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參數(shù)資料
| 型號(hào)： | MAX106 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 【5V, 600Msps, 8-Bit ADC with On-Chip 2.2GHz Bandwidth Track/Hold Amplifier |
| 中文描述： | ±5V、600Msps、8位ADC，帶有片上2.2GHz帶寬采樣/保持放大器 |
| 文件頁(yè)數(shù)： | 24/32頁(yè) |
| 文件大?。?/td> | 758K |
| 代理商： | MAX106 |
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M
±5V, 600Msps, 8-Bit ADC with On-Chip
2.2GHz Bandwidth Track/Hold Amplifier
24
______________________________________________________________________________________
determining the die temperature is to measure each
current with an ammeter (which shuts off the internal
catch diodes) referenced to GNDI. The die temperature
in °C is then calculated by the expression:
Another method of determining the die temperature
uses the operational amplifier circuit shown in Figure
20. The circuit produces a voltage that is proportional
to the die temperature. A possible application for this
signal is speed control for a cooling fan to maintain
constant MAX106 die temperature. The circuit operates
by converting the I
CONST
and I
PTAT
currents to volt-
ages V
CONST
and V
PTAT
, with appropriate scaling to
account for their equal values at +27°C. This voltage
difference is then amplified by two amplifiers in an
instrumentation-amplifier configuration with adjustable
gain. The nominal value of the circuit gain is 4.5092V/V.
The gain of the instrumentation amplifier is given by the
expression:
V
V
CONST
To calibrate the circuit, first connect pins 2-3 on JU1 to
zero the input of the PTAT path. With the MAX106 pow-
ered up, adjust potentiometer R3 until the voltage at the
V
TEMP
output is -2.728V. Connecting pins 1-2 on JU1
restores normal operation to the circuit after the calibra-
tion is complete. The voltage at the V
TEMP
node will
then be proportional to the actual MAX106 die tempera-
ture according to the equation:
The overall accuracy of the die temperature measure-
ment using the operational-amplifier scaling circuitry is
limited mainly by the accuracy and matching of the
resistors in the circuit.
Thermal Management
Depending on the application environment for the
ESBGA-packaged MAX106, the customer may have to
apply an external heatsink to the package after board
assembly. Existing open-tooled heatsinks are available
from standard heatsink suppliers (listed in Heatsink
Manufacturers). The heatsinks are available with preap-
plied adhesive for easy package mounting.
T
( C)
100 V
DIE
TEMP
=
A
V
A
R
R
R
R
V
TEMP
PTAT
V
1
+
=
=
+
1
2
2
1
3
T
300
I
I
DIE
PTAT
CONST
V
CONST
V
TEMP
R1
7.5k
R2
15k
R2
15k
3.32k
5k
R1
7.5k
6.65k
6.65k
6.05k
12.1k
12.1k
1
2
3
JU1
10-TURN
I
PTAT
V
PTAT
I
CONST
1/4 MAX479
1/4 MAX479
1/4 MAX479
1/4 MAX479
Figure 20. Die Temperature-Acquisition Circuit with the MAX479
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相關(guān)代理商/技術(shù)參數(shù) |
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| MAX1060 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:400ksps, +5V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface |
| MAX1060ACEI | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1060ACEI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 5V 10Bit 8Ch 400ksps w/2.5V Ref & Prl Int RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1060ACEI+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 5V 10Bit 8Ch 400ksps w/2.5V Ref & Prl Int RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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