参数资料
| 型号： | MCP4902T-E/ST |
| 厂商： | Microchip Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | DAC 8BIT DUAL SPI 14TSSOP |
| 标准包装： | 2,500 |
| 设置时间： | 4.5µs |
| 位数： | 8 |
| 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： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 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.
DS22250A-page 3
MCP4902/4912/4922
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
VDD....................................................................... 6.5V
All inputs and outputs w.r.t .....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
Operating Voltage
VDD
2.7
—
5.5
V
Operating CurrentInput Cur-
rent
IDD
—
350
700
A
VDD = 5V
VDD = 3V
VREF input is unbuffered, all digital
inputs are grounded, all analog
outputs (VOUT) are unloaded.
Code = 000h.
—
250
500
A
Hardware Shutdown Current
ISHDN
—
0.3
2
A
Power-on Reset circuit is turned
off
Software Shutdown Current
ISHDN_SW
—
3.3
6
A
Power-on Reset circuit stays on
Power-on-Reset Threshold
VPOR
—2.0
—
V
DC Accuracy
MCP4902
Resolution
n
8
—
Bits
INL Error
INL
-1
±0.125
1
LSb
DNL
-0.5
±0.1
+0.5
LSb
MCP4912
Resolution
n
10
—
Bits
INL Error
INL
-3.5
±0.5
3.5
LSb
DNL
-0.5
±0.1
+0.5
LSb
MCP4922
Resolution
n
12
—
Bits
INL Error
INL
-12
±2
12
LSb
DNL
-0.75
±0.2
+0.75
LSb
Offset Error
VOS
—
±0.02
1
% of
FSR
Code = 0x000h
Note 1:
Guaranteed monotonic by design over all codes.
2:
This parameter is ensured by design, and not 100% tested.
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