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参数资料
| 型号： | AD7264BSTZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/29页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 2CH 1MSPS 48LQFP |
| 标准包装： | 500 |
| 位数： | 14 |
| 采样率（每秒）： | 1M |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 175mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 105°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： | * |
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Data Sheet
AD7264
Rev. B | Page 19 of 28
06732-
028
RS
RF
Cx–
Cx+
RS
SENSOR
COUTx
Figure 28. Recommended Comparator Connection Diagram
APPLICATION DETAILS
The AD7264 has been specifically designed to meet the require-
ments of any motor control shaft position feedback loop. The
device can interface directly to multiple sensor types, including
optical encoders, magnetoresistive sensors, and Hall effect sensors.
Its flexible analog inputs, which incorporate programmable gain,
ensure that identical board design can be utilized for a variety of
sensors, which results in reduced design cycles and costs.
The two simultaneous sampling ADCs are used to sample the
sine and cosine outputs from the sensor. No external buffering
is required between the sensor/transducer and the analog inputs
of the AD7264. The on-chip comparators can be used to
monitor the pole sensors, which can be Hall effect sensors or
the inner tracks from an optical encoder.
Figure 29 shows how the AD7264 can be used in a typical
application. An optical encoder is shown in Figure 29, but other
sensor types could as easily be used. Figure 29 indicates a typical
application configuration only; there are several other
configurations that render equally effective results.
VA+
VA–
VB+
VB–
VREFB
Z
B
A
U
V
W
COMP
H.E.
CB+
CB–
CA+
CA–
CD+
CD–
CC+
CC–
CA_CBVCC
CA_CB_GND
CC_CDVCC
CC_CD_GND
06732-
029
AGND
DGND
DOUTB
PD1
PD0/DIN
PD2
VREFA
AVCC
COMP
COUTC
COUTB
COUTA
COUTD
DOUTA
PGA
T/H
BUF
T/H
BUF
PGA
14-BIT
SUCCESSIVE
APPROXIMATION
ADC
REF
14-BIT
SUCCESSIVE
APPROXIMATION
ADC
CONTROL
LOGIC
OUTPUT
DRIVERS
OUTPUT
DRIVERS
OUTPUT
DRIVERS
OUTPUT
DRIVERS
VDRIVE
G3
G2
G1
G0
CAL
CS
SCLK
REFSEL
AD7264
OUTPUT
DRIVERS
OUTPUT
DRIVERS
Figure 29. Typical System Connection Diagram with Optical Encoder
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| AD7265BCPZ | 功能描述:IC ADC 12BIT SRL 1MSPS 32LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 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 |
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