RT2901H
RobuST high-temperature low-power quad voltage comparators
Datasheet - production data
SO14
Features
Wide single supply voltage range or dual supplies for all devices: 2 V to 36 V or ±1 V to ±18 V
Very low supply current (1.1 mA) independent of supply voltage
(1.4 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
Low output saturation voltage: 250 mV typ.
(I
O
= 4 mA)
Differential input voltage range equal to the supply voltage
TTL, DTL, ECL, MOS, CMOS compatible outputs
Intended for use in aerospace and defense applications:
Dedicated traceability and part marking
Approval documents available for production parts
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
Temperature range (-40 °C to 150 °C)
Applications
Aerospace and defense
Harsh environments
Description
This device consists of four independent precision voltage comparators. All comparators are 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.
November 2016 DocID026933 Rev 2
This is information on a product in full production.
1/12
www.st.com
Contents RT2901H
Contents
1 Schematic diagram .......................................................................... 3
2 Package pin connections ................................................................ 4
3 Absolute maximum ratings and operating conditions ................. 5
4 Electrical characteristics ................................................................ 6
5 Electrical characteristic curves ...................................................... 7
6 Package information ....................................................................... 8
6.1
SO14 package information ................................................................ 9
7 Ordering information ..................................................................... 10
8 Revision history ............................................................................ 11
2/12 DocID026933 Rev 2
RT2901H
1 Schematic diagram
Figure 1: Schematic diagram (1/4 RT2901H)
VCC+
Schematic diagram
3.5µA 100µA 3.5µA 100µA
Non-Inverting
Input
Inverting
Input
VCCVCC-
VCC-
Vo
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Package pin connections
2 Package pin connections
Figure 2: Pin connections (top view)
RT2901H
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RT2901H
3
Absolute maximum ratings and operating conditions
Absolute maximum ratings and operating conditions
Symbol
Table 1: Absolute maximum ratings
Parameter Value Unit
V
CC
V id
Supply voltage
Differential input voltage
V in
Input voltage
Output short-circuit duration (1)
R thja
Thermal resistance junction-to-ambient (2)
R thjc
Thermal resistance junction-to-case (2)
T j
ESD
Maximum junction temperature
HBM: human body model (3)
MM: machine model (4)
CDM: charged device model (5)
T stg
Storage temperature
±18 or 36
±36
-0.3 to 36
20
105
31
160
500
100
1500
-65 to 150
V mA
°C/W
°C
V
°C
Notes:
(1)
Short-circuits from the output to V
CC
+
can cause excessive heating and eventual destruction. The maximum output current is approximately 20 mA, independent of the magnitude of V
CC
+
.
(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, 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.
Symbol
Table 2: Operating conditions
Parameter
V
CC
+ Supply voltage
T oper
Operating free air temperature range
V icm
Input common mode voltage range
(V
CC
= 30 V) (1)
T amb
= 25 °C
T min
≤ T amb
≤ T max
Value
2 to 36
-40 to 150
0 to (V
CC
+ ) - 1.5
0 to (V
CC
+ ) - 2
Unit
V
°C
V
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 (V
CC
+
) - 1.5 V, but either or both inputs can go to
30 V without damage.
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Electrical characteristics RT2901H
4
Symbol
V io
I io
I ib
A vd
I
CC
V
ID
V
OL
I
OH
I sink t re t rel
Electrical characteristics
Table 3: VCC+ = 5 V, VCC- = ground, Tamb = 25 °C (unless otherwise specified)
Parameter Test conditions Min. Typ. Max. Unit
Input offset voltage (1)
Input offset current
T min
≤ T amb
≤ T max
T min
≤ T amb
≤ T max
Input bias current
(I
I
+ or I
I
-
) (2)
T min
≤ T amb
≤ T max
Large signal voltage gain, V
CC
= 15 V, R = 15 kΩ, V o
= 1 to 11 V
Supply current
(all comparators)
V
CC
= 5 V, no load
V
CC
= 30 V, no load
Differential input voltage (3)
Low level output voltage
Large signal response time,
TTL input, V ref
= 1.4 V,
R
L
= 5.1 kΩ to V
CC
+ (5)
V id
= -1 V, I sink
= 4 mA
T min
≤ T amb
≤ T max
High level output current
V
CC
= V o
= 30 V, V id
= 1 V
T min
≤ T amb
≤ T max
V id
= -1 V, V o
= 1.5 V
Output sink current
T min
≤ T amb
≤ T max
Small signal response time, R
L
= 5.1 kΩ connected to V
CC
+ (4)
Output signal at 50 % of final value
Output signal at 95 % of final value
6
2
25
1
5
25
200
1.1
1.3
250
0.1
16
1.3
2
2.5
V
CC
+
400
700
7
15
50
150
250
400
1
500
1 mV nA
V/mV mA
V mV nA
µA mA
µs ns
µs
Notes:
(1)
At output switch point, V
O
≈ 1.4 V, R
S
= 0 with V
CC
+
from 5 V to 30 V, and over the full input common-mode range (0 V to (V
CC
+
)
– 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 on the reference of input lines.
(3)
The response time specified is for a 100 mV input step with 5 mV overdrive.
(4)
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 will provide 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).
(5)
Maximum values are guaranteed by design
6/12 DocID026933 Rev 2
RT2901H Electrical characteristic curves
5 Electrical characteristic curves
Figure 3: Supply current vs. supply voltage Figure 4: Input current vs. supply voltage
1.0
50
0.8
T
AMB
= - 40 °C
T
AMB
= + 25 °C
40
0.6
30
T
AMB
= - 40 °C
0.4
T
AMB
= + 12 5 °C 20
T
AMB
= + 25 °C
T
AMB
= + 150 °C
0.2
T
AMB
= + 150 °C
0.0
0 10 20
SUPPLY VOLTAGE (V)
30 40
Figure 5: Output saturation voltage vs. output current
(VCC = 5 V)
Vol = f(Isink) - VCC = 5 V -Vid = -1 V - Vicm = Vcc/2
10
10
0
0
T
AMB
= + 125 °C
10 20
SUPPLY VOLTAGE (V)
30 40
Figure 6: Output saturation voltage vs. output current
(VCC = 30 V)
Vol = f(Isink) - VCC = 30 V -Vid = -1 V - Vicm = Vcc/2
10
1 1
150°C 150°C
0.1
0.1
-40°C -40°C
0.01
1E-3
1E-5
Curves done for :
-40°C, 0°C, 25°C, 70°C, 125°C, 150°C
1E-4 1E-3
Output sink current (A)
0.01
0.1
Figure 7: Response time for various input overdrives - positive transition
0.01
1E-3
1E-5
Curves do ne for :
-40°C, 0°C, 25°C, 70°C, 125°C, 150°C
1E-4 1E-3
Output sink current (A)
0.01
0.1
Figure 8: Response time for various input overdrives - negative transition
DocID026933 Rev 2 7/12
Package information
6 Package information
RT2901H
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.
8/12 DocID026933 Rev 2
RT2901H
6.1 SO14 package information
Figure 9: SO14 package mechanical drawing
Package information
Ref e3
F
G
L c1
D
E e
M
S
A a1 a2 b b1
C
Min.
0.1
0.35
0.19
8.55
5.8
3.8
4.6
0.5
Table 4: SO14 package mechanical data
Dimensions
Millimeters
Typ. Min. Max.
1.75
0.2
1.65
0.46
0.25
0.003
0.013
0.007
0.5
8.75
45° (typ.)
0.336
6.2 0.228
1.27
7.62
4.0
5.3
1.27
0.149
0.181
0.019
0.68
8° (max.)
Inches
Typ.
0.019
0.050
0.300
Max.
0.068
0.007
0.064
0.018
0.010
0.344
0.244
0.157
0.208
0.050
0.026
DocID026933 Rev 2 9/12
Ordering information
7 Ordering information
Table 5: Order codes
Order code
Temperature range
Package
RT2901HYDT -40 °C to 150 °C SO14
Packaging
Tape and reel
RT2901H
Marking
R2901HY
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RT2901H
8
Revision history
Revision history
Date Revision
Table 6: Document revision history
Changes
08-Oct-2014
07-Nov-2016
1
2
Initial release
Updated datasheet layout: silhouette, pinout, absolute maximum ratings, and electrical characteristic curves.
Table 2: "Operating conditions" : updated the supply voltage from
"2.5 to 6 V" to "2 to 36 V.
DocID026933 Rev 2 11/12
RT2901H
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12/12 DocID026933 Rev 2
