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參數(shù)資料
| 型號： | EVAL-AD7323CBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 25/37頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7323CBZ |
| 標準包裝： | 1 |
| 系列： | iCMOS® |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | ±10 V |
| 在以下條件下的電源（標準）： | 17mW @ 500kSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7323 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | AD7323BRUZ-REEL-ND - IC ADC 12BIT+SAR 4CHAN 16-TSSOP AD7323BRUZ-REEL7-ND - IC ADC 12BIT+ SAR 4CHAN 16TSSOP AD7323BRUZ-ND - IC ADC 12BIT+ SAR 4CHAN 16TSSOP |
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AD7323
Data Sheet
Rev. B | Page 30 of 36
AUTOSHUTDOWN MODE (PM1 = 1, PM0 = 0)
Once the autoshutdown mode is selected, the AD7323 auto-
matically enters shutdown on the 15th SCLK rising edge. In
autoshutdown mode, all internal circuitry is powered down.
The AD7323 retains information in the registers during
autoshutdown. The track-and-hold is in hold mode during
autoshutdown. On the rising CS edge, the track-and-hold,
which was in hold during shutdown, returns to track as the
AD7323 begins to power up. The power-up from autoshutdown
is 500 s.
When the control register is programmed to transition to
autoshutdown mode, it does so on the 15th SCLK rising edge.
Figure 48 shows the part entering autoshutdown mode. The
AD7323 automatically begins to power up on the CS rising
edge. The tPOWER-UP is required before a valid conversion, initiated
by bringing the CS signal low, can take place. Once this valid
conversion is complete, the AD7323 powers down again on the
15th SCLK rising edge. The CS signal must remain low again to
keep the part in autoshutdown mode.
AUTOSTANDBY MODE (PM1 = 0, PM0 = 1)
In autostandby mode, portions of the AD7323 are powered
down, but the on-chip reference remains powered up. The
reference bit in the control register should be 1 to ensure that
the on-chip reference is enabled. This mode is similar to auto-
shutdown but allows the AD7323 to power up much faster,
which allows faster throughput rates.
As is the case with autoshutdown mode, the AD7323 enters
standby on the 15th SCLK rising edge once the control register is
updated (see Figure 48). The part retains information in the
registers during standby. The AD7323 remains in standby until
it receives a CS rising edge. The ADC begins to power up on the
CS rising edge. On the CS rising edge, the track-and-hold, which
was in hold mode while the part was in standby, returns to track.
The power-up time from standby is 750 ns. The user should
ensure that 750 ns have elapsed before bringing CS low to attempt
a valid conversion. Once this valid conversion is complete, the
The CS signal must remain low to keep the part in standby mode.
Figure 48 shows the part entering autoshutdown mode. The
sequence of events is the same when entering autostandby mode.
In Figure 48, the power management bits are configured for
autoshutdown. For autostandby mode, the power management
bits, PM1 and PM0, should be set to 0 and 1, respectively.
CS
1
16
15
1
16
15
SCLK
SDATA
DIN
VALID DATA
DATA INTO CONTROL REGISTER
tPOWER-UP
CONTROL REGISTER IS LOADED ON THE FIRST 15 CLOCKS,
PM1 = 1, PM0 = 0
PART ENTERS SHUTDOWN MODE
ON THE 15TH RISING SCLK EDGE
AS PM1 = 1, PM0 = 0
PART BEGINS TO POWER
UP ON CS RISING EDGE
THE PART IS FULLY POWERED UP
ONCE
tPOWER-UP HAS ELAPSED
05400-
042
Figure 48. Entering Autoshutdown/Autostandby Mode
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參數(shù)描述 |
|---|---|
| EVAL-AD7324CB | 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC |
| EVAL-AD7324CBZ | 功能描述:BOARD EVALUATION FOR AD7324CBZ RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:iCMOS® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7327CB | 制造商:AD 制造商全稱:Analog Devices 功能描述:500 kSPS, 8-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC |
| EVAL-AD7327CBZ | 功能描述:BOARD EVALUATION FOR AD7327 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:iCMOS® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7327SDZ | 功能描述:BOARD EVAL FOR AD7327SDZ RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:* 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
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