- 您现在的位置：买卖IC网 > PDF目录10212 > AD7952BSTZRL (Analog Devices Inc)IC ADC 14BIT DIFF 1MSPS 48-LQFP PDF资料下载
参数资料
| 型号： | AD7952BSTZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/32页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT DIFF 1MSPS 48-LQFP |
| 标准包装： | 2,000 |
| 系列： | PulSAR® |
| 位数： | 14 |
| 采样率（每秒）： | 1M |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 260mW |
| 电压电源： | 模拟和数字，双 ± |
| 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： | 带卷 (TR) |
| 输入数目和类型： | 1 个差分，双极 |
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页第16页当前第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页第29页第30页第31页第32页
AD7952
Data Sheet
Rev. A | Page 24 of 32
INTERFACES
DIGITAL INTERFACE
The AD7952 has a versatile digital interface that can be set up
as either a serial or a parallel interface with the host system. The
serial interface is multiplexed on the parallel data bus. The AD7952
digital interface also accommodates 2.5 V, 3.3 V, or 5 V logic. In
most applications, the OVDD supply pin is connected to the host
system interface 2.5 V to 5.25 V digital supply. Finally, by using
the OB/2C input pin, both twos complement or straight binary
coding can be used.
Two signals, CS and RD, control the interface. When at least
one of these signals is high, the interface outputs are in high
impedance. Usually, CS allows the selection of each AD7952 in
multicircuit applications and is held low in a single AD7952
design. RD is generally used to enable the conversion result on
the data bus.
RESET
The RESET input is used to reset the AD7952. A rising edge on
RESET aborts the current conversion (if any) and tristates the
data bus. The falling edge of RESET resets the AD7952 and
clears the data bus and configuration register. See Figure 35 for
the RESET timing details.
t9
t8
RESET
DATA
BUS
BUSY
CNVST
0
6
589
-03
4
Figure 35. RESET Timing
PARALLEL INTERFACE
The AD7952 is configured to use the parallel interface when
SER/PAR is held low.
Master Parallel Interface
Data can be continuously read by tying CS and RD low, thus
requiring minimal microprocessor connections. However, in
this mode, the data bus is always driven and cannot be used in
shared bus applications (unless the device is held in RESET).
Figure 36 details the timing for this mode.
t1
BUSY
DATA
BUS
PREVIOUS CONVERSION DATA
NEW DATA
CNVST
CS = RD = 0
t10
t4
t11
t3
0658
9-
035
Figure 36. Master Parallel Data Timing for Reading (Continuous Read)
Slave Parallel Interface
In slave parallel reading mode, the data can be read either after
each conversion, which is during the next acquisition phase, or
during the following conversion, as shown in Figure 37 and
Figure 38, respectively. When the data is read during the conver-
sion, it is recommended that it is read-only during the first half
of the conversion phase. This avoids any potential feedthrough
between voltage transients on the digital interface and the most
critical analog conversion circuitry.
CURRENT
CONVERSION
t13
t12
BUSY
DATA
BUS
RD
CS
06
58
9-
03
6
Figure 37. Slave Parallel Data Timing for Reading (Read After Convert)
PREVIOUS
CONVERSION
t13
t12
t3
BUSY
DATA
BUS
CNVST,
RD
CS = 0
t4
t1
06
58
9-
0
37
Figure 38. Slave Parallel Data Timing for Reading (Read During Convert)
相关PDF资料 |
PDF描述 |
|---|---|
| LTC2280CUP#TRPBF | IC ADC DUAL 10BIT 105MSPS 64-QFN |
| SP3084EEN-L/TR | IC TXRX RS485/RS422 ESD 8NSOIC |
| AD7357BRUZ-RL | IC ADC 14BITDUAL 4.MSPS 16TSSOP |
| SP3083EEN-L/TR | IC TXRX RS485/RS422 ESD 14NSOIC |
| SP3081EEN-L/TR | IC TXRX RS485/RS422 ESD 8NSOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD795AH | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Feedback Operational Amplifier |
| AD795BH | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Feedback Operational Amplifier |
| AD795JN | 制造商:Analog Devices 功能描述:Operational Amplifier, Single AMP, Bipolar/JFET, 8 Pin, Plastic, DIP |
| AD795JR | 功能描述:IC OPAMP JFET 1.6MHZ LN 8SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:Excalibur™ 放大器类型:J-FET 电路数:1 输出类型:- 转换速率:45 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:20pA 电压 - 输入偏移:490µV 电流 - 电源:1.7mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:带卷 (TR) |
| AD795JR-REEL | 功能描述:IC OPAMP JFET 1.6MHZ LN 8SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:13 V/µs 增益带宽积:3MHz -3db带宽:- 电流 - 输入偏压:65pA 电压 - 输入偏移:3000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。