www.fairchildsemi.com
FAN4040
Precision Micropower Shunt Voltage Reference
Features
Description
•
•
•
•
•
•
•
The FAN4040 series of precision shunt references are ideal
for space- and cost-sensitive applications. They are available
in three output voltages (2.500V, 3.300V and 5.00V) and
with four output voltage tolerances (0.1%, 0.2%, 0.5% and
1%). They also have excellent temperature coefficients, to
100ppm/°C for the tighter tolerance grades. The FAN4040
series has an extended operating current range, sinking as
much as 25mA.
Fixed 2.500V, 3.300V and 5.00V
Tolerances to ±0.1% (25°C)
Low output noise
Low temperature coefficient to 100ppm/°C
Small package
Extended operating current range
Extended temperature range
Applications
•
•
•
•
•
The FAN4040 series is available in SOT-23 package.
Portable equipment
Disk drives
Instrumentation
Audio equipment
Data acquisition systems
Connection Diagrams
SOT-23
+
1
3*
–
*This pin must be left floating
or connected to pin 2.
2
Top View
REV. 1.0.5 1/29/03
FAN4040
PRODUCT SPECIFICATION
Absolute Maximum Ratings1
Ratings are over full operating free-air temperature range unless otherwise noted.
Parameter
Min.
Max.
Unit
Continuous cathode current, IK
-30
30
mA
Power dissipation
See Dissipation Rating Table
Storage Temperature Range
-65
Lead Temperature (Soldering, 10 sec.)
150
°C
300
°C
Notes:
1. Functional operation under these conditions is not implied. Permanent damage may occur if the device is subjected to
conditions outside these ratings.
Recommended Operating Conditions
Parameter
Continuous cathode current, IK
Operating temperature range in free air, TA
Min.
Max.
Unit
0.025
25
mA
I Grade
-40
85
°C
E Grade
-40
125
°C
Dissipation Rating Table
Package
Power Rating
TA ≤ 25°C
Derating Factor
TA ≥ 25°C
Power Rating
TA = 70°C
SOT231
306mW
3.0mW/°C
168mW
Note:
1. It is recommended to connect pin 3 to pin 2 to ensure optimal thermal performance.
Equivalent Schematic
+
+
_
_
2
REV. 1.0.5 1/29/03
PRODUCT SPECIFICATION
FAN4040
Guaranteed Electrical Characteristics, FAN4040-2.5, Industrial Temperature Range
(TA = 25°C unless otherwise specified, in free air)
The • denotes specifications which apply over the full operating temperature range.
Symbol
VR
TCVR
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
IRMIN
Minimum Operating Current
∆VR/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆VR (∆IK) Reverse Breakdown Voltage
Change with Operating Current
ZKA
Reverse Dynamic Impedance
eN
Wideband Noise
∆VR
Reverse Breakdown Voltage
Long-term Stability
Conditions
IK = 100µA
IK = 100µA
IK = 1mA
IRMIN ≤ IK ≤1mA
1mA ≤ IK ≤ 15mA
1mA ≤ IK ≤ 25mA
IK=1mA, f=120Hz,
IAC=0.1IK
IK=100µA,
10Hz ≤ f ≤ 10kHz
t=1000hrs, T=25°C,
IK=100µA
Limits
A
B
C
D
2.500 2.500 2.500 2.500
±2.5 ±5.0 ±12
±25
• ±19
±21
±29
±49
•
65
65
65
70
• ±100 ±100 ±100 ±150
•
•
Units
V*
mV
mV
µA
ppm/°C
1.2
8.0
10
1.0
1.2
8.0
10
1.0
1.2
8.0
10
1.0
1.5
10.0
12
1.3
mV
mV
mV*
Ω*
35
35
35
35
µVRMS*
120
120
120
120
ppm*
*Typical.
Guaranteed Electrical Characteristics, FAN4040-3.3, Industrial Temperature Range
(TA = 25°C unless otherwise specified, in free air)
The • denotes specifications which apply over the full operating temperature range.
Symbol
VR
TCVR
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
IRMIN
Minimum Operating Current
∆VR/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆VR (∆IK) Reverse Breakdown Voltage
Change with Operating Current
ZKA
Reverse Dynamic Impedance
eN
Wideband Noise
∆VR
Reverse Breakdown Voltage
Long-term Stability
Conditions
IK = 100µA
IK = 100µA
IK = 1mA
IRMIN ≤ IK ≤1mA
1mA ≤ IK ≤ 15mA
1mA ≤ IK ≤ 25mA
IK=1mA, f=120Hz,
IAC=0.1IK
IK=100µA,
10Hz ≤ f ≤ 10kHz
t=1000hrs, T=25°C,
IK=100µA
Limits
A
B
C
D
3.300 3.300 3.300 3.300
±3.3 ±6.6 ±17
±33
• ±25
±28
±38
±65
•
70
70
70
75
• ±100 ±100 ±100 ±150
•
•
Units
V*
mV
mV
µA
ppm/°C
1.2
10
12
1.0
1.2
10
12
1.0
1.2
10
12
1.0
1.5
13
15
1.3
mV
mV
mV*
Ω*
70
70
70
70
µVRMS*
120
120
120
120
ppm*
*Typical.
REV. 1.0.5 1/29/03
3
FAN4040
PRODUCT SPECIFICATION
Guaranteed Electrical Characteristics, FAN4040-5.0, Industrial Temperature Range
(TA = 25°C unless otherwise specified, in free air)
The • denotes specifications which apply over the full operating temperature range.
Symbol
VR
TCVR
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
IRMIN
Minimum Operating Current
∆VR/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆VR (∆IK) Reverse Breakdown Voltage
Change with Operating Current
ZKA
Reverse Dynamic Impedance
eN
Wideband Noise
∆VR
Reverse Breakdown Voltage
Long-term Stability
Conditions
IK = 100µA
IK = 100µA
IK = 1mA
IRMIN ≤ IK ≤1mA
1mA ≤ IK ≤ 15mA
1mA ≤ IK ≤ 25mA
IK=1mA, f=120Hz,
IAC=0.1IK
IK=100µA,
10Hz ≤ f ≤ 10kHz
t=1000hrs, T=25°C,
IK=100µA
•
•
•
•
•
A
5.00
±5
±40
65
±100
Limits
B
C
5.00 5.00
±10
±24
±45
±60
65
65
±100 ±100
Units
D
5.00
±50
±100
70
±150
V*
mV
mV
µA
ppm/°C
1.2
8.0
10
1.0
1.2
8.0
10
1.0
1.2
8.0
10
1.0
1.5
10.0
12
1.3
mV
mV
mV*
Ω*
70
70
70
70
µVRMS*
120
120
120
120
ppm*
*Typical.
Guaranteed Electrical Characteristics, FAN4040-2.5, Extended Temperature Range
(TA = 25°C unless otherwise specified, in free air)
The • denotes specifications which apply over the full operating temperature range.
Symbol
VR
TCVR
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
IRMIN
Minimum Operating Current
∆VR/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆VR (∆IK) Reverse Breakdown Voltage
Change with Operating Current
ZKA
Reverse Dynamic Impedance
eN
Wideband Noise
∆VR
Reverse Breakdown Voltage
Long-term Stability
Conditions
IK = 100µA
IK = 100µA
IK = 1mA
IRMIN ≤ IK ≤1mA
1mA ≤ IK ≤ 15mA
1mA ≤ IK ≤ 25mA
IK=1mA, f=120Hz,
IAC=0.1IK
IK=100µA,
10Hz ≤ f ≤ 10kHz
t=1000hrs, T=25°C,
IK=100µA
Limits
A
B
C
D
2.500 2.500 2.500 2.500
±2.5 ±5.0 ±12
±25
• ±25
±30
±35
±49
•
65
65
65
70
• ±100 ±100 ±100 ±150
•
•
Units
V*
mV
mV
µA
ppm/°C
1.5
10.0
10
1.0
1.5
10.0
10
1.0
1.5
10.0
10
1.0
1.5
10.0
12
1.3
mV
mV
mV*
Ω*
70
70
70
70
µVRMS*
120
120
120
120
ppm*
*Typical.
4
REV. 1.0.5 1/29/03
PRODUCT SPECIFICATION
FAN4040
Guaranteed Electrical Characteristics, FAN4040-3.3, Extended Temperature Range
(TA = 25°C unless otherwise specified, in free air)
The • denotes specifications which apply over the full operating temperature range.
Symbol
VR
TCVR
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
IRMIN
Minimum Operating Current
∆VR/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆VR (∆IK) Reverse Breakdown Voltage
Change with Operating Current
ZKA
Reverse Dynamic Impedance
eN
Wideband Noise
∆VR
Reverse Breakdown Voltage
Long-term Stability
Conditions
IK = 100µA
IK = 100µA
IK = 1mA
IRMIN ≤ IK ≤1mA
1mA ≤ IK ≤ 15mA
1mA ≤ IK ≤ 25mA
IK=1mA, f=120Hz,
IAC=0.1IK
IK=100µA,
10Hz ≤ f ≤ 10kHz
t=1000hrs, T=25°C,
IK=100µA
Limits
A
B
C
D
3.300 3.300 3.300 3.300
±3.3 ±6.6 ±17
±33
• ±30
±35
±42
±65
•
70
70
70
75
• ±100 ±100 ±100 ±150
•
•
Units
V*
mV
mV
µA
ppm/°C
1.5
10
12
1.0
1.5
10
12
1.0
1.5
10
12
1.0
1.5
13
15
1.3
mV
mV
mV*
Ω*
70
70
70
70
µVRMS*
120
120
120
120
ppm*
*Typical.
Guaranteed Electrical Characteristics, FAN4040-5.0, Extended Temperature Range
(TA = 25°C unless otherwise specified, in free air)
The • denotes specifications which apply over the full operating temperature range.
Symbol
VR
TCVR
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
IRMIN
Minimum Operating Current
∆VR/∆T
Reverse Breakdown Voltage
Temperature Coefficient
∆VR (∆IK) Reverse Breakdown Voltage
Change with Operating Current
ZKA
Reverse Dynamic Impedance
eN
Wideband Noise
∆VR
Reverse Breakdown Voltage
Long-term Stability
Conditions
IK = 100µA
IK = 100µA
IK = 1mA
IRMIN ≤ IK ≤1mA
1mA ≤ IK ≤ 15mA
1mA ≤ IK ≤ 25mA
IK=1mA, f=120Hz,
IAC=0.1IK
IK=100µA,
10Hz ≤ f ≤ 10kHz
t=1000hrs, T=25°C,
IK=100µA
•
•
•
•
•
A
5.00
±5
±50
100
±100
Limits
B
C
5.00 5.00
±10
±24
±60
±70
100
100
±100 ±100
Units
D
5.00
±50
±100
100
±150
V*
mV
mV
µA
ppm/°C
1.5
10
10
1.0
1.5
10
10
1.0
1.5
10
10
1.0
1.5
15
12
1.3
mV
mV
mV*
Ω*
70
70
70
70
µVRMS*
120
120
120
120
ppm*
*Typical.
REV. 1.0.5 1/29/03
5
FAN4040
PRODUCT SPECIFICATION
Mechanical Dimensions
SOT-23 Package
Symbol
Inches
Min.
A
A1
B
c
D
E
e
e1
H
L
S
Millimeters
Max.
Min.
Max.
.035
.044
.0004
.004
.012
.020
.003
.008
.110
.120
.047
.055
.037 BSC
.075 BSC
.083
.104
.89
1.12
.01
.10
.30
.50
.08
.20
2.80
3.04
1.20
1.40
.95 BSC
1.90 BSC
2.10
2.64
.021 REF
.016 Nom
.54 REF
.395 Nom
Notes:
Notes
1. Dimensions are inclusive of plating.
2. Dimensions are exclusive of mold flash & metal burr.
3. Comply to JEDEC TO-236.
4. This drawing is for matrix leadframe only.
D
e1
S
c
e
L
E
H
B
A1
6
A
REV. 1.0.5 1/29/03
FAN4040
PRODUCT SPECIFICATION
Ordering Information
Example: FAN4040DIS325X ('X' denotes Tape and Reel)
FAN4040
D
I
S3
25
Grade
0.1% = A*
0.2% = B
0.5% = C
1.0% = D
Temperature
-40°C to 85°C – I
-40°C to 125°C – E
Package
SOT23 = S3
Voltage
2.5V = 25
3.3V = 33
5.0V = 5
* ‘A’ grade is a special order. Please contact factory for availability.
SOT-23 Package Marking Information
Only 3 fields of marking are possible on an SOT-23. This table gives the meaning of these fields.
Example: F2A
F
2
A
Voltage
2.5V = 2
3.3V = 3
5.0V = 5
Grade
0.1% = A
0.2% = B
0.5% = C
1.0% = D
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, or (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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2003 Fairchild Semiconductor Corporation