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參數(shù)資料
型號: MCP4802-E/SN
廠商: Microchip Technology
文件頁數(shù): 16/19頁
文件大小: 0K
描述: DAC 8BIT DUAL SPI/VREF 8SOIC
標準包裝: 100
設置時間: 4.5µs
位數(shù): 8
數(shù)據(jù)接口: 串行,SPI?
轉換器數(shù)目: 2
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 8-SOICN
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)
MCP4802/4812/4822
DS22249A-page 6
2010 Microchip Technology Inc.
Output Amplifier
Output Swing
VOUT
0.01 to
VDD – 0.04
V
Accuracy is better than 1 LSb
for
VOUT = 10 mV to (VDD
40 mV)
Phase Margin
PM
66
Degree (°) CL= 400 pF, RL =
Slew Rate
SR
0.55
V/s
Short Circuit Current
ISC
—17
mA
Settling Time
tSETTLING
4.5
s
Within 1/2 LSb of final value
from 1/4 to 3/4 full-scale range
Dynamic Performance (Note 2)
DAC-to-DAC Crosstalk
<10
nV-s
Major Code Transition
Glitch
45
nV-s
1 LSb change around major
carry (0111...1111 to
1000...0000)
Digital Feedthrough
<10
nV-s
Analog Crosstalk
<10
nV-s
AC CHARACTERISTICS (SPI TIMING SPECIFICATIONS)
Electrical Specifications: Unless otherwise indicated, VDD= 2.7V – 5.5V, TA= -40 to +125°C.
Typical values are at +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Schmitt Trigger High-Level
Input Voltage
(All digital input pins)
VIH
0.7 VDD
——
V
Schmitt Trigger Low-Level
Input Voltage
(All digital input pins)
VIL
——
0.2 VDD
V
Hysteresis of Schmitt Trigger
Inputs
VHYS
—0.05 VDD
—V
Input Leakage Current
ILEAKAGE
-1
1
ALDAC = CS = SDI = SCK =
VDD or VSS
Digital Pin Capacitance
(All inputs/outputs)
CIN,
COUT
—10
pF
VDD = 5.0V, TA = +25°C,
fCLK = 1 MHz (Note 1)
Clock Frequency
FCLK
——
20
MHz TA = +25°C (Note 1)
Clock High Time
tHI
15
ns
Clock Low Time
tLO
15
ns
CS Fall to First Rising CLK
Edge
tCSSR
40
ns
Applies only when CS falls with
CLK high. (Note 1)
Data Input Setup Time
tSU
15
ns
Data Input Hold Time
tHD
10
ns
SCK Rise to CS Rise Hold
Time
tCHS
15
ns
Note 1:
This parameter is ensured by design and not 100% tested.
ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE (CONTINUED)
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
Note 1:
Guaranteed monotonic by design over all codes.
2:
This parameter is ensured by design, and not 100% tested.
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