参数资料
型号: AD5678ARUZ-2
厂商: Analog Devices Inc
文件页数: 14/28页
文件大小: 0K
描述: IC DAC 12/16BIT SPI/SRL 16TSSOP
标准包装: 1
设置时间: 6µs
位数: 12,16
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 8
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: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 管件
输出数目和类型: 8 电压,单极
采样率(每秒): 95k
产品目录页面: 784 (CN2011-ZH PDF)
AD5678
Rev. C | Page 21 of 28
OUTPUT AMPLIFIER
The output buffer amplifier can generate rail-to-rail voltages on
its output, which gives an output range of 0 V to VDD. The
amplifier is capable of driving a load of 2 kΩ in parallel with
1,000 pF to GND. The source and sink capabilities of the output
amplifier can be seen in Figure 24 and Figure 25. The slew rate
is 1.5 V/μs with a to scale settling time of 10 μs.
SERIAL INTERFACE
The AD5678 has a 3-wire serial interface (SYNC, SCLK, and
DIN) that is compatible with SPI, QSPI, and MICROWIRE
interface standards as well as most DSPs. See
for a
timing diagram of a typical write sequence.
The write sequence begins by bringing the SYNC line low. Data
from the DIN line is clocked into the 32-bit shift register on the
falling edge of SCLK. The serial clock frequency can be as high
as 50 MHz, making the AD5678 compatible with high speed
DSPs. On the 32nd falling clock edge, the last data bit is clocked
in and the programmed function is executed, that is, a change
in DAC register contents and/or a change in the mode of
operation. At this stage, the SYNC line can be kept low or be
brought high. In either case, it must be brought high for a
minimum of 15 ns before the next write sequence so that a
falling edge of SYNC can initiate the next write sequence.
Because the SYNC buffer draws more current when VIN = 2 V
than it does when VIN = 0.8 V, SYNC should be idled low
between write sequences for even lower power operation of the
part. As is mentioned previously, however, SYNC must be
brought high again just before the next write sequence.
Table 7. Command Definitions
Command
C3
C2
C1
C0
Description
0
Write to Input Register n
0
1
Update DAC Register n
0
1
0
Write to Input Register n, update all
(software LDAC)
0
1
Write to and update DAC Channel n
0
1
0
Power down/power up DAC
0
1
0
1
Load clear code register
0
1
0
Load LDAC register
0
1
Reset (power-on reset)
1
0
Set up internal REF register
1
0
1
Reserved
Reserved
1
Reserved
Table 8. Address Commands
Address (n)
A3
A2
A1
A0
Selected DAC
Channel
0
DAC A (16 bits)
0
1
DAC B (16 bits)
0
1
0
DAC C (12 bits)
0
1
DAC D (12 bits)
0
1
0
DAC E (12 bits)
0
1
0
1
DAC F (12 bits)
0
1
0
DAC G (16 bits)
0
1
DAC H (16 bits)
1
All DACs
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AD5678ARUZ-2REEL7 功能描述:IC DAC 12/16BIT SPI/SRL 16TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k
AD5678BRUZ-1 功能描述:IC DAC 12/16BIT SPI/SRL 14TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k
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AD5678BRUZ-2REEL7 功能描述:IC DAC 12/16BIT SPI/SRL 16TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k