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參數(shù)資料
| 型號： | EVAL-AD5522EBUZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 55/64頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR 12X12MM AD5522 |
| 標準包裝： | 1 |
| 主要目的： | 測試與測量，參數(shù)測量單元（PMU） |
| 已用 IC / 零件： | AD5522 |
| 已供物品： | 板 |
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Data Sheet
AD5522
Rev. E | Page 59 of 64
CHANGING MODES
There are different ways of handling a mode change.
1. Load any DAC X1 values that require changes. Remember
that for force amplifier and comparator DACs, X1 registers
are available per voltage and current range, so the user can
preload new DAC values to make DAC updates ahead of
time; the calibration engine calculates the X2 values and
stores them.
2. Change to the new PMU mode (FI or FV). This action
loads the new switch conditions to the PMU circuitry and
loads the DAC register with the stored X2 data.
The following steps describe another method for changing modes:
1. In the PMU register (Bit 20 and Bit 19), enable the high-Z
voltage or high-Z current mode to make the amplifier high
impedance (SW5 open).
2. Load any DAC X1 values that require changes. Remember
that for force amplifier and comparator DACs, X1 registers
are available per voltage and current range, so the user can
preload new DAC values to make DAC updates ahead of
time; the calibration engine calculates the X2 values and
stores them.
3. When the high-Z (voltage or current) mode is used, the
relevant DAC outputs are automatically updated (FIN,
CLL, and CLH DACs). For example, in high-Z voltage
mode, when new X1 writes occur, the FIN voltage X2 result
is calculated, cached, and loaded to the FIN DAC. When
forcing a voltage, current clamps are engaged, so the CLL
current register can be loaded, and the gain and offset
corrected and loaded to the DAC register. (The CLH
current register works the same way.)
4. Change to the new PMU mode (FI or FV). This action
loads the new switch conditions to the PMU circuitry.
Because the DAC outputs are already loaded, transients are
minimized when changing current or voltage mode.
REQUIRED EXTERNAL COMPONENTS
The minimum required external components for use with
the AD5522 are shown in Figure 58. Decoupling is greatly
dependent on the type of supplies used, other decoupling on
the board, and the noise in the system. It is possible that more
or less decoupling may be required.
DUTGND
DUT
EXTMEASIH3
EXTMEASIL3
FOH3
EXTFOH3
CCOMP[0:3]
VREF
MEASVH3
CFF3
REF
AVDD
AVSS
DVCC
AVDD
AVSS
DVCC
DUT
EXTMEASIH2
EXTMEASIL2
FOH2
EXTFOH2
MEASVH2
CFF2
DUT
EXTMEASIH0
EXTMEASIL0
FOH0
EXTFOH0
MEASVH0
CFF0
DUT
EXTMEASIH1
EXTMEASIL1
FOH1
EXTFOH1
MEASVH1
CFF1
10F
0.1F
06197-
037
RSENSE
(UP TO
±80mA)
RSENSE
(UP TO
±80mA)
RSENSE
(UP TO
±80mA)
RSENSE
(UP TO
±80mA)
Figure 58. External Components Required for Use with the AD5522
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| EVAL-AD5532EBZ | 功能描述:BOARD EVAL FOR AD5532 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數(shù)模轉換器 (DAC) 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- DAC 的數(shù)量:4 位數(shù):12 采樣率（每秒）:- 數(shù)據(jù)接口:串行，SPI? 設置時間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| EVAL-AD5532HSEBZ | 功能描述:BOARD EVAL FOR AD5532HS RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數(shù)模轉換器 (DAC) 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- DAC 的數(shù)量:4 位數(shù):12 采樣率（每秒）:- 數(shù)據(jù)接口:串行，SPI? 設置時間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
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| EVAL-AD5535BEBZ | 功能描述:數(shù)據(jù)轉換 IC 開發(fā)工具 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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