EN8
REF02HN8
REF02CN8
REF02DN8
REF02EJ8
REF02HJ8
REF02CJ8
REF02DJ8
N8 PACKAGE
8-LEAD PDIP
T
JMAX
= 100°C,
θ
JA
= 130°C/W
*INTERNALLY CONNECTED. DO
NOT CONNECT EXTERNALLY.
**DO NOT CONNECT ON REF-01
J8 PACKAGE
8-LEAD CERDIP
T
JMAX
= 150°C,
θ
JA
= 100°C/W
OBSOLETE PACKAGE
Consider the N Package for Alternate Source
REF-01/REF-02
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
V
O
Output Voltage
Output Adjustment Range
e
nP-P
∆V
OUT
∆V
IN
∆V
OUT
∆I
OUT
I
Q
I
OUT
I
SC
V
T
Output Voltage Noise
Line Regulation
(Note 2)
Load Regulation
(Note 2)
Quiescent Supply Current
Load Current
Sink Current
Short-Circuit Current
Temperature Voltage Output
V
O
= 0V
(Note 3)
CONDITIONS
I
L
= 0mA
R
P
= 10kΩ
V
IN
= 15V, T
A
= 25°C unless otherwise noted.
REF-01C, REF-02C
MIN
TYP
MAX
REF-01
REF-02
REF-01
REF-02
9.9
4.95
±2.7
10
5
5, –27
5, –13
30
12
0.0001
0.0005
0.65
8
–0.2
REF-02 Only
20
20
25
620
0.015
0.015
0.001
1.6
8
–0.2
0.65
20
20
25
620
0.04
2
10.1
5.05
MIN
4.9
±2
REF-02D
TYP
5
5, –13
12
0.0001
0.04
MAX
5.1
UNITS
V
V
%
%
µV
P-P
µV
P-P
%/V
%/mA
%/mA
mA
mA
mA
mA
mV
0.1Hz to 10Hz (Note 7) REF-01
REF-02
(V
OUT
+ 3V)
≤
V
IN
≤
33V
I
L
= 0mA to 8mA
I
L
= 0mA to 4mA
No Load
The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
IN
= 15V, –55°C
≤
T
A
≤
±125°C
for REF-01A/REF-02A and REF-01/REF-02, 0°C
≤
T
A
≤
70°C for REF-01E/REF-02E and
REF-01H/REF-02H, I
L
= 0mA unless otherwise noted.
SYMBOL PARAMETER
∆V
∆T
TC
Output Voltage Change with
Temperature (Notes 4, 5)
Output Voltage Temperature
Coefficient
Change in V
O
Temperature
Coefficient with Output
Adjustment
∆V
OUT
∆V
IN
∆V
OUT
∆I
OUT
Line Regulation
(V
OUT
+ 3V)
≤
V
IN
≤
33V (Note 2)
Load Regulation
(I
L
= 0mA to 8mA) (Note 2)
Temperature Voltage Output
Temperature Coefficient
CONDITIONS
0°C
≤
T
A
≤
70°C
–55°C
≤
T
A
≤
125°C
(Note 6)
R
P
= 10kΩ
●
●
●
●
REF-01A/E, REF-02A/E
MIN
TYP
MAX
0.02
0.09
5
0.5
0.06
0.15
8.5
REF-01H/REF-02H
MIN
TYP
MAX
0.035
0.144
8
0.5
0.17
0.45
25
UNITS
%
%
ppm/°C
ppm/%
0°C
≤
T
A
≤
70°C
–55°C
≤
T
A
≤
125°C
0°C
≤
T
A
≤
70°C
–55°C
≤
T
A
≤
125°C
(Note 3) REF-02
●
●
●
●
●
0.0001
0.0001
0.002
0.002
2.1
0.012
0.015
0.010
0.012
0.0001
0.0001
0.002
0.002
2.1
0.012
0.015
0.012
0.015
%/V
%/V
%/mA
%/mA
mV/°C
3
REF-01/REF-02
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 15V, 0°C
≤
T
A
≤
70°C and I
L
= 0mA unless otherwise noted.
REF-01C, REF-02C
MIN
TYP
MAX
●
●
●
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
∆V
∆T
TC
Output Voltage Change with
Temperature
Output Voltage Temperature
Coefficient
Change in V
O
Temperature
Coefficient with Output
Adjustment
∆V
OUT
∆V
IN
∆V
OUT
∆I
OUT
Line Regulation
(Note 2)
Load Regulation
(Note 2)
Temperature Voltage Output
Temperature Coefficient
CONDITIONS
(Notes 4, 5)
(Note 6)
R
P
= 10kΩ
MIN
REF-02D
TYP
MAX
1.7
UNITS
%
ppm/°C
ppm/%
0.45
8
0.5
65
8
0.5
250
V
IN
= 8V to 30V
I
L
= 0mA to 5mA
(Note 3) REF-02
●
●
●
0.0001
0.002
2.1
0.018
0.018
0.0001
0.002
2.1
0.05
0.05
%/V
%/mA
mV/°C
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Line and load regulation specifications include the effect of self
heating.
Note 3:
Limit current in or out of Pin 3 to 50nA and capacitance on Pin 3
to 30pF.
Note 4:
∆V
is defined as the absolute difference between the maximum
output voltage and the minimum output voltage over the specified
temperature range expressed as a percentage of nominal output.
–V
V
∆V
=
MAX MIN •100
VOUT
Note 5:
∆V
specification applies trimmed or untrimmed.
Note 6:
TC is defined as
∆V
divided by the temperature range, i.e.,
TC
=
∆
V
TMAX
±
TMIN
Note 7:
0.1Hz to 10Hz noise cannot be 100% tested on modern high
speed test equipment, so Linear Technology does not put a guaranteed
maximum specification on this parameter for standard units. 100% bench
testing of 0.1Hz to 10Hz noise is available on special request. To ensure
low output noise, Linear Technology
does
100% test 10Hz to 1kHz noise.
Consult factory for details.
4
REF-01/REF-02
PACKAGE DESCRIPTIO
SEATING
PLANE
0.010 – 0.045*
(0.254 – 1.143)
0.016 – 0.021**
(0.406 – 0.533)
45°TYP
0.028 – 0.034
(0.711 – 0.864)
0.110 – 0.160
(2.794 – 4.064)
INSULATING
STANDOFF
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
0.016 – 0.024
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
(0.406 – 0.610)
U
H Package
8-Lead TO-5 Metal Can (.230 Inch PCD)
(Reference LTC DWG # 05-08-1321)
0.335 – 0.370
(8.509 – 9.398)
DIA
0.305 – 0.335
(7.747 – 8.509)
0.040
(1.016)
MAX
0.050
(1.270)
MAX
GAUGE
PLANE
0.165 – 0.185
(4.191 – 4.699)
REFERENCE
PLANE
0.500 – 0.750
(12.700 – 19.050)
0.027 – 0.045
(0.686 – 1.143)
PIN 1
0.230
(5.842)
TYP
H8 (TO-5) 0.230 PCD 1197
OBSOLETE PACKAGE
5
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