参数资料
| 型号： | MCP4812-E/P |
| 厂商： | Microchip Technology |
| 文件页数： | 12/19页 |
| 文件大小： | 0K |
| 描述： | DAC 10BIT DUAL SPI/VREF 8PDIP |
| 标准包装： | 60 |
| 设置时间： | 4.5µs |
| 位数： | 10 |
| 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： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 输出数目和类型： | 2 电压，单极；2 电压，双极 |
| 采样率（每秒）： | * |
| 产品目录页面： | 673 (CN2011-ZH PDF) |
2010 Microchip Technology Inc.
DS22249A-page 3
MCP4802/4812/4822
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
VDD....................................................................... 6.5V
All inputs and outputs .......... VSS – 0.3V to VDD + 0.3V
Current at Input Pins ......................................... ±2 mA
Current at Supply Pins .................................... ±50 mA
Current at Output Pins .................................... ±25 mA
Storage temperature .......................... -65°C to +150°C
Ambient temp. with power applied ..... -55°C to +125°C
ESD protection on all pins
4 kV (HBM), 400V (MM)
Maximum Junction Temperature (TJ)................+150°C
Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
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, TA = -40 to +85°C. Typical values are at +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Power Requirements
Input Voltage
VDD
2.7
—
5.5
V
Input Current
IDD
—
415
750
A
All digital inputs are grounded,
all analog outputs (VOUT) are
unloaded. Code = 0x000h
Software Shutdown Current
ISHDN_SW
—3.3
6
A
Power-on Reset Threshold
VPOR
—2.0
—
V
DC Accuracy
MCP4802
Resolution
n
8
—
Bits
INL Error
INL
-1
±0.125
1
LSb
DNL
-0.5
±0.1
+0.5
LSb
MCP4812
Resolution
n
10
—
Bits
INL Error
INL
-3.5
±0.5
3.5
LSb
DNL
-0.5
±0.1
+0.5
LSb
MCP4822
Resolution
n
12
—
Bits
INL Error
INL
-12
±2
12
LSb
DNL
-0.75
±0.2
+0.75
LSb
Offset Error
VOS
-1
±0.02
1
% of FSR Code = 0x000h
Offset Error Temperature
Coefficient
VOS/°C
—
0.16
—
ppm/°C
-45°C to +25°C
—
-0.44
—
ppm/°C
+25°C to +85°C
Gain Error
gE
-2
-0.10
2
% of FSR Code = 0xFFFh,
not including offset error
Gain Error Temperature
Coefficient
G/°C
—
-3
—
ppm/°C
Note 1:
Guaranteed monotonic by design over all codes.
2:
This parameter is ensured by design, and not 100% tested.
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