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Precision 2.5V FGA™ Voltage Reference
X60008B-25
X60008C-25
X60008D-25
FEATURES
DESCRIPTION
• Output Voltage: 2.500V
The X60008-25 FGA™ voltage references are very
• Absolute Initial Accuracy Options:
high precision analog voltage references fabricated in
±0.5mV & ±1.0mV
Xicor’s proprietary Floating Gate Analog technology,
• Ultra Low Power Supply Current: 500nA
• Low Temperature Coefficient options:
3, 5 & 10ppm/°C
m• 10 mA Source & Sink Current Capability
o• 10 ppm/1000hrs Long Term Stability
• Supply Voltage Range: 4.5V to 6.5V
.c• 5kV ESD (Human Body Model)
• Standard Package: SOIC-8
t4U• Temp Range: -40°C to +85°C
which achieves superior levels of performance when
compared to conventional band gap, buried zener, or
XFET™ technologies.
FGA™ voltage references feature very high initial
accuracy, very low temperature coefficient, excellent
long term stability, low noise and excellent line and
load regulation, at the lowest power consumption
currently available. These voltage references enable
advanced applications for precision industrial &
portable systems operating at significantly higher
accuracy and lower power levels than can be achieved
with conventional technologies.
eAPPLICATIONS
e• High Resolution A/Ds & D/As
• Digital Meters
h• Calibration Systems
S• V-F Converters
• Precision Current Sources
• Precision Regulators
• Precision Oscillators
• Battery Management Systems
• Smart sensors
• Strain Gage Bridges
• Threshold Detectors
• Servo Systems
ataTYPICAL APPLICATION
.DVIN = +5.0V
wVIN VOUT
w X60008-25
w heet4U.comGND
0.1µF
Serial
Bus
10µF
0.001µF(*)
REF IN
Enable
SCK
SDAT
16 to 24-bit
A/D Converter
www.DataSREV 1.2.6 4/22/04
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(*)Also see Figure 3 in Applications Information
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PACKAGE DIAGRAM
X60008B-25, X60008C-25, X60008D-25
GND
VIN
DNC
GND
X60008-XX
SOIC
18
27
36
45
DNC
DNC
VOUT
DNC
PIN CONFIGURATIONS
Pin Name
GND
VIN
VOUT
DNC
Description
Ground Connection
Power Supply Input Connection
Voltage Reference Output Connection
Do Not Connect; Internal Connection – Must Be Left Floating
ORDERING INFORMATION
X 60008 C I S8 – 25
Logo
Device Part Number 60008 = Standard
Grade
B = ±0.5 mV, 3 ppm/°C
C = ±0.5 mV, 5 ppm/°C
D = ±1.0 mV, 10 ppm/°C
Temperature Range I = -40°C to +85°C
Package
S8 = 8 lead SOIC
VOUT Option
25 = 2.500V
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X60008B-25, X60008C-25, X60008D-25
ABSOLUTE MAXIMUM RATINGS
Storage Temperature Range .................–65°C to +125°C
Max Voltage Applied VIN to Gnd ............... –0.5V to +6.5V
Max Voltage Applied VOUT to Gnd(*) ......... –0.5V to +3.5V
Voltage on “DNC” pins ......... No connections permitted to
these pins.
Lead Temperature, soldering(*) ............................+ 225°C
(*) note: maximum duration = 10 seconds
RECOMMENDED OPERATING CONDITIONS
Temperature
Industrial
Min.
–40°C
Max.
+85°C
COMMENT
Absolute Maximum Ratings are limits which may result
in impaired reliability and/or permanent damage to the
device. These are stress ratings provided for informa-
tion only and functional operation of the device at
these or any other conditions beyond those indicated
in the operational sections of this specification are not
implied.
For guaranteed specifications and test conditions, see
Electrical Characteristics.
The guaranteed specifications apply only for the test
conditions listed. Some performance characteristics
may degrade when the device is not operated under
the listed test conditions.
ELECTRICAL CHARACTERISTICS
(Operating Conditions: VIN = 5.0V, IOUT = 0mA, COUT = 0.001µF, TA = -40 to +85°C unless otherwise specified.)
Symbol
Parameter
Conditions
Min Typ Max Units
VOUT
VOA
Output Voltage
VOUT Accuracy
X60008B-25
X60008C-25
X60008D-25
TA = 25°C
2.500
-0.50
-0.50
-1.00
+0.50
+0.50
+1.00
V
mV
IIN
VIN
TC VOUT
Supply Current
Input Voltage Range
Output Voltage
Temperature Coefficient(1)
X60008B-25
X60008C-25
X60008D-25
500 800
nA
4.5 6.5 V
3 ppm/°C
5
10
VOUT/VIN Line Regulation
VOUT/IOUT Load Regulation
VOUT/t
VOUT/TA
ISC
VN
Long Term Stability
Thermal Hysteresis(2)
Short Circuit Current(3)
Output Voltage Noise
+4.5V VIN +6.5V
0mA ISOURCE 10mA
-10mA ISINK 0mA
TA = 25°C
T = -40°C to +85°C
TA = 25°C
0.1Hz to 10Hz
100 µV/V
10 40 µV/mA
20 80
10 ppm/
1000Hrs
50 ppm
50 80
mA
30 µVpp
Note: 1. Over the specified temperature range. Temperature coefficient is measured by the box method whereby the change in VOUT is
divided by the temperature range; in this case, -40°C to +85°C = 125°C.
2. Thermal Hysteresis is the change in VOUT created by package stress @ TA = 25°C after temperature cycling. VOUT is read initially at
TA = 25°C; the X60008 is then cycled between Hot (85°C) and Cold (-40°C) before a second VOUT measurement is taken at 25°C.
The deviation between the initial VOUT reading and the second VOUT reading is then expressed in ppm.
3. Guaranteed by device characterization and/or correlation to other device tests.
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X60008B-25, X60008C-25, X60008D-25
TYPICAL PERFORMANCE CHARACTERISTIC CURVES
(VIN = 5.0V, IOUT = 0mA, TA = 25°C unless otherwise specified)
80
60
40
20
0
-20
-40
-60
-80
-100
4.5
LINE REGULATION
-40°C
+25°C
+85°C
5 5.5 6
VIN (V)
6.5
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-0.1
-0.2
-0.3
-20
LOAD REGULATION
+25°C -40°C
+85°C
-15 -10
-5
0
5
SINKING
IOUT (mA)
10 15
SOURCING
20
2.50008
2.50006
2.50004
2.50002
2.5
2.49998
2.49996
2.49994
4.5
LINE REGULATION
310nA
520nA
690nA
5 5.5 6
VIN (V)
6.5
0.1Hz to 10Hz VOUT NOISE
Band Pass Filter with 1 zero at .1Hz and 2 poles at 10 Hz
1 Sec/div
2.502
VOUT vs TEMPERATURE
Normalized to 25°C
2.501
2.5
2.499
520nA
690nA
320nA
2.498
-40
-15 10
35
TEMPERATURE (°C)
60
85
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
1
PSRR vs CAP Load
No Load
1nF Load
10nF
Load
100nF Load
10 100 1000 10000 100000 1000000
FREQUENCY (Hz)
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X60008B-25, X60008C-25, X60008D-25
TYPICAL PERFORMANCE CHARACTERISTIC CURVES
(VIN = 5.0V, IOUT = 0mA, TA = 25°C unless otherwise specified)
10mA LOAD TRANSIENT RESPONSE
50µA LOAD TRANSIENT RESPONSE
CL = .001µF
CL = .001µF
IIN = -10mA
IIN = +10mA
IIN = -50µA
IIN = +50µA
1mS/DIV
LINE TRANSIENT RESPONSE
CL = 0
500µSEC/DIV
LINE TRANSIENT RESPONSE
CL = .001µF
VIN = -500mV
VIN = +500mV
500µSEC/DIV
VIN = -500mV
VIN = +500mV
500µSEC/DIV
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