参数资料
| 型号： | AD7226KN |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT LC2MOS QUAD 20-DIP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 18 |
| 设置时间： | 4µs |
| 位数： | 8 |
| 数据接口： | 并联 |
| 转换器数目： | 4 |
| 电压电源： | 双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 20-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 20-PDIP |
| 包装： | 管件 |
| 输出数目和类型： | 4 电压，单极；4 电压，双极 |
| 采样率（每秒）： | 143k |
REV.
AD7226
–3–
SINGLE SUPPLY
Parameter
K, B Versions
2
Unit
Conditions/Comments
STATIC PERFORMANCE
Resolution
8
Bits
Total Unadjusted Error
±2LSB max
Differential Nonlinearity
±1LSB max
Guaranteed Monotonic
REFERENCE INPUT
Input Resistance
2
k
W min
Input Capacitance
3
50
pF min
Occurs when each DAC is loaded with all 0s.
200
pF max
Occurs when each DAC is loaded with all 1s.
DIGITAL INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.8
V max
Input Leakage Current
±1
mA max
VIN = 0 V or VDD
Input Capacitance
8
pF max
Input Coding
Binary
DYNAMIC PERFORMANCE
Voltage Output Slew Rate
4
2V/
ms min
Voltage Output Settling Time
4
ms max
Settling Time to
±1/2 LSB
Digital Crosstalk
10
nV secs typ
Minimum Load Resistance
2
k
W min
VOUT = +10 V
POWER SUPPLIES
VDD Range
14.25/15.75
V min/V max
For Specified Performance
IDD
13
mA max
Outputs Unloaded; VIN = VINL or VINH
NOTES
1Maximum possible reference voltage.
2Temperature ranges are as follows:
K Version: –40
∞C to +85∞C
B Version: –40
∞C to +85∞C
3Guaranteed by design. Not production tested.
4Sample Tested at 25
∞C to ensure compliance.
Specifications subject to change without notice.
(VDD = 15 V
5%, VSS = AGND = DGND = O V; VREF = 10 V
1 unless otherwise noted.
All specifications TMIN to TMAX unless otherwise noted.)
ABSOLUTE MAXIMUM RATINGS
1
VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, +17 V
VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, +17 V
VSS to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –7 V, VDD
VSS to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –7 V, VDD
VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, +24 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD
Digital Input Voltage to DGND . . . . . . . –0.3 V, VDD + 0.3 V
VREF to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD
VOUT to AGND
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . VSS, VDD
Power Dissipation (Any Package) to 75
∞C . . . . . . . . . . 500 mW
Derates above 75
∞C by . . . . . . . . . . . . . . . . . . . . . 2.0 mW/∞C
Operating Temperature
Commercial (K Version) . . . . . . . . . . . . . . . –40
∞C to +85∞C
Industrial (B Version) . . . . . . . . . . . . . . . . . –40
∞C to +85∞C
Storage Temperature . . . . . . . . . . . . . . . . . . . –65
∞C to +150∞C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . . 300
∞C
NOTES
1Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only, functional operation of the
device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
2Outputs may be shorted to AGND provided that the power dissipation of the
package is not exceeded. Typically short circuit current to AGND is 50 mA.
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
AD7226 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.
4
o
f
1
4
D
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