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参数资料
| 型号： | AD7841ASZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT OCTAL VOUT 44-MQFP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 800 |
| 设置时间： | 31µs |
| 位数： | 14 |
| 数据接口： | 并联 |
| 转换器数目： | 8 |
| 电压电源： | 模拟和数字，双 ± |
| 功率耗散（最大）： | 303mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 8 电压，单极；8 电压，双极 |
| 采样率（每秒）： | 32k |
| 配用： | EVAL-AD7841EBZ-ND - BOARD EVAL FOR AD7841 |
AD7841
–5–
PIN FUNCTION DESCRIPTIONS
Pin
No.
Mnemonic
Description
1
DUTGND_AB
Device Sense Ground for DACs A and B. VOUTA and VOUTB are referenced to the voltage
applied to this pin.
2, 44, 43,
VOUTA ..VOUTH
DAC Outputs.
41, 37, 35,
34, 32
3, 4
VREF(–)AB, VREF(+)AB
Reference Inputs for DACs A and B. These reference voltages are referred to GND.
5, 38
VDD
Positive Analog Power Supply; +15 V
± 10% for specified performance.
6VSS
Negative Analog Power Supply; –15 V
± 10% for specified performance.
7
LDAC
Load DAC Logic Input (active low). When this logic input is taken low the contents of the
registers are transferred to their respective DAC registers.
LDAC can be tied permanently
low enabling the outputs to be updated on the rising edge of
WR.
8, 9, 10
A2, A1, A0
Address inputs. A0, A1 and A2 are decoded to select one of the eight input registers for a
data transfer.
11
CS
Level-Triggered Chip Select Input (active low). The device is selected when this input is low.
12
WR
Level-Triggered Write Input (active low), used in conjunction with
CS to write data to the
AD7841 data registers. Data is latched into the selected input register on the rising edge
of
WR.
13
VCC
Logic Power Supply; 5 V
± 5%.
14
GND
Ground.
15–28
DB0 . . DB12
Parallel Data Inputs. The AD7841 can accept a straight 14-bit parallel word on DB0 to
DB13 where DB13 is the MSB and DB0 is the LSB.
29
CLR
Asynchronous Clear Input (level sensitive, active low). When this input is low, all analog
outputs are switched to the externally set potential on the relevant DUTGND pin. The con-
tents of input registers and DAC registers A to H are not affected when the
CLR pin is taken
low. When
CLR is brought back high, the DAC outputs revert to their original outputs as
determined by the data in their DAC registers.
30, 31
VREF(+)GH, VREF(–)GH
Reference Inputs for DACs G and H. These reference voltages are referred to GND.
33
DUTGND_GH
Device Sense Ground for DACs G and H. VOUTG and VOUTH are referenced to the voltage
applied to this pin.
36
DUTGND_EF
Device Sense Ground for DACs E and F. VOUTE and VOUTF are referenced to the voltage
applied to this pin.
39
VREF(+)CDEF
Reference Inputs for DACs C, D, E and F. These reference voltages are referred to GND.
40
VREF(–)CDEF
Reference Inputs for DACs C, D, E and F. These reference voltages are referred to GND.
42
DUTGND_CD
Device Sense Ground for DACs C and D. VOUTC and VOUTD are referenced to the voltage
applied to this pin.
REV. B
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相关代理商/技术参数 |
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| AD7841BS | 制造商:Analog Devices 功能描述:DAC 8-CH R-2R 14-bit 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:OCTAL 14 BIT HIGH VOLTAGE IC - Bulk 制造商:Analog Devices 功能描述:Digital-Analog Converter IC Interface Ty |
| AD7841BS-REEL | 制造商:Analog Devices 功能描述:DAC 8-CH R-2R 14-bit 44-Pin MQFP T/R 制造商:Analog Devices 功能描述:DAC 8CH R-2R 14BIT 44MQFP - Tape and Reel |
| AD7841BSZ | 功能描述:IC DAC 14BIT OCTAL V-OUT 44-MQFP 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:50 系列:- 设置时间:4µs 位数:12 数据接口:串行 转换器数目:2 电压电源:单电源 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-uMAX 包装:管件 输出数目和类型:2 电压，单极 采样率（每秒）:* 产品目录页面:1398 (CN2011-ZH PDF) |
| AD7841BSZ | 制造商:Analog Devices 功能描述:IC 14-BIT DAC |
| AD7841BSZ-REEL | 功能描述:IC DAC 14BIT OCTAL VOUT 44-MQFP 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）:* |
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