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PDF ( 数据手册 , 数据表 ) X60008A-50

零件编号 X60008A-50
描述 Precision Low-Power FGA Voltage Reference
制造商 Intersil Corporation
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X60008A-50 数据手册, 描述, 功能
®
Data Sheet
March 15, 2005
X60008A-50
FN8139.0
1ppm/°C, 5.0V, Precision Low-Power
FGA™ Voltage Reference
FEATURES
DESCRIPTION
The X60008A-50 is an extremely stable low power,
high accuracy voltage reference fabricated in Intersil’s
proprietary Floating Gate Analog technology.
• Ultra-Low Temperature Coefficient: 1ppm/°C
The X60008A-50 features guaranteed 1 ppm/°C maxi-
• Absolute Initial Accuracy: ±0.5mV
mum temperature coefficient, absolute initial accuracy of
• 10ppm Thermal Hysteresis
±500µV and extremely low, 10ppm thermal hysteresis.
• Ultra-Low Supply Current : 800nA maximum
• Long Term Stability: 10ppm/1,000Hrs
• 10mA Source & Sink Current
m• 80 mA Short Circuit Current Continuous
• ESD: 5kV (Human Body Model), 500V (Machine
oModel)
.c• Standard SOIC-8 Package
• Temp. Range: -40°C to +85°C
Operating power consumption is typically 500nA and
load regulation is guaranteed up to 10mA (source
and sink). Short circuit current is guaranteed at 80mA
continuous.
The excellent accuracy and stability performance of
the X60008A-50 coupled with its low power consump-
tion is an ideal choice for battery powered high resolu-
tion data acquisition systems.
t4UAPPLICATIONS
• High Resolution A/Ds & D/As
e• High-Accuracy Reference Standard
• Precision Regulators
e• Precision Current Sources
h• Smart sensors
TYPICAL APPLICATION
• Digital Meters
• ATE Equipment
• V-F Converters
• Strain Gage Bridges
• Calibration Systems
• Precision Oscillators
• Threshold Detectors
• Process Control
• Battery Management Systems
• Servo Systems
taSVIN = +6.5V
aVIN VOUT
X60008-50
.DGND
0.1µF
10µF
0.001µF(*)
ww Serial
w .comBus
REF IN
Enable
SCK
SDAT
16 to 24-bit
A/D Converter
et4U(*)Also see Figure 3 in Applications Information
www.DataShe1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.







X60008A-50 pdf, 数据表
X60008A-50
load capacitances above .001µF the noise reduction
network shown in fig. 3 is recommended. This network
reduces noise sig-nificantly over the full bandwidth. As
shown in fig. 2, noise is reduced to less than 40µVp-p
from 1Hz to 1MHz using this network with a .01µF
capacitor and a 2kresistor in series with a 10µF
capacitor.
Figure 2.
400
350
300
250
200
150
100
50
0
1
X60008-50 NOISE REDUCTION
CL = 0
CL = .001µF
CL = .1µF
CL = .01µF & 10µF + 2k
10 100 1000 10000 100000
Figure 3.
VIN = 6.5V
.1µF
10µF
VIN
VO
X60008-50
GND
.01µF
2K
10µF
Turn-On Time
The X60008 devices have ultra-low supply current and
thus the time to bias up internal circuitry to final values
will be longer than with higher power references. Nor-
mal turn-on time is typically 7ms. This is shown in the
graph, Figure 4. Since devices can vary in supply cur-
rent down to 300nA, turn-on time can last up to about
12ms. Care should be taken in system design to
include this delay before measurements or conver-
sions are started.
Figure 4.
X60008-50 TURN-ON TIME (25°C)
7
6
5
4
IIN = 730nA
IIN = 500nA
3
IIN = 320nA
2
1
0
-1 1 3 5 7 9 11 13 15
TIME (mSec)
Temperature Coefficient
The limits stated for temperature coefficient (tempco)
are governed by the method of measurement. The
overwhelming standard for specifying the temperature
drift of a reference is to measure the reference voltage
at two temperatures, take the total variation, (VHIGH -
VLOW), and divide by the temperature extremes of
measurement (THIGH - TLOW). The result is divided
by the nominal reference voltage (at T = 25°C) and
multiplied by 106 to yield ppm/°C. This is the “Box”
method for determining temperature coefficient.
8 FN8139.0
March 15, 2005














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