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参数资料
| 型号： | EVAL-AD7352EDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/21页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL AD7352 |
| 标准包装： | 1 |
| ADC 的数量： | 2 |
| 位数： | 12 |
| 采样率（每秒）： | 3M |
| 数据接口： | 串行 |
| 输入范围： | ±VREF/2 |
| 在以下条件下的电源（标准）： | 26mW @ 3MSPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7352 |
| 已供物品： | 板，CD |
AD7352
Rev. A | Page 16 of 20
FULL POWER-DOWN MODE
Full power-down mode is intended for use in applications
where throughput rates slower than those in partial power-
down mode are required because power-up from a full power-
down takes substantially longer than that from a partial power-
down. This mode is more suited to applications in which a
series of conversions performed at a relatively high throughput
rate are followed by a long period of inactivity and, thus, power-
down. When the AD7352 is in full power-down mode, all
analog circuitry is powered down including the on-chip
reference and reference buffers. Full power-down mode is
entered in a similar way as partial power-down mode, except
that the timing sequence shown in Figure 25 must be executed
twice. The conversion process must be interrupted in a similar
fashion by bringing CS high anywhere after the second falling
edge of SCLK and before the 10th falling edge of SCLK. The
device enters partial power-down mode at this point.
To reach full power-down mode, the next conversion cycle must
be interrupted in the same way, as shown in Figure 27. When
CS is brought high in this window of SCLKs, the part fully
powers down. Note that it is not necessary to complete the 14 or
16 SCLKs once CS has been brought high to enter a power-
down mode.
To exit full power-down mode and power-up the AD7352,
perform a dummy conversion, similar to powering up from
partial power-down. On the falling edge of CS, the device begins to
power up as long as CS is held low until after the falling edge of
the 10th SCLK. The required power-up time must elapse before
a conversion can be initiated, as shown in
.
SCLK
CS
SDATAA
SDATAB
INVALID DATA
VALID DATA
110
14
1
THE PART BEGINS
TO POWER UP.
THE PART IS FULLY POWERED UP;
SEE THE POWER-UP TIMES SECTION.
tPOWER-UP1
07
04
4
-02
0
Figure 26. Exiting Partial Power-Down Mode
THREE-STATE
110
14
2
SCLK
CS
SDATAA
SDATAB
THREE-STATE
110
2
INVALID DATA
THE PART BEGINS
TO POWER UP.
THE PART ENTERS
PARTIAL POWER-DOWN MODE.
THE PART ENTERS
FULL POWER-DOWN MODE.
14
070
44
-02
1
Figure 27. Entering Full Power-Down Mode
SCLK
SDATAA
SDATAB
INVALID DATA
VALID DATA
1
10
14
1
THE PART BEGINS
TO POWER UP.
tPOWER-UP2
CS
07
04
4-
0
22
THE PART IS FULLY POWERED UP;
SEE THE POWER-UP TIMES SECTION.
Figure 28. Exiting Full Power-Down Mode
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| EVAL-AD7366CBZ | 功能描述:BOARD EVALUATION FOR AD7366 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:iCMOS® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7366SDZ | 功能描述:BOARD EVAL FOR AD7366 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:iCMOS® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7367CBZ | 制造商:AD 制造商全称:Analog Devices 功能描述:True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-Channel SAR ADCs |
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