参数资料
| 型号： | AD7468BRT-R2 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/29页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT 1.6V LP SOT-23-6 |
| 标准包装： | 1 |
| 位数： | 8 |
| 采样率（每秒）： | 200k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 900µW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 剪切带 (CT) |
| 输入数目和类型： | 1 个单端，单极 |
| 其它名称： | AD7468BRT-R2CT |
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AD7466/AD7467/AD7468
Rev. C | Page 10 of 28
TIMING EXAMPLES
the Timing Specifications section.
Timing Example 1
100 kSPS gives a cycle time of tCONVERT + t8 + tQUIET = 10 μs.
Assuming VDD = 1.8 V, tCONVERT = t2 + 15(1/fSCLK) = 55 ns +
4.41 μs = 4.46 μs, and t8 = 60 ns maximum, then tQUIET = 5.48 μs,
which satisfies the requirement of 10 ns for tQUIET. The part is
fully powered up and the signal is fully acquired at Point A.
This means that the acquisition/power-up time is t2 + 2(1/fSCLK)
= 55 ns + 588 ns = 643 ns, satisfying the maximum requirement
of 640 ns for the power-up time.
Timing Example 2
The AD7466 can also operate with slower clock frequencies.
and a throughput of 50 kSPS gives a cycle time of tCONVERT + t8 +
tQUIET = 20 μs. With tCONVERT = t2 + 15(1/fSCLK) = 55 ns + 7.5 μs =
7.55 μs, and t8 = 60 ns maximum, this leaves tQUIET to be 12.39
μs, which satisfies the requirement of 10 ns for tQUIET. The part is
fully powered up and the signal is fully acquired at Point A,
which means the acquisition/power-up time is t2 + 2(1/fSCLK) =
55 ns + 1 μs = 1.05 μs, satisfying the maximum requirement of
640 ns for the power-up time. In this example and with other
slower clock values, the part is fully powered up and the signal
already acquired before the third SCLK falling edge; however,
the track-and-hold does not go into hold mode until that point.
In this example, the part can be powered up and the signal can
be fully acquired at approximately Point B in Figure 3.
SCLK
t2
tCONVERT
B
A
t8
tQUIET
1/THROUGHPUT
AUTOMATIC
POWER-DOWN
TRACK-AND-HOLD IN HOLD
TRACK-AND-HOLD
IN TRACK
ACQUISITION TIME
POINT A: THE PART IF FULLY POWERED UP WITH VIN FULLY ACQUIRED.
1
2
3
CS
4
5
13
14
15
16
02643-004
Figure 3. AD7466 Serial Interface Timing Diagram Example
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7468BRT-REEL | 制造商:AD 制造商全称:Analog Devices 功能描述:1.6 V, Micropower 12-/10-/8-Bit ADCs |
| AD7468BRT-REEL7 | 制造商:AD 制造商全称:Analog Devices 功能描述:1.6 V, Micropower 12-/10-/8-Bit ADCs |
| AD7468BRTZ-REEL | 功能描述:IC ADC 8BIT 1.6V LP SOT23-6 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7468BRTZ-REEL7 | 功能描述:IC ADC 8BIT 1.6V LP SOT23-6 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD746A | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Precision, 500 ns Settling, BiFET Op Amp |
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