- 您现在的位置：买卖IC网 > PDF目录10656 > AD7674ASTZ (Analog Devices Inc)IC ADC 18BIT 800KSPS 48-LQFP PDF资料下载
参数资料
| 型号： | AD7674ASTZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 18BIT 800KSPS 48-LQFP |
| 产品培训模块： | ADC Applications ADC Architectures ADC DC/AC Performance |
| 标准包装： | 1 |
| 系列： | PulSAR® |
| 位数： | 18 |
| 采样率（每秒）： | 800k |
| 数据接口： | 串行，并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 138mW |
| 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-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 托盘 |
| 输入数目和类型： | 1 个差分，双极 |
| 产品目录页面： | 778 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7674CBZ-ND - BOARD EVALUATION FOR AD7674 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
AD7674
Rev. A | Page 23 of 28
degradation of the conversion result could occur. This is
particularly important during the second half of the conversion
phase because the AD7674 provides error correction circuitry
that can correct for an improper bit decision made during the
first half of the conversion phase. For this reason, it is
recommended that when an external clock is being provided, it
is a discontinuous clock that only toggles when BUSY is low or,
more importantly, that it does not transition during the latter
half of BUSY high.
External Discontinuous Clock Data Read after
Conversion
Though maximum throughput cannot be achieved using this
mode, it is the most recommended of the serial slave modes.
Figure 42 shows the detailed timing diagrams of this method.
After a conversion is complete, indicated by BUSY returning
low, the result of this conversion can be read while both CS and
RD are low. Data is shifted out MSB first with 18 clock pulses,
and is valid on the rising and falling edge of the clock.
Among the advantages of this method, the conversion
performance is not degraded because there are no voltage
transients on the digital interface during the conversion process.
Also, data can be read at speeds up to 40 MHz, accommodating
both slow digital host interface and the fastest serial reading.
Finally, in this mode only, the AD7674 provides a daisy-chain
feature using the RDC/SDIN input pin to cascade multiple
converters together. This feature is useful for reducing
component count and wiring connections when desired (for
instance, in isolated multiconverter applications).
An example of the concatenation of two devices is shown in
Figure 44. Simultaneous sampling is possible by using a
common CNVST signal. It should be noted that the RDC/SDIN
input is latched on the edge of SCLK opposite the one used to
shift out data on SDOUT. Thus, the MSB of the upstream
converter follows the LSB of the downstream converter on the
next SCLK cycle.
SCLK
SDOUT
D17
D16
D1
D0
D15
X17
X16
X15
X1
X0
Y17
Y16
BUSY
SDIN
INVSCLK = 0
X17
X16
X
12
3
16
17
18
19
20
EXT/INT = 1
RD = 0
t35
t36 t37
t31
t32
t34
t16
t33
CS
03083-0-042
Figure 42. Slave Serial Data Timing for Reading (Read after Convert)
相关PDF资料 |
PDF描述 |
|---|---|
| AD7984BRMZ | IC ADC 18BIT 1.3MSPS SAR 10MSOP |
| MAX9040AEUK+T | IC COMPARATOR SNGL SOT23-5 |
| AD7671ASTZ | IC ADC 16BIT CMOS 1MSPS 48-LQFP |
| MAX9013EUA+T | IC COMPARATOR TTL 8-UMAX |
| MAX9013ESA+T | IC COMPARATOR TTL 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7674ASTZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC |
| AD7674ASTZL | 制造商:AD 制造商全称:Analog Devices 功能描述:18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC |
| AD7674ASTZRL | 功能描述:IC ADC 18BIT 800KSPS 48-LQFP T/R 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 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD7675 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 100 kSPS, Differential ADC |
| AD7675ACP | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 16-bit Parallel/Serial 48-Pin LFCSP EP |
发布紧急采购，3分钟左右您将得到回复。