RT2903HYDT [STMICROELECTRONICS]
RobuST low-power dual voltage comparators;
| 型号： | RT2903HYDT |
| 厂家： | 
ST |
| 描述： | RobuST low-power dual voltage comparators |
| 文件： | 总11页 (文件大小：253K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RT2903H
RobuST low-power dual voltage comparators
Datasheet - production data
•
•
•
Differential input voltage range equal to the
supply voltage
TTL, DTL, ECL, MOS, CMOS compatible
outputs
Intended for use in aerospace and defense
applications:
D
SO8
(plastic micropackage)
−
−
Dedicated traceability and part marking
Approval documents available for
production parts
Pin connections (top view)
−
−
−
−
Adapted extended life time and
obsolescence management
Extended product change notification
process
Designed and manufactured to meet
sub ppm quality goals
Advanced mold and frame designs for
superior resilience to harsh
environments (acceleration, EMI,
thermal, humidity)
−
−
−
Extended screening capability on
request
Single fabrication, assembly, and test
site
1 - Output 1
2 - Inverting inpput 1
3 - Non-inverting input 1
-
4 - V
CC
5 - Non-inverting input 2
6 - Inverting input 2
7 - Output 2
Temperature range (-40 °C to 150 °C)
+
8 - V
Applications
CC
•
•
Aerospace and defense
Harsh environments
Features
•
Wide single supply voltage range or dual
supplies: 2 V to 36 V or ±1 V to ±18 V
Very low supply current (0.4 mA)
independent of supply voltage
(1 mW/comparator at 5 V)
Low input bias current: 25 nA typ.
Low input offset current: ±5 nA typ.
Input common-mode voltage range includes
ground
Description
This device consists of two independent low-
power voltage comparators designed specifically
to operate from a single power supply over a
wide range of voltages. Operation from split
power supplies is also possible.
•
•
•
•
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.
•
Low output saturation voltage: 250 mV typ.
(IO = 4 mA)
October 2014
DocID026955 Rev 1
1/11
www.st.com
This is information on a product in full production.
Contents
RT2903H
Contents
1
2
3
4
Absolute maximum ratings and operating conditions .................3
Schematic diagram..........................................................................4
Electrical characteristics ................................................................5
Package information .......................................................................7
4.1
SO8 package information..................................................................8
5
6
Ordering information.......................................................................9
Revision history ............................................................................10
2/11
DocID026955 Rev 1
RT2903H
Absolute maximum ratings and operating
conditions
1
Absolute maximum ratings and operating conditions
Table 1: Absolute maximum ratings
Symbol
VCC
Parameter
Value
±18 or 36
±36
Unit
Supply voltage
Vid
Differential input voltage
V
Vin
Input voltage
-0.3 to 36
20
Output short-circuit duration(1)
Thermal resistance junction-to-ambient(2)
Thermal resistance junction-to-case(2)
Maximum junction temperature
HBM: human body model (3)
MM: machine model(4)
mA
°C/W
°C
Rthja
Rthjc
Tj
125
40
160
800
ESD
200
V
CDM: charged device model (5)
1500
-65 to 150
Tstg
Storage temperature
°C
Notes:
+
(1)Short-circuit from the output to VCC can cause excessive heating and eventual destruction. The maximum
+
output current is approximately 20 mA, independent of the magnitude of VCC
.
(2)Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
(3)Human body model: A 100 pF capacitor is charged to the specified voltage and then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
(4)Machine model: A 200 pF capacitor is charged to the specified voltage, then discharged directly between two
pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
(5)Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
Table 2: Operating conditions
Symbol
Parameter
Value
2 to 6
Unit
V
+
VCC
Supply voltage
Toper
Operating free air temperature range
-40 to 150
0 to (VCC+) - 1.5
0 to (VCC+) - 2
°C
Tamb = 25 °C
Input common mode voltage range
(VCC = 30 V)(1)
Vicm
V
Tmin ≤ Tamb ≤ Tmax
Notes:
(1)The input common-mode voltage of either input signal voltage should not be allowed to go negative by more
than 0.3 V. The upper end of the common-mode voltage range is (VCC+) – 1.5 V, but either or both inputs can go
to 30 V without damage.
DocID026955 Rev 1
3/11
Schematic diagram
RT2903H
2
Schematic diagram
Figure 1: Schematic diagram (1/2 RT2903H)
VCC+
3.5µA
100µA
3.5µA
100µA
Non-Inverting
Input
Vo
VCC-
VCC-
Inverting
Input
VCC-
4/11
DocID026955 Rev 1
RT2903H
Electrical characteristics
3
Electrical characteristics
Table 3: VCC+ = 5 V, VCC- = ground, Tamb = 25 °C (unless otherwise specified)
Symbol
Parameter
Test conditions
Min. Typ. Max.
Unit
1
5
7
Vio
Input offset voltage(1)
mV
Tmin ≤ Tamb ≤ Tmax
15
50
Iio
Input offset current
Input bias current(2)
Tmin ≤ Tamb ≤ Tmax
150
250
400
nA
25
Iib
Tmin ≤ Tamb ≤ Tmax
Avd
ICC
VID
VOL
Large signal voltage gain, VCC+ = 15 V, RL = 15 kΩ, Vo = 1 to 11 V
25
200
0.4
1
V/mV
mA
V
VCC+ = 5 V, no load
VCC+ = 30 V, no load
(all comparators)
1
Supply current
2.5
Differential input voltage(3)
VCC
400
800
+
Vid = -1 V, Isink = 4 mA
Low level output voltage
250
0.1
16
mV
Tmin ≤ Tamb ≤ Tmax
VCC+ = Vo = 30 V, Vid = 1 V
nA
µA
IOH
High level output current
Tmin ≤ Tamb ≤ Tmax
1
Vid = -1 V, Vo = 1.5 V
Output sink current
6
2
Isink
tre
mA
Tmin ≤ Tamb ≤ Tmax
+(4)
Small signal response time, RL = 5.1 kΩ connected to VCC
1.3
µs
ns
Large signal response time, Output signal at 50 % of final value
TTL input, Vref = 1.4 V,
500
1
trel
+(5)
Output signal at 95 % of final value
µs
RL = 5.1 kΩ to VCC
Notes:
(1)At output switch point, VO ≈ 1.4 V, RS = 0 Ω with VCC from 5 V to 30 V, and over the full input common-mode range
+
(0 V to (VCC+) – 1.5 V).
(2)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 there is no load charge on the reference of input lines.
(3)Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the
common-mode range, the comparator provides a proper output state. The low input voltage state must not be less than –0.3 V
(or 0.3 V below the negative power supply, if used)
(4)The response time specified is for a 100 mV input step with 5 mV overdrive.
(5)Maximum values are guaranteed by design and evaluation.
DocID026955 Rev 1
5/11
Electrical characteristics
RT2903H
Figure 3: Input current vs. supply voltage
Figure 2: Supply current vs. supply voltage
50
40
30
20
10
0
1.0
0.8
T AMB = - 40 °C
T AMB = - 40 °C
T AMB = + 25 °C
0.6
T AMB = + 125 °C
0.4
0.2
0.0
T AMB = + 25 °C
T AMB = + 150 °C
T AMB = + 150 °C
T AMB = + 125 °C
0
10
20
SUPPLY VOLTAGE (V)
30
40
0
10
20
30
40
SUPPLY VOLTAGE (V)
Figure 4: Output saturation voltage vs. output current
(VCC = 5 V)
Figure 5: Response time for various input overdrives -
negative transition
10
1
T
= + 150 °C
AMB
T
= + 125 °C
AMB
0.1
T
= + 25 °C
AMB
T
= - 40 °C
AMB
0.01
0.1
1
10
100
OUTPUT SINK CURRENT (mA)
Figure 6: Response time for various input overdrives - positive transition
6/11
DocID026955 Rev 1
RT2903H
Package information
4
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
DocID026955 Rev 1
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Package information
RT2903H
4.1
SO8 package information
Figure 7: SO8 package mechanical drawing
Table 4: SO8 package mechanical data
Dimensions
Ref.
Millimeters
Inches
Typ.
Min.
Typ.
Max.
1.75
0.25
Min.
Max.
0.069
0.010
A
A1
A2
b
0.10
1.25
0.28
0.17
4.80
5.80
3.80
0.004
0.049
0.011
0.007
0.189
0.228
0.150
0.48
0.23
5.00
6.20
4.00
0.019
0.010
0.197
0.244
0.157
c
D
4.90
6.00
3.90
1.27
0.193
0.236
0.154
0.050
E
E1
e
h
0.25
0.40
0.50
1.27
0.010
0.016
0.020
0.050
L
L1
k
1.04
0.040
1°
8°
1°
8°
ccc
0.10
0.004
8/11
DocID026955 Rev 1
RT2903H
Ordering information
5
Ordering information
Table 5: Order codes
Order code
Temperature range
Package
Packaging
Tape and reel
Marking
RT2903HYDT
-40 °C to 150 °C
SO8
R2903HY
DocID026955 Rev 1
9/11
Revision history
RT2903H
6
Revision history
Table 6: Document revision history
Changes
Date
Revision
08-Oct-2014
1
Initial release
10/11
DocID026955 Rev 1
RT2903H
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DocID026955 Rev 1
11/11
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