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參數(shù)資料
型號(hào)： MCP4812-E/SN
廠商： Microchip Technology
文件頁數(shù)： 16/19頁
文件大?。?/td> 0K
描述： DAC 10BIT DUAL SPI/VREF 8SOIC
標(biāo)準(zhǔn)包裝： 100
設(shè)置時(shí)間： 4.5µs
位數(shù)： 10
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： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)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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