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| 型号： | AD7715AR-5 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 22/40页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 5V 16-SOIC |
| 标准包装： | 47 |
| 位数： | 16 |
| 采样率（每秒）： | 500 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 9.5mW |
| 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： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分，单极；1 个差分，双极 |
| 配用： | EVAL-AD7715-3EBZ-ND - BOARD EVALUATION FOR AD7715 |
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AD7715
Rev. D | Page 29 of 40
Evaluating the AD7715 Performance
The recommended layout for the AD7715 is outlined in the
evaluation board for the AD7715. The evaluation board
package includes a fully assembled and tested evaluation board,
documentation, software for controlling the board over the USB
port of a PC and software for analyzing the performance of the
AD7715 on the PC. The evaluation board model number is
EVAL-AD7715-3EBZ .
Noise levels in the signals applied to the AD7715 may also affect
performance of the part. The AD7715 software evaluation
package allows the user to evaluate the true performance of the
part, independent of the analog input signal. The scheme
involves using a test mode on the part where the differential
inputs to the AD7715 are internally shorted together to provide
a zero differential voltage for the analog modulator. External to
the device, connect the AIN() input to a voltage which is
within the allowable common-mode range of the part. This
scheme should be used after a calibration has been performed
on the part.
DIGITAL INTERFACE
The programmable functions of the AD7715 are controlled
using a set of on-chip registers as outlined previously. Data is
written to these registers via the serial interface of the part and
read access to the on-chip registers is also provided by this
interface. All communications to the part must start with a
write operation to the communications register. After power-on
or RESET, the device expects a write to its communications
register. The data written to this register determines whether
the next operation to the part is a read or a write operation and
also determines to which register this read or write operation
occurs. Therefore, write access to any of the other registers on
the part starts with a write operation to the communications
register followed by a write to the selected register. A read
operation from any other register on the part (including the
output data register) starts with a write operation to the
communications register followed by a read operation from the
selected register.
The serial interface of the AD7715 consists of five signals, CS,
SCLK, DIN, DOUT, and DRDY. The DIN line is used for
transferring data into the on-chip registers while the DOUT
line is used for accessing data from the on-chip registers. SCLK
is the serial clock input for the device and all data transfers
(either on DIN or DOUT) take place with respect to this SCLK
signal. The DRDY line is used as a status signal to indicate when
data is ready to be read from the data register of the AD7715.
DRDY goes low when a new data word is available in the output
register. It is reset high when a read operation from the data
register is complete. It also goes high prior to the updating of
the output register to indicate when not to read from the device
to ensure that a data read is not attempted while the register is
being updated. CS is used to select the device. It can be used to
decode the AD7715 in systems where a number of parts are
connected to the serial bus.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7715AR-5REEL | 功能描述:IC ADC 16BIT SIGMA-DELTA 16-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 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 |
| AD7715ARU-3 | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 19.2ksps 16-bit Serial 16-Pin TSSOP |
| AD7715ARU-3REEL | 功能描述:IC ADC 16BIT SIGMA-DELTA 16TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 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 |
| AD7715ARU-3REEL7 | 功能描述:IC ADC 16BIT SIGMA-DELTA 16TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 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 |
| AD7715ARU-5 | 功能描述:IC ADC 16BIT SIGMA-DELTA 16TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 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 |
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