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参数资料
| 型号： | MCP4822T-E/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 15/19页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT DUAL W/SPI 8MSOP |
| 标准包装： | 2,500 |
| 设置时间： | 4.5µs |
| 位数： | 12 |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 2 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 2 电压，单极；2 电压，双极 |
| 采样率（每秒）： | * |
2010 Microchip Technology Inc.
DS22249A-page 5
MCP4802/4812/4822
ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE
Electrical Specifications: Unless otherwise indicated, VDD = 5V, VSS = 0V, VREF = 2.048V, Output Buffer Gain (G) = 2x,
RL = 5 k to GND, CL = 100 pF. Typical values are at +125°C by characterization or simulation.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Power Requirements
Input Voltage
VDD
2.7
—
5.5
V
Input Current
Input Curren
IDD
—
440
—
A
All digital inputs are grounded,
all analog outputs (VOUT) are
unloaded. Code = 0x000h.
Software Shutdown Current
ISHDN_SW
—5
—
A
Power-On Reset threshold
VPOR
—1.85
—
V
DC Accuracy
MCP4802
Resolution
n
8
—
Bits
INL Error
INL
—
±0.25
—
LSb
DNL
—
±0.2
—
LSb
MCP4812
Resolution
n
10
—
Bits
INL Error
INL
—
±1
—
LSb
DNL
—
±0.2
—
LSb
MCP4822
Resolution
n
12
—
Bits
INL Error
INL
—
±4
—
LSb
DNL
—
±0.25
—
LSb
Offset Error
VOS
—
±0.02
—
% of FSR
Code = 0x000h
Offset Error Temperature
Coefficient
VOS/°C
—
-5
—
ppm/°C
+25°C to +125°C
Gain Error
gE
—
-0.10
—
% of FSR
Code = 0xFFFh,
not including offset error
Gain Error Temperature
Coefficient
G/°C
—
-3
—
ppm/°C
Internal Voltage Reference (VREF)
Internal Reference Voltage
VREF
—
2.048
—
V
VOUTA when G = 1x and
Code = 0xFFFh
Temperature Coefficient
VREF/°C
—
125
—
ppm/°C
-40°C to 0°C
—
0.25
—
LSb/°C
-40°C to 0°C
—
45
—
ppm/°C
0°C to +85°C
—
0.09
—
LSb/°C
0°C to +85°C
Output Noise (VREF Noise)
ENREF
(0.1 – 10 Hz)
—
290
—
Vp-p
Code = 0xFFFh, G = 1x
Output Noise Density
eNREF
(1 kHz)
—1.2
—
V/Hz
Code = 0xFFFh, G = 1x
eNREF
(10 kHz)
—1.0
—
V/Hz
Code = 0xFFFh, G = 1x
1/f Corner Frequency
fCORNER
—
400
—
Hz
Note 1:
Guaranteed monotonic by design over all codes.
2:
This parameter is ensured by design, and not 100% tested.
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