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參數(shù)資料
| 型號(hào)： | AD7225LRZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 8BIT QUAD W/AMP 24SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 設(shè)置時(shí)間： | 4µs |
| 位數(shù)： | 8 |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 雙 ± |
| 功率耗散（最大）： | 500mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-SOIC W |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 4 電壓，單極；4 電壓，雙極 |
| 采樣率（每秒）： | 200k |
AD7225
Rev. C | Page 3 of 24
SPECIFICATIONS
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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