FT1029/FT1029A
5V Bandgap Reference
5V Bandgap Reference
■
■
■
■
■
■
■
0.2% Output Tolerance
0.6Ω Shunt Impedance
700µA to 10mA Operating Current
Pin Compatible with LM136-5
20ppm/°C Max Drift
Output Voltage Trim does not Affect Drift
Can be Used as Positive or Negative Reference
The
FT1029
is a 5V bandgap reference intended for use
in the shunt or “Zener” mode, allowing it to be used as
either a positive or negative reference. The output is
pretrimmed to
±
0.2% accuracy with 20ppm/°C maximum
temperature drift. A trim pin allows additional output
adjustment for even more precise output voltage.
Operating current range for the
FT1029
is 700µA to 10mA.
Extremely low dynamic impedance allows excellent
output regulation even with fluctuating operating current.
The
FT1029
will replace an
FT136-5
or
FT336-5
and
simplify circuits using the “minimum temperature coeffi-
cient” trim network. The
FT1029
does not require this
special network to meet its temperature drift specification;
these application network components are simply
removed. If output trimming is required for initial
accuracy, the diodes in the trim network should be
replaced with jumpers.
Applications
■
■
■
■
A-to-D and D-to-A Converters
Precision Regulators
Precision Current Sources
V
to F and F to V Converters
T
Output Voltage Drift
5.015
5.010
OUTPUT VOLTAGE (V)
5.005
5.000
4.995
4.990
4.895
– 50
– 25
0
25
50
75
TEMPERATURE (°C)
100
125
U
Features
Description
U
U
FT1029/FT1029A
5V Bandgap Reference
Absolute Maxiumum Rating
(Note 1)
A
Reverse Current .................................................... 15mA
Forward Current ................................................... 10mA
Operating Temperature Range
FT1029C/FT1029AC
............................... 0°C to 70°C
FT1029M/FT1029AM .........................–
55°C to 125°C
Storage Temperature ............................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
BOTTOM VIEW
ADJ
+
–
ORDER PART
NUMBER
FT1029AMH
FT1029MH
FT1029ACH
FT1029CH
BOTTOM VIEW
ADJ
+
–
H PACKAGE
TO-46 METAL CAN
T
JMAX
= 150°C,
θ
JA
= 440°C/W,
θ
JC
= 80°C/W
Electrical Characteristics
The
●
denotes
the specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25°C.
PARAMETER
Reverse Breakdown Voltage
Reverse Breakdown Change with Current
Reverse Dynamic Impedance
Temperature Stability
CONDITIONS
I
R
= 1mA
FT1029AM/FT1029AC
FT1029M/FT1029C
●
700µA
≤
I
R
≤
10mA
I
R
= 1mA
●
I
R
= 1mA
Equivalent Temperature Drift
FT1029AM/FT1029AC
FT1029C
FT1029M
Long Term Stability
Trim Range
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
±
3
U
Package/Order Information
W
U
U
W W
W
ORDER PART
NUMBER
FT1029ACZ
FT1029CZ
Z PACKAGE
TO-92 PLASTIC
T
JMAX
= 100°C,
θ
JA
= 160°C/W
MIN
4.99
4.95
TYP
5.00
5.00
2
3
0.2
0.3
3
5
7
10
8
12
15
20
+ 5, – 13
MAX
5.01
5.05
5
8
0.6
1.0
7
12
18
36
20
34
40
UNITS
V
V
mV
mV
Ω
Ω
mV
mV
mV
mV
ppm/°C
ppm/°C
ppm/°C
ppm/kHr
%
LFT1029AC
FT1029C
FT1029AM
FT1029M
●
●
●
●
●
●
●
Ashley Crt, Henley,
Marlborough, Wilts, SN8 3RH UK
Tel: +44(0)1264 731200
Fax:+44(0)1264 731444
E-mail
info@forcetechnologies.co.uk
tech@forcetechnologies.co.uk
sales@forcetechnologies.co.uk
www.forcetechnologies.co.uk
Unless otherwise stated in this SCD/Data sheet, Force Technologies Ltd reserve the right to make changes, without notice, in the products, Includ
-ing circuits, cells and/or software, described or contained herein in order to improve design and/or performance. Force Technologies resumes no
responsibility or liability for the use of any of these products, conveys no licence or any title under patent, copyright, or mask work to these
products, and makes no representation or warranties that that these products are free from patent, copyright or mask work infringement, unless
otherwise specified.
products, and makes no representation or warranties that that these products are free from patent, copyright or mask work infringement, unless
Life Support Applications
Force Technologies products are not designed for use in life support appliances, devices or systems where malfunction of a Force Technologies
product can reasonably be expected to result in a personal injury. Force Technologies customers using or selling Force Technologies products
for use in such applications do so at their own risk and agree to fully indemnify Force Technologies for any damages resulting from such
improper use or sale.
All trademarks acknowledged
Copyright Force Technologies Ltd 2007
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