参数资料
型号: AD7225CRSZ-RL
厂商: Analog Devices Inc
文件页数: 18/24页
文件大小: 0K
描述: IC DAC 8BIT LC2MOS QUAD 24SSOP
标准包装: 1,500
设置时间: 4µs
位数: 8
转换器数目: 4
电压电源: 双 ±
功率耗散(最大): 500mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.209",5.30mm 宽)
供应商设备封装: 24-SSOP
包装: 带卷 (TR)
输出数目和类型: 4 电压,单极;4 电压,双极
采样率(每秒): *
AD7225
Rev. C | Page 3 of 24
SPECIFICATIONS
VDD = 11.4 V to 16.5 V, VSS = 5 V ± 10%; AGND = DGND = 0 V; VREFx = +2 V to (VDD 4 V)1
Parameter
, unless otherwise noted. All specifications
TMIN to TMAX, unless otherwise noted.
Table 1.
K, B
Versions2
L, C
Versions2
Unit
Conditions/Comments
STATIC PERFORMANCE
Resolution
8
Bits
Total Unadjusted Error
±2
±1
LSB max
VDD = 15 V ± 5%, VREF = 10 V
Relative Accuracy
±1
±1/2
LSB max
Differential Nonlinearity
±1
LSB max
Guaranteed monotonic
Full-Scale Error
±1
±1/2
LSB max
Full-Scale Temperature Coefficient
±5
ppm/°C typ
VDD = 14 V to 16.5 V, VREF = 10 V
Zero Code Error
±30
±20
mV max
Zero Code Error Temperature Coefficient
±30
μV/°C typ
REFERENCE INPUT
Voltage Range
2 to (VDD 4)
V min to V max
Input Resistance
11
kΩ min
Input Capacitance3
50
pF max
Occurs when each DAC is loaded with all 1s
Channel-to-Channel Isolation3
60
dB min
VREF = 10 V p-p sine wave at 10 kHz
AC Feedthrough3
70
dB max
VREF = 10 V p-p sine wave at 10 kHz
DIGITAL INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.8
V max
Input Leakage Current
±1
μA max
VIN = 0 V or VDD
Input Capacitance3
8
pF max
Input Coding
Binary
DYNAMIC PERFORMANCE
Voltage Output Slew Rate3
2.5
V/μs min
Voltage Output Settling Time3
4
μs max
VREF = 10 V; settling time to ± LSB
Digital Feedthrough3
50
nV sec typ
Code transition all 0s to all 1s
Digital Crosstalk3
50
nV sec typ
Code transition all 0s to all 1s
Minimum Load Resistance
2
kΩ min
VOUT = 10 V
POWER SUPPLIES
VDD Range
11.4/16.5
V min to V max
For specified performance
IDD
10
mA max
Outputs unloaded; VIN = VINL or VINH
ISS
9
mA max
Outputs unloaded; VIN = VINL or VINH
SWITCHING CHARACTERISTICS3, 4
t1
50
ns min
Write pulse width
t2
0
ns min
Address to write setup time
t3
0
ns min
Address to write hold time
t4
50
ns min
Data valid to write setup time
t5
0
ns min
Data valid to write hold time
t6
50
ns min
Load DAC pulse width
1
Maximum possible reference voltage.
2
Temperature range is as follows for all versions: 40°C to +85°C.
3
Sample tested at 25°C to ensure compliance.
4
Switching characteristics apply for single-supply and dual-supply operation.
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