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参数资料
| 型号： | LX1670CD-TR |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, PDSO14 |
| 封装： | LEAD FREE, PLASTIC, SOIC-14 |
| 文件页数： | 3/7页 |
| 文件大小： | 222K |
| 代理商： | LX1670CD-TR |
5-B IT P ROGRAMMABLE V O L TAGE R EFERENCE
LX1670
PRODUCT DA T ABOOK 1996/1997
3
Copyright 1997
Rev. 1.0a
P RODUCTION D AT A S HEET
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for LX1670C with 0°C
≤ T
A ≤ 70°C ;
10.8V < V
CC < 13.2V, D0-D3 = Open, D4 = Open, ENABLE = 1, BLKEN = 1.
Nominal conditions: V
CC = 12.0V, T = 25°C.
Currents flowing into chip are
positive. Current maximums are currents with the highest possible value.)
Power Supply Current and Power Section
Parameter
Symbol
Test Conditions
Positive 12V Supply Current
I
CC
All outputs, inputs unloaded
Units
5mA
Digital-to-Analog Converter Section
Voltage Set Point Accuracy
VSPA
D0-D3 = X, D4 = Open, 2.00
≤ VIDO ≤ 3.50V
D0-D3 = X, D4 = GND, 1.80
≤ VIDO ≤ 2.05V
LSB
VSTP
D4 = Open
D4 = GND
Coding
Binary, D0 = LSB, D3 = MSB
Percent of VIDO Threshold
OVPTH
OVP Sourcing Current
IOVP
OVP = 3.0V
OVP Output Low
VLOVP
IOVP = 100A
Under-Voltage Lockout Section
Under/Over-Voltage Comparator Section
Percent of VIDO Threshold
UOVTH
P
GOOD Low Voltage
VLG
I
GOOD = 5mA
Over-Voltage Protection Comparator Section
Power-up Reset
V
RES
I
GOOD = 5mA
Threshold
UVLOT
V
CC = 5V, Supply ramping down
Hysteresis
UVLOH
V
CC = 5V, Supply ramping up
LX1670
Min.
Typ.
Max.
(Includes DAC, I-V Converter and output scaling amplifier. R
LOAD > 1k, CLOAD < 100pF)
-1.0
1.0
%
-1.5
1.5
%
100
mV
50
mV
1.0
V
4.27
4.37
4.47
V
50
mV
±5.5
±7
±8.5
%
0.2
0.4
V
10
15
20
%
-20
mA
100
mV
Input Low Voltage
V
IL
Input High Voltage
V
IH
Input Low Current
I
IL
V
IL = 0.8V
Input High Current
I
IH
V
IH = 2.0V
TTL Inputs Section
0.8
V
2.0
V
-10
A
0A
Open Drain Inputs Section
-37.5
A
2.0
V
Input Low Current
I
IL
Pin Ground
Input High Voltage
V
IH
Pin Open
(D0-D3, D4)
O
B
SO
LETE
PRO
D
UCT
NOT
RECOMMENDED
FOR
NEW
DESIGNS
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