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参数资料
| 型号： | AD7988-1BCPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT SRL 100KSPS 10LFCSP |
| 标准包装： | 5,000 |
| 系列： | PulSAR® |
| 位数： | 16 |
| 采样率（每秒）： | 100k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘，CSP |
| 供应商设备封装： | 10-LFCSP-WD（3x3） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个伪差分，单极 |
Data Sheet
AD7988-1/AD7988-5
Rev. D | Page 19 of 24
CS MODE 4-WIRE
This mode is typically used when multiple AD7988-x devices
are connected to an SPI-compatible digital host.
A connection diagram example using two AD7988-x devices is
shown in Figure 36, and the corresponding timing is given in
With SDI high, a rising edge on CNV initiates a conversion,
selects the CS mode, and forces SDO to high impedance. In this
mode, CNV must be held high during the conversion phase and
the subsequent data readback (if SDI and CNV are low, SDO is
driven low). Prior to the minimum conversion time, SDI can be
used to select other SPI devices, such as analog multiplexers,
but SDI must be returned high before the minimum conversion
time elapses and then held high for the maximum conversion time.
When the conversion is complete, the AD7988-x enters the
acquisition phase and powers down. Each ADC result can
be read by bringing its SDI input low, which consequently
outputs the MSB onto SDO. The remaining data bits are then
clocked by subsequent SCK falling edges. The data is valid on
both SCK edges. Although the rising edge can be used to capture
the data, a digital host using the SCK falling edge allows a faster
reading rate, provided that it has an acceptable hold time. After
the 16th SCK falling edge or when SDI goes high, whichever is
earlier, SDO returns to high impedance and another AD7988-x
can be read.
DIGITAL HOST
CONVERT
CLK
DATA IN
AD7988-1/
AD7988-5
SDO
CNV
SCK
AD7988-1/
AD7988-5
SDO
CNV
SCK
CS1
CS2
SDI
10231-
037
Figure 36. 4-Wire CS Mode Connection Diagram
tCONV
tCYC
ACQUISITION
tACQ
tSCK
tSCKH
tSCKL
CONVERSION
SCK
CNV
tSSDICNV
tHSDICNV
SDO
D15
D13
D14
D1
D0
D15
D14
D1
D0
tHSDO
tEN
1
2
3
14
15
16
17
18
30
31
32
tDSDO
tDIS
SDI (CS1)
SDI (CS2)
10231-
038
Figure 37. 4-Wire CS Mode Serial Interface Timing
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相关代理商/技术参数 |
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| AD7988-1BCPZ-RL7 | 功能描述:IC ADC 16BIT SRL 100KSPS 10LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7988-1BRMZ | 功能描述:ADC 16BIT 100KSPS 1.25LSB 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7988-1BRMZ-RL7 | 功能描述:IC ADC 16BIT SRL 100KSPS 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7988-5 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit Lower Power |
| AD7988-5BCPZ | 制造商:Analog Devices 功能描述:ADC 500KSPS 16BIT SPI 10LFCSP 制造商:Analog Devices 功能描述:ADC, 500KSPS, 16BIT, SPI, 10LFCSP 制造商:Analog Devices 功能描述:ADC, 500KSPS, 16BIT, SPI, 10LFCSP; Resolution (Bits):16bit; Sampling Rate:500kSPS; Digital IC Case Style:QFN; No. of Pins:10; Input Channel Type:Pseudo Differential; Data Interface:Microwire, QSPI, SPI; Operating Temperature ;RoHS Compliant: Yes |
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