参数资料
| 型号： | AD5748ACPZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 22/32页 |
| 文件大小： | 0K |
| 描述： | IC I/V OUTPUT DRIVER 32LFCSP |
| 标准包装： | 1,500 |
| 放大器类型： | 仪表 |
| 电路数： | 1 |
| 转换速率： | 2 V/µs |
| 电流 - 输出 / 通道： | 15mA |
| 电压 - 电源，单路/双路(±)： | ±12 V ~ 24 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-VQ（5x5） |
| 包装： | 带卷 (TR) |
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AD5748
Rev. A | Page 29 of 32
CURRENT SETTING RESISTOR
the voltage-to-current conversion circuitry. The nominal value
of the internal current sense resistor is 15 kΩ. To allow for over-
range capability in current mode, the user can also select the
internal current sense resistor to be 14.7 kΩ, giving a nominal
2% overrange capability. This feature is available in the 0 mA
to 21 mA and 4 mA to 21 mA current ranges.
The stability of the output current value over temperature is
dependent on the stability of the value of RSET. As a method of
improving the stability of the output current over temperature,
an external low drift resistor can be connected to the REXT1
and REXT2 pins of the AD5748, which can be used instead of
the internal resistor. The external resistor is selected via the
input shift register. If the external resistor option is not used,
the REXT1 and REXT2 pins should be left floating.
PACKET ERROR CHECKING
To verify that data has been received correctly in noisy environ-
ments, the AD5748 offers the option of error checking based on
an 8-bit (CRC-8) cyclic redundancy check. The device controlling
the AD5748 should generate an 8-bit frame check sequence
using the following polynomial:
C(x) = x8 + x2 + x1 + 1
This is added to the end of the data-word, and 24 data bits are
sent to the AD5748 before taking SYNC high. If the AD5748
receives a 24-bit data frame, it performs the error check when
SYNC goes high. If the check is valid, then the data is written
to the selected register. If the error check fails, the FAULT pin
goes low and Bit D3 of the status register is set. After reading
this register, this error flag is cleared automatically and the
FAULT pin goes high again.
SCLK
SDIN
SYNC
UPDATE ON SYNC HIGH
D15
(MSB)
D0
(LSB)
16-BIT DATA
16-BIT DATA TRANSER—NO ERROR CHECKING
SCLK
SDIN
SYNC
FAULT
UPDATE AFTER SYNC HIGH
ONLY IF ERROR CHECK PASSED
FAULT GOES LOW IF
ERROR CHECK FAILS
D23
(MSB)
D8
(LSB)
D7
D0
16-BIT DATA
8-BIT FCS
16-BIT DATA TRANSER WITH ERROR CHECKING
089
22-
055
Figure 53. PEC Error Checking Timing
相关PDF资料 |
PDF描述 |
|---|---|
| AD5749ACPZ | IC CURRENT OUT DVR 32-LFCSP |
| AD5750-1ACPZ-REEL7 | IC CURR/VOLT OUT DVR 32LFCSP |
| AD5750-2BCPZ-RL7 | IC CURR/VOLT OUT DRVR 32LFCSP |
| AD5751ACPZ-REEL7 | IC I/V OUTPUT DRIVER 60V 32LFCSP |
| AD582SD | IC AMP SAMPLE HOLD 25MA 14CDIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5749 | 制造商:AD 制造商全称:Analog Devices 功能描述:Industrial Current Out Driver, Single-Supply, 55 V Maximum Supply, Programmable Ranges |
| AD5749ACPZ | 功能描述:IC CURRENT OUT DVR 32-LFCSP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:MicroAmplifier™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:3.5 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:5pA 电压 - 输入偏移:1500µV 电流 - 电源:220µA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):4.5 V ~ 36 V，±2.25 V ~ 18 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:剪切带 (CT) 其它名称:296-29363-1 |
| AD5749ACPZ-RL7 | 功能描述:IC CURRENT OUT DVR 32-LFCSP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
| AD574A | 制造商:AD 制造商全称:Analog Devices 功能描述:Complete 12-Bit A/D Converter |
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