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參數(shù)資料
| 型號： | MCP4922-E/P |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 14/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 12BIT DUAL W/SPI 14DIP |
| 標準包裝： | 30 |
| 設(shè)置時間： | 4.5µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 14-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 14-PDIP |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 2 電壓，單極；2 電壓，雙極 |
| 采樣率（每秒）： | * |
| 產(chǎn)品目錄頁面： | 673 (CN2011-ZH PDF) |
2010 Microchip Technology Inc.
DS22250A-page 5
MCP4902/4912/4922
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
Operating Voltage
VDD
2.7
—
5.5
V
Operating Current
IDD
—
400
—
A
VREF input is unbuffered, all digi-
tal inputs are grounded, all analog
outputs (VOUT) are unloaded.
Code=000h
Hardware Shutdown
Current
ISHDN
—
1.5
—
A
POR circuit is turned-off
Software Shutdown Current ISHDN_SW
—
5
—
A
POR circuit stays turned-on
Power-On Reset threshold
VPOR
—1.85
—
V
DC Accuracy
MCP4902
Resolution
n
8
—
Bits
INL Error
INL
±0.25
LSb
DNL
±0.2
LSb
MCP4912
Resolution
n
10
—
Bits
INL Error
INL
±1
LSb
DNL
±0.2
LSb
MCP4922
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 off-
set error
Gain Error Temperature
Coefficient
G/°C
—
-3
—
ppm/°C
Input Amplifier (VREF Input)
Input Range – Buffered
Mode
VREF
—
0.040 to
VDD – 0.040
—V
Code = 2048,
VREF = 0.2V p-p, f = 100 Hz and
1kHz
Input Range – Unbuffered
Mode
VREF
0—
VDD
V
Input Impedance
RVREF
—
174
—
k
Unbuffered mode
Input Capacitance –
Unbuffered Mode
CVREF
—7
—
pF
Note 1:
Guaranteed monotonic by design over all codes.
2:
This parameter is ensured by design, and not 100% tested.
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