参数资料
| 型号： | AD5382BSTZ-3 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/40页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT 32CHAN 3V 100LQFP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 产品变化通告： | Redesign Change 28/Oct/2011 |
| 设计资源： | 32 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using AD5382 (CN0011) AD5382 Channel Monitor Function (CN0012) |
| 标准包装： | 1 |
| 设置时间： | 8µs |
| 位数： | 14 |
| 数据接口： | 串行，并联 |
| 转换器数目： | 32 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 65mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-LQFP |
| 供应商设备封装： | 100-LQFP（14x14） |
| 包装： | 托盘 |
| 输出数目和类型： | 32 电压，单极 |
| 采样率（每秒）： | 125k |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页
Data Sheet
AD5382
Rev. C | Page 23 of 40
Table 15. Control Register Contents
MSB
LSB
CR13
CR12
CR11
CR10
CR9
CR8
CR7
CR6
CR5
CR4
CR3
CR2
CR1
CR0
Control Register Write/Read
REG1 = REG0 = 0, A4–A0 = 01100, R/W status determines
if the operation is a write (R/W = 0) or a read (R/W = 1).
DB13 to DB0 contain the control register data.
Control Register Contents
CR13: Power-Down Status. This bit is used to configure the
output amplifier state in power-down.
CR13 = 1. Amplifier output is high impedance (default on
power-up).
CR13 = 0. Amplifier output is 100 k to ground.
CR12: REF Select. This bit selects the operating internal
reference for the AD5382.
CR12 = 1: Internal reference is 2.5 V (AD5382-5 default), the
recommended operating reference for AD5382-5.
CR12 = 0: Internal reference is 1.25 V (AD5382-3 default),
the recommended operating reference for AD5382-3.
CR11: Current Boost Control. This bit is used to boost the
current in the output amplifier, thereby altering its slew rate.
CR11 = 1: Boost Mode On. This maximizes the bias current
in the output amplifier, optimizing its slew rate but increasing
the power dissipation.
CR11 = 0: Boost Mode Off (default on power-up). This
reduces the bias current in the output amplifier and reduces
the overall power consumption.
CR10: Internal/External Reference. This bit determines
if the DAC uses its internal reference or an externally
applied reference.
CR10 = 1: Internal Reference Enabled. The reference output
depends on data loaded to CR12.
CR10 = 0: External Reference Selected (default on power-up).
CR9: Channel Monitor Enable (see Channel Monitor Function)
CR9 = 1: Monitor Enabled. This enables the channel monitor
function. After a write to the monitor channel in the SFR
register, the selected channel output is routed to the
MON_OUT pin.
CR9 = 0: Monitor Disabled (default on power-up). When the
monitor is disabled, MON_OUT is three-stated.
CR8: Thermal Monitor Function. This function is used to
monitor the AD5382’s internal die temperature when enabled.
The thermal monitor powers down the output amplifiers when
the temperature exceeds 130°C. This function can be used to
protect the device when power dissipation may be exceeded if a
number of output channels are simultaneously short-circuited.
A soft power-up re-enables the output amplifiers if the die
temperature drops below 130°C.
CR8 = 1: Thermal Monitor Enabled.
CR8 = 0: Thermal Monitor Disabled (default on power-up).
CR7 and CR6: Don’t Care.
CR5 to CR2: Toggle Function Enable. This function allows the
user to toggle the output between two codes loaded to the A
and B register for each DAC. Control Register Bits CR5 to CR2
are used to enable individual groups of eight channels for
operation in toggle mode. A Logic 1 written to any bit enables a
group of channels; a Logic 0 disables a group. LDAC is used to
toggle between the two registers. Table 16 shows the decoding
for toggle contains Channels 24 to 31, CR5 = 1 enables these
channels.
Table 16.
CR Bit
Group
Channels
CR5
3
24–31
CR4
2
16–23
CR3
1
8–15
CR2
0
0–7
CR1 and CR0: Don’t Care.
Channel Monitor Function
REG1 = REG0 = 0, A4–A0 = 01010
DB13–DB8 = Contain data to address the monitored channel
A channel monitor function is provided on the AD5382.
This feature, which consists of a multiplexer addressed via the
interface, allows any channel output or the signals connected
to the MON_IN inputs to be routed to the MON_OUT pin for
monitoring using an external ADC. The channel monitor func-
tion must be enabled in the control register before any channels
are routed to MON_OUT. On the AD5382, DB13 to DB8
contain the channel address for the monitored channel.
Selecting channel address 63 three-states MON_OUT.
相关PDF资料 |
PDF描述 |
|---|---|
| AD5390BCPZ-5 | IC DAC 14BIT 16CHAN 5V 64LFCSP |
| AD5398ABCBZ-REEL | IC DAC 10BIT CURRENT-SINK 9WLCSP |
| AD5405YCPZ-REEL7 | IC DAC DUAL 12BIT MULT 40LFCSP |
| AD5415YRU | IC DAC DUAL 12BIT MULT 24-TSSOP |
| AD5421CREZ | IC DAC 16BIT SPI/SRL 28TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5382BSTZ-5 | 功能描述:IC DAC 14BIT 32CH 5V 100-LQFP 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: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）:* |
| AD5383BST | 制造商:Analog Devices 功能描述:- Bulk |
| AD5383BST-3 | 制造商:Rochester Electronics LLC 功能描述:32/40-CHANNEL 3V/5V SINGLE SUPPLY 12/14-BIT VOUT DAC - Bulk 制造商:Analog Devices 功能描述: |
| AD5383BST-5 | 制造商:Analog Devices 功能描述:DAC 32-CH Resistor-String 12-bit 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:32-CHN 5V SINGLE SUPPLY 12-BIT VOUT I.C. - Bulk |
| AD5383BST-5-REEL | 制造商:Analog Devices 功能描述:DAC 32-CH Resistor-String 12-bit 100-Pin LQFP T/R |
发布紧急采购，3分钟左右您将得到回复。