参数资料
| 型号： | AD7840KPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT LOW PWR 5V 28-PLCC |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 设置时间： | 2.5µs |
| 位数： | 14 |
| 数据接口： | 串行，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： | 管件 |
| 输出数目和类型： | 1 电压，双极 |
| 采样率（每秒）： | 400k |
AD7840
REV. B
–3–
ORDERING GUIDE
Integral
Temperature
SNR
Nonlinearity
Package
Model
1
Range
(dB)
(LSB)
Option
2
AD7840JN
0
°C to +70°C
78 min
±2 max
N-24
AD7840KN
0
°C to +70°C
80 min
±1 max
N-24
AD7840JP
0
°C to +70°C
78 min
±2 max
P-28A
AD7840KP
0
°C to +70°C
80 min
±1 max
P-28A
AD7840AQ
–25
°C to +85°C
78 min
±2 max
Q-24
AD7840ARS
–25
°C to +85°C
78 min
±2 max
RS-24
AD7840BQ
–25
°C to +85°C
80 min
±1 max
Q-24
AD7840SQ
3
–55
°C to +125°C 78 min ±2 max
Q-24
NOTES
1To order MIL-STD-883, Class B processed parts, add /883B to part number.
Contact your local sales office for military data sheet and availability.
2N = Plastic DIP; P = Plastic Leaded Chip Carrier; Q = Cerdip.
3This grade will be available to /883B processing only.
TIMING CHARACTERISTICS1, 2
Limit at TMIN, TMAX
Parameter
(J, K, A, B Versions)
(S Version)
Units
Conditions/Comments
t1
0
ns min
CS
to WR Setup Time
t2
0
ns min
CS
to WR Hold Time
t3
45
50
ns min
WR
Pulse Width
t4
21
28
ns min
Data Valid to WR Setup Time
t5
10
15
ns min
Data Valid to WR Hold Time
t6
40
ns min
LDAC
Pulse Width
t7
50
ns min
SYNC
to SCLK Falling Edge
t8
3
150
200
ns min
SCLK Cycle Time
t9
30
40
ns min
Data Valid to SCLK Setup Time
t10
75
100
ns min
Data Valid to SCLK Hold Time
t11
75
100
ns min
SYNC
to SCLK Hold Time
NOTES
1Timing specifications in bold print are 100% production tested. All other times are sample tested at +25
°C to ensure compliance. All 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.
2See Figures 6 and 8.
3SCLK mark/space ratio is 40/60 to 60/40.
Specifications subject to change without notice.
(VDD = +5 V
5%, VSS = –5 V
5%, AGND = DGND = 0 V.)
ABSOLUTE MAXIMUM RATINGS*
VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
VSS to AGND . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –7 V
AGND to DGND . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V
VOUT to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . VSS to VDD
REF OUT to AGND . . . . . . . . . . . . . . . . . . . . . . . 0 V to VDD
REF IN to AGND . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V
Digital Inputs to DGND . . . . . . . . . . . –0.3 V to VDD + 0.3 V
Operating Temperature Range
Commercial (J, K Versions) . . . . . . . . . . . . . . 0
°C to +70°C
Industrial (A, B Versions) . . . . . . . . . . . . . . –25
°C to +85°C
Extended (S Version) . . . . . . . . . . . . . . . . –55
°C to +125°C
Storage Temperature Range . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +300
°C
Power Dissipation (Any Package) to +75
°C . . . . . . . . 450 mW
Derates above +75
°C by . . . . . . . . . . . . . . . . . . . . 10 mW/°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those listed in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7840 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7840KPZ-RL | 功能描述:14 Bit Digital to Analog Converter 1 28-PLCC (11.51x11.51) 制造商:analog devices inc. 系列:- 包装:带卷（TR） 零件状态:在售 位数:14 数模转换器数:1 建立时间:4μs 输出类型:Voltage - Buffered 差分输出:无 数据接口:并联，串行 参考类型:外部， 内部 电压 - 电源，模拟:±5V 电压 - 电源，数字:- INL/DNL（LSB）:±1（最大），±0.9（最大） 架构:R-2R 工作温度:0°C ~ 70°C 封装/外壳:28-LCC（J 形引线） 供应商器件封装:28-PLCC（11.51x11.51） 标准包装:1 |
| AD7840LN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:14-Bit Digital-to-Analog Converter |
| AD7840LP | 制造商:未知厂家 制造商全称:未知厂家 功能描述:14-Bit Digital-to-Analog Converter |
| AD7840SE/883B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:14-Bit Digital-to-Analog Converter |
| AD7840SQ | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS Complete 14-Bit DAC |
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