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| 型号： | LT6703IDC-3#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC COMPARATOR 400MV REF 3-DFN |
| 标准包装： | 2,500 |
| 系列： | Over-The-Top® |
| 类型： | 通用 |
| 元件数： | 1 |
| 输出类型： | 开路集电极 |
| 电压 - 电源，单路/双路(±)： | 1.4 V ~ 18 V |
| 电流 - 输入偏压（最小值）： | 0.01µA @ 18V |
| 电流 - 静态（最大值）： | 15µA |
| 传输延迟（最大）： | 29µs |
| 磁滞： | 11.5mV |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 3-WFDFN 裸露焊盘 |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (TR) |
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
10
670323fd
The LT6703-2/LT6703-3/LT6703HV-2/LT6703HV-3 devices
are micropower comparators with a built-in 400mV refer-
ence. Features include wide supply voltage range (1.4V to
18V), Over-The-Top input and output range, 2% accurate
rising input threshold voltage and 6.5mV typical built-in
hysteresis.
TYPICAL PERFORMANCE CHARACTERISTICS
Internal Reference
Each comparator has one input available externally. The two
versions of the part differ by the polarity of the available
input (i.e., inverting or noninverting). The other comparator
input is connected internally to the 400mV reference. The
rising input threshold voltage of the comparator is designed
to be equal to that of the reference (i.e., ≈400mV). The
reference voltage is established with respect to the device
GND connection.
Hysteresis
Each comparator has built-in 6.5mV (typical) of hysteresis
to simplify designs, to insure stable operation in the pres-
ence of noise at the inputs, and to reject supply rail noise
that might be induced by state change load transients. The
hysteresis is designed such that the falling input threshold
voltage is nominally 393.5mV. External positive feedback
circuitry can be employed to increase effective hysteresis
if desired, but such circuitry will provide an apparent effect
on both the rising and falling input thresholds (the actual
internal thresholds remain unaffected).
Figure 1. Additional Hysteresis Circuit
APPLICATIONS INFORMATION
Propagation Delay
vs Input Overdrive
Rise and Fall Times
vs Output Pull-Up Resistor
Noninverting and Inverting
Comparator Propagation Delay
INPUT OVERDRIVE (mV)
0
PROPAGATION
DELAY
(μs)
30
40
50
60
80
670323 G25
20
10
0
20
40
60
100
LH NONINV
HL NONINV
LH INV
HL INV
TA = 25°C
OUTPUT PULL-UP RESISTOR (kΩ)
0.1
0.01
RISE
AND
FALL
TIME
(μs)
1
100
1
10
100
1000
670323 G26
0.1
10
VS = 5V
CL = 20pF
TA = 25°C
RISE
FALL
670323 G27
VS = 5V
TA = 25°C
RLOAD = 10k CONNECTED TO VS
VIN(OVERDRIVE) = 10mV OVER THE INPUT
VOLTAGE THRESHOLDS
VO(NINV)
5V/DIV
DC
VO(INV)
5V/DIV
DC
VIN
10mV/DIV
AC
20μs/DIV
THRESHOLD EQUATIONS:
670323 F01
R4
OUT
+IN
GND
VS
LT6703-3
R3
R2
R1
VIN
VOUT
VIN (L TO H) = (400mV) (R1)
+
1
R1
1
R2
1
R3
VIN (H TO L) = (393mV) (R1)
+
–
1
R1
1
R2
1
R3 + R4
VS R1
R3 + R4
相关PDF资料 |
PDF描述 |
|---|---|
| LT6703IDC-2#TRPBF | IC COMPARATOR 400MV REF 3-DFN |
| VE-B5Z-IV-B1 | CONVERTER MOD DC/DC 2V 60W |
| LT6703HVCS5-3#TRMPBF | IC COMPARATOR 400MV REF TSOT23-5 |
| LT6703HVCS5-2#TRMPBF | IC COMPARATOR 400MV REF TSOT23-5 |
| LT6703HVCS5-2#TRPBF | IC COMPARATOR 400MV REF TSOT23-5 |
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