CAT8900
Precision Analog Voltage
References
The CAT8900 is a high precision voltage reference providing very
accurate voltage regulation with low supply current consumption.
CAT8900 is ideal for use in battery powered systems where
operating current needs to be minimized and there can be a great
variation in supply voltages. It will source or sink up to 10 mA of load
current, and can for most applications, forgo the use of an output
bypass capacitor. The device is supplied in a space saving three
terminal SOT−23 package.
Features
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•
Reference Voltages:
•
•
•
•
•
1.024 V, 1.200 V, 1.250 V, 1.800 V,
2.048 V, 2.500 V, 2.600 V,
3.000 V, 3.300 V
Low Supply Current: 450 nA (Typical)
Initial Accuracy:
Class A:
±
0.5 mV
Class B:
±
1.0 mV
Class C:
±
2.5 mV
Class D:
±
5.0 mV
Drift Performance: 20 ppm/°C
SOT−23 3−Lead Package
This Device is Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
Battery Powered Systems
A/D and D/A Converters
Precision Regulator Systems
Power Supplies
Portable Medical Equipment
SOT23−3
TP, TB SUFFIX
CASE 527AG
MARKING DIAGRAM
3
S3YM
1
2
S3 = Specific Device Code
Y = Production Year
=
(Last Digit)
M = Production Month
=
(1
−
9, A, B, C)
Typical Applications
•
•
•
•
•
PIN CONNECTIONS
1
V
IN
3
GND
2
V
OUT
V
OUT
(Top View)
V
IN
C
0.1
mF
V
IN
V
OUT
CAT8900
PIN FUNCTIONS
GND
Pin No.
1
2
Pin Name
V
IN
V
OUT
GND
Function
Supply Voltage Input
Output Voltage
Ground
Figure 1. Application Circuit
3
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
©
Semiconductor Components Industries, LLC, 2009
August, 2009
−
Rev. 1
1
Publication Order Number:
CAT8900/D
CAT8900
Table 1. ORDERING INFORMATION
Orderable Part Number
CAT8900A102TBIT3
CAT8900B102TBIT3
CAT8900C102TBIT3
CAT8900D102TBIT3
CAT8900A120TBIT3
CAT8900B120TBIT3
CAT8900C120TBIT3
CAT8900D120TBIT3
CAT8900A125TBIT3
CAT8900B125TBIT3
CAT8900C125TBIT3
CAT8900D125TBIT3
CAT8900A180TBIT3
CAT8900B180TBIT3
CAT8900C180TBIT3
CAT8900D180TBIT3
CAT8900A204TBIT3
CAT8900B204TBIT3
CAT8900C204TBIT3
CAT8900D204TBIT3
CAT8900A250TBIT3
CAT8900B250TBIT3
CAT8900C250TBIT3
CAT8900D250TBIT3
CAT8900A260TBIT3
CAT8900B260TBIT3
CAT8900C260TBIT3
CAT8900D260TBIT3
CAT8900A300TBIT3
CAT8900B300TBIT3
CAT8900C300TBIT3
CAT8900D300TBIT3
CAT8900A330TBIT3
CAT8900B330TBIT3
CAT8900C330TBIT3
CAT8900D330TBIT3
Accuracy (mV)
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
±0.5
±1.0
±2.5
±5.0
3.300
SOT−23
3,000
3.000
SOT−23
3,000
2.600
SOT−23
3,000
2.500
SOT−23
3,000
2.048
SOT−23
3,000
1.800
SOT−23
3,000
1.250
SOT−23
3,000
1.200
SOT−23
3,000
1.024
SOT−23
3,000
V
OUT
Voltage (V)
(Note 1)
Package
Shipping
†
1. Contact factory for availability of these and other custom voltages.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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2
CAT8900
Table 2. ABSOLUTE MAXIMUM RATINGS
(Note 2)
Rating
V
IN
Storage Temperature Range
Junction Temperature Range
Value
6.5
−55
to +125
+150
Unit
V
_C
_C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
2. Maximum terminal current is bounded by the maximum current handling of the switches, maximum power dissipation of the package.
Table 3. RECOMMENDED OPERATING CONDITIONS
Rating
Temperature Range
Value
−40
to +85
Unit
_C
Table 4. ELECTRICAL CHARACTERISTICS
V
IN
= 3.0 V, I
OUT
= 0 mA, C
OUT
= 0.001
mF,
−40_C
to +85_C unless specified otherwise.
Parameter
Output Voltage
Test Conditions
Symbol
V
OUT
Min
Typ
1.024
1.200
1.250
1.800
2.048
2.500
2.600
3.000
3.300
Max
Unit
V
Initial Accuracy
T
A
= 25°C
Grade A
Grade B
Grade C
Grade D
−0.5
−1.0
−2.5
−5.0
50
DV
OUT
÷
DT
DV
OUT
÷
DT
A
DV
OUT
÷
DV
IN
DV
OUT
÷
DI
LOAD
12
100
30
100
150
DV
OUT
÷
Dt
I
LOAD
T
A
= 25°C
V
OUT
pin shorted to GND
V
OUT
pin shorted to V
IN
0.1% @ V
IN
= 3 V; C
L
= 0 pF
I
L
= 0 mA
V
IN
I
IN
2.7
450
I
SC
40
20
2
60
40
ms
−10
50
+10
100
250
350
20
+0.5
+1.0
+2.5
+5.0
mV
mV
mV
mV
mVp−p
ppm/°C
ppm
mV/V
mV/mA
mV/mA
ppm
mA
mA
Output Voltage Noise (Note 3)
Output Voltage Temperature Drift
Thermal Hysteresis (Note 3)
Line Regulation
Load Regulation Sourcing
Sinking
Long Term Stability (Note 3)
Output Current
Short Circuit Current (Note 3)
Sourcing
Sinking
Turn−on Settling Time
POWER SUPPLY
Input Voltage
Supply current
3. Guaranteed by design.
f = 0.1 Hz to 10 Hz
−40°C
to 85°C
ΔT
A
= 125°C
2.7 V < V
IN
< 5.5 V
0 mA < I
LOAD
< 10 mA; V
IN
= 3 V
−10
mA < I
LOAD
< 0 mA;
V
IN
= 3 V
T
A
= 25°C; first 1000 hours
5.5
800
V
nA
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3
CAT8900
TYPICAL CHARACTERISTICS
(V
IN
= 3.0 V, I
OUT
= 0 mA, ambient temperature of 25°C, unless specified otherwise.)
700
650
SUPPLY CURRENT (nA)
600
550
500
450
400
350
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Unit 2
Unit 3
Unit 1
SUPPLY CURRENT (nA)
650
600
550
500
450
400
350
+85°C
+25°C
−40°C
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 2. Supply Current vs. Input Voltage
1.2502
OUTPUT VOLTAGE CHANGE (mV)
50
Figure 3. Supply Current vs. Input Voltage
Over Temperature
−40°C
+85°C
25
+25°C
OUTPUT VOLTAGE (V)
1.2501
Unit 1
1.2500
Unit 2
Unit 3
0
1.2499
1.2498
2.5
3.0
3.5
4.0
4.5
5.0
5.5
−25
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 4. Line Regulation
2.0
OUTPUT VOLTAGE CHANGE (mV)
1.5
1.0
0.5
0
−0.5
−1.0
−1.5
−10
SINKING
−5
0
SOURCING
5
10
−40°C
1.2508
1.2506
OUTPUT VOLTAGE (V)
+25°C
1.2504
1.2502
1.2500
1.2498
1.2496
1.2494
1.2492
−40
Figure 5. Line Regulation Over Temperature
Normalized
+85°C
Unit 3
Unit 2
Unit 1
−15
10
35
60
85
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
Figure 6. Load Regulation Over Temperature
Figure 7. Output Voltage vs. Temperature
Normalized
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4
CAT8900
TYPICAL CHARACTERISTICS
(V
IN
= 3.0 V, I
OUT
= 0 mA, ambient temperature of 25°C, unless specified otherwise.)
100 mV / DIV
1 ms / DIV
100 mV / DIV
1 ms / DIV
Figure 8. Line Transient Response
Figure 9. Line Transient Response with
Capacitive Load
200 mV / DIV
500
ms
/ DIV
50 mV / DIV
500
ms
/ DIV
Figure 10. Load Transient Response
160
140
OUTPUT IMPEDANCE (W)
120
100
80
60
40
20
0
1
10
100
1k
10 k
100 k
100 nF Load
0
−10
−20
PSRR (dB)
−30
−40
−50
−60
−70
−80
−90
1
Figure 11. Load Transient Response
No Load
1 nF Load
10 nF Load
No Load
1 nF Load
10 nF Load
100 nF Load
10
100
1k
10 k
100 k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 12. Output Impedance vs. Frequency
Figure 13. Power Supply Ratio Rejection vs.
Frequency
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5
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