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參數(shù)資料
| 型號： | DC1074A |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 20/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD DAC LTC2630-12 |
| 軟件下載： | QuikEval System |
| 設計資源： | DC1074A Design File DC1074A Schematic |
| 標準包裝： | 1 |
| 系列： | QuikEval™ |
| DAC 的數(shù)量： | 1 |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | MICROWIRE?，串行，SPI? |
| 設置時間： | 4.4µs |
| DAC 型： | 電壓 |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTC2630-12 |
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LTC2630
7
2630ff
electrical characteristics The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 4.5V to 5.5V, VOUT unloaded unless otherwise specified.
LTC2630-HM12/-HM10/-HM8/-HZ12/-HZ10/-HZ8, LTC2630A-HM12/-HZ12 (VFS = 4.096V)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
AC Performance
tS
Settling Time
VCC = 5V (Note 9)
±0.39% (±1LSB at 8 Bits)
±0.098% (±1LSB at 10 Bits)
±0.024% (±1LSB at 12 Bits)
3.7
4.4
4.8
s
Voltage Output Slew Rate
1.0
V/s
Capacitive Load Driving
500
pF
Glitch Impulse
At Mid-Scale Transition
2.4
nVs
en
Output Voltage Noise Density
At f = 1kHz, Supply as Reference
At f = 10kHz, Supply as Reference
At f = 1kHz, Internal Reference
At f = 10kHz, Internal Reference
140
130
210
200
nV/√Hz
Output Voltage Noise
0.1Hz to 10Hz, Supply as Reference
0.1Hz to 10Hz, Internal Reference
0.1Hz to 200kHz, Supply as Reference
0.1Hz to 200kHz, Internal Reference
20
650
750
VP-P
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: All voltages are with respect to GND.
Note 3: High temperatures degrade operating lifetimes. Operating lifetime
is derated at temperatures greater than 105°C.
Note 4: Linearity and monotonicity are defined from code kL to code 2N–1,
where N is the resolution and kL is given by kL = 0.016 (2N/ VFS), rounded
to the nearest whole code. For VFS = 2.5V and N = 12, kL = 26 and linearity
is defined from code 26 to code 4,095. For VFS = 4.096V and
N = 12, kL = 16 and linearity is defined from code 16 to code 4,095.
Note 5: Inferred from measurement at code 16 (LTC2630-12), code 4
(LTC2630-10) or code 1 (LTC2630-8).
Note 6: This IC includes current limiting that is intended to protect the
device during momentary overload conditions. Junction temperature can
exceed the rated maximum during current limiting. Continuous operation
above the specified maximum operating junction temperature may impair
device reliability.
Note 7: Digital inputs at 0V or VCC.
Note 8: Guaranteed by design and not production tested.
Note 9: Internal Reference mode. DAC is stepped 1/4 scale to 3/4 scale
and 3/4 scale to 1/4 scale. Load is 2k
W in parallel with 100pF to GND.
Note 10: Temperature coefficient is calculated by dividing the maximum
change in output voltage by the specified temperature range.
timing characteristics The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. VCC = 4.5V to 5.5V. (See Figure 1) (Note 8).
LTC2630-HM12/-HM10/-HM8/-HZ12/-HZ10/-HZ8, LTC2630A-HM12/-HZ12 (VFS = 4.096V)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
t1
SDI Valid to SCK Setup
l
4
ns
t2
SDI Valid to SCK Hold
l
4
ns
t3
SCK High Time
l
9
ns
t4
SCK Low Time
l
9
ns
t5
CS/LD Pulse width
l
10
ns
t6
SCK High to CS/LD High
l
7
ns
t7
CS/LD Low to SCK High
l
7
ns
t10
CS/LD High to SCK Positive Edge
l
7
ns
SCK Frequency
50% Duty Cycle
l
50
MHz
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