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參數(shù)資料
| 型號： | ISL60007BIB825Z |
| 廠商： | INTERSIL CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Precision 2.50V, 1.08U-Watt, High Precision FGA Voltage References |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO8 |
| 封裝： | ROHS COMPLIANT, SOIC-8 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 246K |
| 代理商： | ISL60007BIB825Z |
6
FN8087.3
April 21, 2006
Applications Information
FGA Technology
The ISL60007 series of voltage references use the floating
gate technology to create references with very low drift and
supply current. Essentially the charge stored on a floating
gate cell is set precisely in manufacturing. The reference
voltage output itself is a buffered version of the floating gate
voltage. The resulting reference device has excellent
characteristics which are unique in the industry: very low
temperature drift, high initial accuracy, and almost zero
supply current. Also, the reference voltage itself is not limited
by voltage bandgaps or zener settings, so a wide range of
reference voltages can be programmed (standard voltage
settings are provided, but customer-specific voltages are
available).
The process used for these reference devices is a floating
gate CMOS process, and the amplifier circuitry uses CMOS
transistors for amplifier and output transistor circuitry. While
providing excellent accuracy, there are limitations in output
noise level and load regulation due to the MOS device
characteristics. These limitations are addressed with circuit
techniques discussed in other sections.
Nanopower Operation
Reference devices achieve their highest accuracy when
powered up continuously, and after initial stabilization has
taken place. This drift can be eliminated by leaving the
power on continuously.
The ISL60007 is the first high precision voltage reference
with ultra low power consumption that makes it possible to
leave power on continuously in battery operated circuits. The
ISL60007 consumes extremely low supply current due to the
proprietary FGA technology. Supply current at room
temperature is typically 400nA which is 1 to 2 orders of
magnitude lower than competitive devices. Application
circuits using battery power will benefit greatly from having
an accurate, stable reference which essentially presents no
load to the battery.
In particular, battery powered data converter circuits that
would normally require the entire circuit to be disabled when
not in use can remain powered up between conversions as
shown in Figure 15. Data acquisition circuits providing 12 to
24 bits of accuracy can operate with the reference device
continuously biased with no power penalty, providing the
highest accuracy and lowest possible long term drift.
Other reference devices consuming higher supply currents
will need to be disabled in between conversions to conserve
battery capacity. Absolute accuracy will suffer as the device
is biased and requires time to settle to its final value, or, may
not actually settle to a final value as power on time may be
short.
FIGURE 13. Z
OUT
vs f vs C
L
FIGURE 14. V
OUT
NOISE
Typical Performance Curves, 2.5V Reference
V
IN
= 3.0V, I
OUT
= 0mA, T
A
= 25°C
Unless Otherwise Specified
(Continued)
0
20
40
60
80
100
120
140
1
10
100
FREQUENCY (Hz)
1k
10k
100k
Z
O
Ω
)
NO
LOAD
1nF LOAD
10nF LOAD
100nF LOAD
10s/DIV
1
V
IN
= +3.0V
0.001μF-0.01μF
SERIAL
BUS
V
IN
V
OUT
ISL60007
GND
REF IN
ENABLE
SCK
SDAT
12 TO 24-BIT
A/D CONVERTER
0.01μF
10μF
FIGURE 15.
ISL60007
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL60007CIB812 | 制造商:Intersil Corporation 功能描述:1.25V REFERENCE, I/A=+/-0.5MV, T/C=5PPM, -40 TO +85 DEGC, 8L - Rail/Tube |
| ISL60007CIB812-TK | 制造商:Intersil Corporation 功能描述:1.25V REFERENCE, I/A=+/-0.5MV, T/C=5PPM, -40 TO +85 DEGC, 8L - Tape and Reel |
| ISL60007CIB812Z | 制造商:Intersil Corporation 功能描述:PB-FREE 1.25V REFERENCE, I/A=+/-0.5MV, T/C=5PPM, -40 TO +85 - Rail/Tube |
| ISL60007CIB812Z-TK | 制造商:Intersil Corporation 功能描述:PB-FREE 1.25V REFERENCE, I/A=+/-0.5MV, T/C=5PPM, -40 TO +85 - Tape and Reel |
| ISL60007CIB825 | 功能描述:IC VREF SERIES PREC 2.5V 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:FGA™ 標準包裝:3,000 系列:- 基準類型:旁路，精度 輸出電壓:5V 容差:±0.5% 溫度系數(shù):100ppm/°C 輸入電壓:- 通道數(shù):1 電流 - 陰極:80µA 電流 - 靜態(tài):- 電流 - 輸出:15mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:TO-236-3，SC-59，SOT-23-3 供應商設備封裝:SOT-23-3 包裝:帶卷 (TR) 其它名稱:LM4040CIM3-5.0MLTRLM4040CIM3-5.0MLTR-ND |
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