参数资料
| 型号： | AD7841BSZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/13页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT OCTAL V-OUT 44-MQFP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 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： | 托盘 |
| 输出数目和类型： | 8 电压，单极；8 电压，双极 |
| 采样率（每秒）： | 32k |
| 产品目录页面： | 785 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7841EBZ-ND - BOARD EVAL FOR AD7841 |
–3–
AD7841
(These characteristics are included for Design Guidance and are not subject
to production testing.)
AC PERFORMANCE CHARACTERISTICS
A & B
Parameter
Versions
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Output Voltage Settling Time
31
s typ
Full-Scale Change to
±1/2 LSB. DAC Latch Contents Alternately
Loaded with All 0s and All 1s
Slew Rate
0.7
V/
s typ
Digital-to-Analog Glitch Impulse
230
nV-s typ
Measured with VREF(+) = +5 V, VREF(–) = –5 V. DAC Latch
Alternately Loaded with 1FFF Hex and 2000 Hex. Not Dependent
on Load Conditions
Channel-to-Channel Isolation
99
dB typ
See Terminology
DAC-to-DAC Crosstalk
40
nV-s typ
See Terminology
Digital Crosstalk
0.2
nV-s typ
Feedthrough to DAC Output Under Test Due to Change in Digital
Input Code to Another Converter
Digital Feedthrough
0.1
nV-s typ
Effect of Input Bus Activity on DAC Output Under Test
Output Noise Spectral Density
@ 1 kHz
200
nV/
√Hz typ
All 1s Loaded to DAC. VREF(+) = VREF(–) = 0 V
Specifications subject to change without notice.
TIMING SPECIFICATIONS1, 2
Parameter
Limit at TMIN, TMAX
Unit
Description
t1
15
ns min
Address to
WR Setup Time
t2
0
ns min
Address to
WR Hold Time
t3
50
ns min
CS Pulsewidth Low
t4
50
ns min
WR Pulsewidth Low
t5
0
ns min
CS to WR Setup Time
t6
0
ns min
WR to CS Hold Time
t7
20
ns min
Data Setup Time
t8
0
ns min
Data Hold Time
t9
31
s typ
Settling Time
t10
300
ns max
CLR Pulse Activation Time
t11
50
ns min
LDAC Pulsewidth Low
NOTES
1All input signals are specified with tr = tf = 5 ns (10% to 90% of 5 V) and timed from a voltage level of 1.6 V.
2Rise and fall times should be no longer than 50 ns.
Specifications subject to change without notice.
t1
t2
t5
t6
t3
t4
t7
t8
t9
t10
t11
LDAC
CLR
WR
CS
A0, A1, A2
DATA
VOUT
Figure 1. Timing Diagram
(VCC = 5 V
5%; VDD = 15 V
10%; VSS = –15 V
10%; GND = DUTGND = 0 V)
REV. B
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相关代理商/技术参数 |
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| 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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| AD7843ARQ | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER 制造商:Rochester Electronics LLC 功能描述:2.7V 12-BIT TOUCH SCREN DIGITIZER I.C. - Bulk 制造商:Analog Devices 功能描述:IC 12-BIT ADC |
| AD7843ARQ-REEL | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER 制造商:Rochester Electronics LLC 功能描述:2.7V 12-BIT TOUCH SCREN DIGITIZER I.C. - Tape and Reel |
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