参数资料
| 型号： | AD660BN |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC DAC 16BIT MONO W/VREF 24-DIP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 15 |
| 系列： | DACPORT® |
| 设置时间： | 6µs |
| 位数： | 16 |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字，双 ± |
| 功率耗散（最大）： | 625mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 24-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 24-PDIP |
| 包装： | 管件 |
| 输出数目和类型： | 1 电压，单极；1 电压，双极 |
| 采样率（每秒）： | 167k |
AD660
Rev. B | Page 14 of 20
DIGITAL CIRCUIT DETAILS
The AD660 has several dual-use pins that allow flexible opera-
tion while maintaining the lowest possible pin count and
consequently the smallest package size. The user should,
therefore, pay careful attention to the following information
when applying the AD660.
Data can be loaded into the AD660 in serial or byte mode,
described as follows.
Serial mode operation is enabled by bringing SER (Pin 17) low.
This changes the function of DB0 (Pin 12) to that of the serial
input pin, SIN. It also changes the function of DB1 (Pin 11) to
a control input that tells the AD660 whether the serial data is
going to be loaded MSB or LSB first.
In serial mode, HBE and LBE are effectively disabled except
for the dual function of LBE, which is to control whether the
asynchronous clear function goes to unipolar or bipolar zero.
(A low on LBE, when CLR is strobed, sends the DAC output
to unipolar zero, a high to bipolar zero.) The AD660 does not
recognize the status of HBE when in serial mode.
Data is clocked into the input register on the rising edge of CS,
as shown in Figure 3. The data then resides in the first rank latch
and can be loaded into the DAC latch by taking LDAC high.
This causes the DAC to change to the appropriate output value.
It should be noted that the CLR function clears the DAC latch
but does not clear the first rank latch. Therefore, the data that
was previously residing in the first rank latch can be reloaded
simply by bringing LDAC high after the event that necessitated
CLR to be strobed has ended. Alternatively, new data can be
loaded into the first rank latch if desired.
The serial out pin (SOUT) can be used to daisy-chain several DACs
together in multiDAC applications to minimize the number of
isolators being used to cross an intrinsic safety barrier. The first
rank latch acts like a 16-bit shift register, and repeated strobing
of CS shifts the data out through SOUT and into the next DAC.
Each DAC in the chain requires its own LDAC signal unless all
of the DACs are to be updated simultaneously.
Byte mode operation is enabled simply by keeping SER high,
which configures DB0 to DB7 as data inputs. In this mode, HBE
and LBE are used to identify the data as either the high byte or
the low byte of the 16-bit input word. (The user can load the
data, in any order, into the first rank latch.) As in the serial mode
case, the status of LBE, when CLR is strobed, determines whether
the AD660 clears to unipolar or bipolar zero. Therefore, when in
byte mode, the user must take care to set LBE to the desired
status before strobing CLR. (In serial mode the user can simply
hardware LBE to the desired state.)
Note that CS is edge triggered. HBE, LBE, and LDAC are level
triggered.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD660BNZ | 功能描述:IC DAC 16BIT MONO W/VREF 24DIP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口:串行，SPI? 转换器数目:1 电压电源:单电源 功率耗散（最大）:- 工作温度:-40°C ~ 125°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-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD660BNZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Monolithic 16-Bit Serial/Byte DACPORT |
| AD660BR | 功能描述:IC DAC 16BIT MONO W/VREF 24-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散（最大）:941mW 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 W 包装:带卷 (TR) 输出数目和类型:8 电压，单极 采样率（每秒）:* |
| AD660BR-REEL | 功能描述:IC DAC 16BIT MONO W/VREF 24-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散（最大）:941mW 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 W 包装:带卷 (TR) 输出数目和类型:8 电压，单极 采样率（每秒）:* |
| AD660BRZ | 功能描述:IC DAC 16BIT MONO W/VREF 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口:串行，SPI? 转换器数目:1 电压电源:单电源 功率耗散（最大）:- 工作温度:-40°C ~ 125°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-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
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