TYPICAL PERFORMANCE CHARACTERIS" />
參數(shù)資料
型號: LTC1426IS8#TR
廠商: Linear Technology
文件頁數(shù): 4/8頁
文件大?。?/td> 0K
描述: IC DAC PWM 6BIT DUAL MCPWR 8SOIC
標(biāo)準(zhǔn)包裝: 2,500
位數(shù): 6
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 2
電壓電源: 單電源
功率耗散(最大): 550µW
工作溫度: -40°C ~ 85°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-SOIC
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 2 電壓,單極
采樣率(每秒): *
4
LTC1426
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
TEMPERATURE (
°C)
–40
0
CLOCK
HIGH
TIME
(ns)
100
200
300
400
500
600
–15
10
35
60
1426 G04
85
VCC = 3V
VCC = 5V
TEMPERATURE (
°C)
–40
0
SUPPLY
CURRENT
(
A)
10
20
30
40
50
60
–15
10
35
60
1426 G06
85
PUSHBUTTON
MODE
PULSE
MODE
VCC = 5V
Supply Current vs Temperature
LOGIC INPUT VOLTAGE (V)
0
SUPPLY
CURRENT
(
A)
38.5
36.5
34.5
32.5
30.5
28.5
26.5
24.5
22.5
4
1426 F05
1
2
3
5
PULSE
MODE
PUSHBUTTON
MODE
TA = 25°C
CLK1 AND CLK2
TIED TOGETHER
Supply Current
vs Logic Input Voltage
PIN FUNCTIONS
UU
U
span. Bypass VREF to GND with an external capacitor to
minimize output errors. VREF can be tied to VCC if desired.
VCC (Pin 7): Voltage Supply. This supply must be kept free
from noise and ripple by bypassing directly to the ground
plane.
SHDN (Pin 8): Shutdown. A logic low puts the chip into
shutdown mode with the PWM outputs in high imped-
ance. The digital settings for the DACs are retained in
shutdown.
CLK1 (Pin 1): Channel 1 Clock/Pushbutton Input.
CLK2 (Pin 2): Channel 2 Clock/Pushbutton Input.
GND (Pin 3): Ground. It is recommended that GND be tied
to a ground plane.
PWM1 (Pin 4): Channel 1 PWM Output.
PWM2 (Pin 5): Channel 2 PWM Output.
VREF (Pin 6): Voltage Reference Input. VREF powers the
DAC output buffers and can be used to control the output
CLK1
CLK2
tCKL0
1426 TC01
tCKHI
1426 TC02
CLK1
CLK2
tPW
Pushbutton Mode Timing
Pulse Mode Timing
TI I G DIAGRA S
W
U
Minimum Clock High Time
vs Temperature
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