AU2903D [NXP]
Low power dual voltage comparator; 低功耗双电压比较器
| 型号： | AU2903D |
| 厂家： | 
NXP |
| 描述： | Low power dual voltage comparator |
| 文件： | 总5页 (文件大小：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Philips Semiconductors Linear Products
Product specification
Low power dual voltage comparator
AU2903
DESCRIPTION
PIN CONFIGURATION
The AU2903 consists of two independent precision voltage
comparators with an offset voltage specification as low as 2.0mV
max. for two comparators which were designed specifically to
operate from a single power supply over a wide range of voltages.
Operation from split power supplies is also possible and the low
power supply current drain is independent of the magnitude of the
power supply voltage. These comparators also have a unique
characteristic in that the input common-mode voltage range includes
ground, even though operated from a single power supply voltage.
D and N Packages
1
2
3
4
8
7
6
5
OUTPUT A
V+
A
B
INVERTING INPUT A
NON–INVERTING INPUT A
GND
OUTPUT B
INVERTING INPUT B
NON–INVERTING INPUT B
TOP VIEW
FEATURES
• Wide single supply voltage range 2.0V to 36V or dual
DC
DC
supplies ±1.0V , to ±18V
DC
DC
EQUIVALENT CIRCUIT
• Very low supply current drain (0.8mA) independent of supply
voltage (2.0mW/comparator at 5.0V
)
DC
+
V
• Low input biasing current 25nA
• Low input offset current ±5nA and offset voltage ±2mV
• Input common-mode voltage range includes ground
• Differential input voltage range equal to the power supply voltage
• Low output 250mV at 4mA saturation voltage
3.5µA
100µA
3.5µA
100µA
Q2
Q3
+
Q1
Q4
INPUT
• Output voltage compatible with TTL, DTL, ECL, MOS and CMOS
logic systems
OUTPUT
Q8
– INPUT
Q7
APPLICATIONS
Q5
Q6
• A/D converters
• Wide range VCO
• MOS clock generator
• High voltage logic gate
• Multivibrators
(1 Comparator Only)
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
-40°C to +125°C
ORDER CODE
AU2903D
AU2903N
DWG #
0174C
0404B
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
-40°C to +125°C
300
August 31, 1994
853-1636 13721
Philips Semiconductors Linear Products
Product specification
Low power dual voltage comparator
AU2903
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
36 or ±18
36
UNIT
V
Supply voltage
V
DC
V
DC
V
DC
CC
Differential input voltage
Input voltage
V
P
-0.3 to +36
IN
Maximum power dissipation,
DMAX
3
T =25°C (still-air)
A
N package
D package
1160
780
mW
mW
1
Output short-circuit to ground
Continuous
50
2
I
IN
Input current (V <-0.3V )
DC
mA
IN
T
A
Operating temperature range
AU2903
-40 to +125
-65 to +150
300
°C
°C
°C
T
Storage temperature range
Lead soldering temperature (10sec max)
STG
T
SOLD
NOTES:
1. Short circuits from the output to V+ can cause excessive heating and eventual destruction. The maximum output current is approximately
20mA independent of the magnitude of V+.
2. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the
input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral
NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V+ voltage
level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states
will re-establish when the input voltage, which was negative, again returns to a value greater than -0.3V
.
DC
3. Derate above 25°C, at the following rates:
N package at 9.3mW/°C
D package at 6.2mW/°C
301
August 31, 1994
Philips Semiconductors Linear Products
Product specification
Low power dual voltage comparator
AU2903
DC AND AC ELECTRICAL CHARACTERISTICS
V+=5V , AU2903; -40°C, T ≤ +125°C, unless otherwise specified.
DC
A
AU2903
Typ
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
Max
Min
T = 25°C
Over temp.
±2.0
±9
±7.0
mV
A
2
V
OS
Input offset voltage
±15
Input common-mode voltage
range
T = 25°C
Over temp.
0
0
V+-1.5
V
A
V
V
CM
3, 6
V+-2.0
1
Differential input voltage
Keep all V s ≥ 0V (or V- if need)
V+
V
IDR
IN
DC
I
or I
with output
IN(+)
IN(-)
in linear range
4
I
I
Input bias current
nA
BIAS
T =25°C
25
200
250
500
A
Over temp.
I
- I
IN(+) IN(-)
Input offset current
T = 25°C
±5
±50
±50
±200
nA
nA
OS
A
Over temp.
V
≥ 1V , V
= 0,
= 0
IN(-)
DC
IN(+)
I
I
Output sink current
V ≤ 1.5V
6.0
16
mA
OL
0
DC
T = 25°C
A
V
≥ 1V , V
DC IN(-)
IN(+)
Output leakage current
OH
V = 5V , T = 25°C
0.1
nA
0
DC
A
V = 30V , over temp.
1.0
µA
0
DC
R = ∞ on both
L
comparators.
I
Supply current
Voltage gain
T = 25°C
0.8
1
1
mA
CC
A
V+ = 30V, over temp.
R ≥ 15kΩ, V+ = 15V
2.5
,
DC
L
A
25
100
V/mV
V
T = 25°C
A
V
IN(-)
≥ 1V , V
= 0,
DC
IN(+)
I
≤ 4mA
SINK
V
OL
Saturation voltage
T = 25°C
400
400
700
mV
A
Over temp.
V
IN
= TTL logic swing,
Large-signal
response time
V
= 1.4V
REF DC
t
t
300
1.3
ns
LSR
V
= 5V , R = 5.1kΩ,
RL DC L
T = 25°C
A
V
= 5V , R = 5.1kΩ
DC L
RL
5
Response time
µs
R
T = 25°C
A
NOTES:
1. Positive excursions of input voltage may exceed the power supply level by 17V. As long as the other voltage remains within the
common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than -0.3V (V
DC
DC
below the magnitude of the negative power supply, if used).
2. At output switch point, V ≈ 1.4V , R = 0Ω with V+ from 5V to 30V and over the full input common-mode range (0V to
O
DC
S
DC
DC
DC
V+-1.5V ).
DC
3. The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is V+-1.5V, but either or both inputs can go to 30V without damage.
DC
4. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of
the output so no loading change exists on the reference or input lines.
5. The response time specified is for a 100mV input step with a 5mV overdrive.
6. For input signals that exceed V , only the over-driven comparator is affected. With a 5V supply, V should be limited to 25V maximum,
CC
IN
and a limiting resistor should be used on all inputs that might exceed the positive supply.
302
August 31, 1994
Philips Semiconductors Linear Products
Product specification
Low power dual voltage comparator
AU2903
TYPICAL APPLICATIONS
+
V
+
V
700kΩ
100kΩ
30kΩ
500pF
–
+ VC
3.0kΩ
5.1kΩ
FREQUENCY
CONTROL
+
VOLTAGE
–
10
OUTPUT 1
.01µF
0.1µF
+
–
INPUT
V
/2
20kΩ
OUTPUT 2
20kΩ
50kΩ
+
+
–
V
/2
NOTES:
V+ = 30V
DC
DC
Two–Decade High–Frequency VCO
+
V (12V )
DC
+ 250m V
< V = 50V
DC
C
700H < f = 100kHz
O
2R
R
S
10KΩ
+
V
HI
REF
+
LAMP
–
S
+
V
IN
+
2N2222
+
2R
5V
S
DC
360
–
+V
LOW
REF
Limit Comparator
+
–
+
V
REF 4
100
5V
DC
100k
+
5V
DC
360
o
V
+
–
O
-12V
+
–
+V
10KΩ
REF
1.4V
+
V
REF 3
100
DC
–12V
DC
100k
100k
+
V
5V
O
DC
TTL–to–MOS Logic Converter
360
+
V
+
–
+
V
REF 2
2.0kΩ
200kΩ
100kΩ
100
+
+
5V
V
DC
+
–
360
0.1µF
0
V
O
+
–
+
V
REF 1
100
CRYSTAL
1 – 100kHz
200kΩ
100k
Visible Voltage Indicator
Crystal–Controlled Oscillator
NOTE:
Input of unused comparators should be grounded.
303
August 31, 1994
Philips Semiconductors Linear Products
Product specification
Low power dual voltage comparator
AU2903
TYPICAL PERFORMANCE CHARACTERISTICS
Input Current
Output Saturation Voltage
10
1.0
0.1
80
OUT OF
SATURATION
V
= 0 V
DC
= 10kΩ
IN (CM)
IN (CM)
R
60
o
T
= -55 C
A
o
o
= 0 C
T
= +125 C
T
A
A
40
20
o
T
= -55 C
A
0.01
o
= +125 C
o
T
T
= +25 C
A
A
o
= +25
o
T
T
= +70 C
A
A
0.001
0.01
0.1
1.0
10
100
0
10
20
30
40
v + — SUPPLY VOLTAGE — V
DC
I
— OUTPUT SINK CURRENT (mA)
O
Response Time for Various
Input Overdrives —
Response Time for Various
Input Overdrives —
Negative Transition
Positive Transition
6
5
6
5
INPUT OVERDRIVE = 100mV
5mV = INPUT OVERDRIVE
+
5V
4
3
4
3
20mV
5mV
5.1K
OUT
–
+
V
2
1
0
IN
2
1
0
20mV
+
V
5V
100mV
5.1K
OUT
0
0
–
+
V
IN
o
= 25 C
OVERDRIVE
–50
–50
T
V
A
–100
–100
o
T
= 25 C
A
OVERDRIVE
1.0 1.5
TIME — µ sec
0
0.5
2.0
0
0.5
1.0
1.5
2.0
TIME — µ sec
304
August 31, 1994
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