參數(shù)資料
型號： LTC1426
廠商： Linear Technology Corporation
英文描述： 14-bit, 5V, 200KSPS, 4-Channel Unipolar ADC 20-TSSOP -40 to 85
中文描述： 微功率雙路6位PWM DAC的
文件頁數(shù)： 3/8頁
文件大?。?/td> 222K
代理商： LTC1426
3
LTC1426
SYMBOL
V
IL
PARAMETER
CLK Low Level
Input Voltage (Note 5)
CONDITIONS
V
CC
= 4.5V
MIN
TYP
MAX
0.8
0.8
0.45
0.45
±
5
UNITS
SHDN
CLK1, CLK2
SHDN
CLK1, CLK2
G
G
V
V
V
V
V
CC
= 2.7V
G
G
I
OZ
Z
IN
f
CLK
Three-State Output Leakage
CLK Input Resistance
Clock Frequency
SHDN = 0
Pushbutton Mode, CLK1/CLK2
Pulse Mode, V
CC
= 3.3V
Pulse Mode, V
CC
= 2.7V
Pulse Mode, V
CC
= 3.3V
Pulse Mode, V
CC
= 2.7V
Pulse Mode, V
CC
= 3.3V
Pulse Mode, V
CC
= 2.7V
Pushbutton Mode
Pushbutton Mode
Pushbutton Mode
Pushbutton Mode
G
μ
A
M
MHz
kHz
ns
ns
ns
ns
μ
s
ms
ms
Hz
2.5
G
G
1
750
t
CKHI
Clock High Time
G
G
450
600
450
600
670
10.7
340
11.7
t
CKLO
Clock Low Time
G
G
t
PW
t
DEB
t
DELAY
f
REPEAT
Pulse Width
Debounce Time
Repeat Rate Delay
Repeat Frequency
G
G
12.8
410
19.5
21.3
680
23.4
G
G
ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C, (Note 2) unless otherwise specified.
Note 3:
Shutdown current can be negative due to leakage currents if V
CC
>
V
REF
or V
REF
> V
CC
.
Note 4:
Guaranteed by Design. Decouple the V
CC
and V
REF
pins to GND
using high quality, low ESR, low ESL 0.1
μ
F capacitors to eliminate PWM
switching noise that may otherwise get coupled into the CLK1/CLK2 high
impedance input buffers. The decoupling capacitors should be located in
close proximity to these pins and the ground line to have maximum effect.
Note 5:
Input thresholds apply for both pushbutton and pulse modes.
The
G
denotes the specifications which apply over the full operating
temperature range.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground, unless otherwise
specified. All typicals are given for V
CC
= V
REF
= 5V, T
A
= 25
°
C and
PWM1/PWM2 output to GND, C
PWM
= 10pF.
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
CODE
0
–0.05
D
–0.04
–0.02
–0.01
0
0.05
0.02
16
32
40
1426 G01
–0.03
0.03
0.04
0.01
8
24
48
56
64
V
CC
= V
REF
= 5V
T
A
= 25
°
CODE
0
–0.05
E
–0.04
–0.02
–0.01
0
0.05
0.02
16
32
40
1426 G02
–0.03
0.03
0.04
0.01
8
24
48
56
64
V
CC
= V
REF
= 5V
T
A
= 25
°
OUTPUT CURRENT SINK CAPABILITY (mA)
1
O
100
1000
0.1
10
100
1426 G03
0.1
1
10
85
°
C
–40
°
C
V
CC
= 5V
25
°
C
Output Pull-Down Voltage
vs Output Current Sink Capability
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
相關(guān)PDF資料
PDF描述
LTC1426C Micropower Dual 6-Bit PWM DAC
LTC1426CMS8 Micropower Dual 6-Bit PWM DAC
LTC1426CS8 14-Bit 200KSPS ADC Serial Out, Auto PWRDN, Pseudo Differential Input 8-SOIC -40 to 85
LTC1426I Micropower Dual 6-Bit PWM DAC
LTC1426IS8 14-Bit 200KSPS ADC Serial Out, Auto PWRDN, Pseudo Differential Input 8-MSOP -40 to 85
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