參數(shù)資料
型號(hào): LTC1257IN8#PBF
廠商: Linear Technology
文件頁數(shù): 7/12頁
文件大?。?/td> 0K
描述: IC D/A CONV 12BIT VOLT OUT 8-DIP
標(biāo)準(zhǔn)包裝: 50
設(shè)置時(shí)間: 6µs
位數(shù): 12
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
功率耗散(最大): 1.75mW
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 8-PDIP
包裝: 管件
輸出數(shù)目和類型: 1 電壓,單極
采樣率(每秒): *
產(chǎn)品目錄頁面: 1350 (CN2011-ZH PDF)
LTC1257
4
1257fc
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current
vs Logic Input Voltage
Output Swing vs Load Resistance
Pull-Down Voltage
vs Output Sink Current Capability
Minimum Supply Voltage
vs Load Current #1
Minimum Supply Voltage
vs Load Current #2
Supply Current vs Temperature
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = TMIN to TMAX. VCC = 4.75V to 15.75V, internal or external reference
(2.475V ≤ VREF ≤ VCC – 2.7V), unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
t5
LOAD Pulse Width
l
150
ns
t6
LSB CLK to LOAD
l
0
ns
t7
LOAD High to CLK
l
0
ns
t8
DOUT Output Delay
CLOAD = 15pF
l
35
150
ns
fCLK
Maximum Clock Frequency
1.4
MHz
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Guaranteed by design; not subject to test.
Note 3: DAC switched from all 1s to all 0s, and all 0s to all 1s code.
Note 4: Guaranteed with internal VREF or with external VREF range of
2.475V to 12V. Tested at 10V.
OUTPUT LOAD CURRENT (mA)
0.01
MINIMUM
SUPPLY
VOLTAGE
(V)
0.1
1
10
1257 G01
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
VREF = INTERNAL
VOUT = FULL SCALE
TA = 25°C
OUTPUT LOAD CURRENT (mA)
0.01
MINIMUM
SUPPLY
VOLTAGE
(V)
0.1
1
10
1257 G02
15.0
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
VREF = 10V
VOUT = FULL SCALE
TA = 25°C
TEMPERATURE (°C)
–50
0.38
0.37
0.36
0.35
0.34
0.33
0.32
0.31
25
75
1257 G03
–25
0
50
100
125
SUPPLY
CURRENT
(mA)
VCC = 5.25V
VCC = 5V
VCC = 4.75V
LOGIC VOLTAGE (V)
0
SUPPLY
CURRENT
(mA)
0.59
0.54
0.49
0.44
0.39
0.34
4
1257 G04
1
2
3
5
VCC = 5V
TA = 25°C
LOAD RESISTANCE ()
10
OUTPUT
VOLTAGE
SWING
(V)
100
1k
10k
1257 G05
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
FULL SCALE
RL TIED TO GND
ZERO SCALE
RL TIED TO VCC
VCC = 5V
OUTPUT SINK CURRENT (A)
1
OUTPUT
PULL-DOWN
VOLTAGE
(mV)
1000
100
10
1
0.1
10
100
1000
1257 G06
HOT
COLD
ROOM
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