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PDF RT2901H Data sheet ( Hoja de datos )
| Número de pieza | RT2901H | |
| Descripción | RobuST high-temperature low-power quad voltage comparators | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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RT2901H
RobuST high-temperature low-power quad voltage comparators
Datasheet - production data
D
SO14
(plastic micropackage)
Pin connections (top view)
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.
(IO = 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.
October 2014
DocID026933 Rev 1
This is information on a product in full production.
1/11
www.st.com
1 page  
RT2901H
Electrical characteristics
3
Symbol
Vio
Iio
Iib
Avd
ICC
VID
VOL
IOH
Isink
tre
trel
Electrical characteristics
Table 3: VCC+ = 5 V, VCC- = ground, Tamb = 25 °C (unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max.
Input offset voltage(1)
Tmin ≤ Tamb ≤ Tmax
17
15
Input offset current
Tmin ≤ Tamb ≤ Tmax
5 50
150
Input bias current
(II+ or II-)(2)
Tmin ≤ Tamb ≤ Tmax
25 250
400
Large signal voltage gain, VCC = 15 V, R = 15 kΩ, Vo = 1 to 11 V 25 200
Supply current
(all comparators)
Differential input voltage(3)
VCC = 5 V, no load
VCC = 30 V, no load
1.1 2
1.3 2.5
VCC+
Low level output voltage
Vid = -1 V, Isink = 4 mA
Tmin ≤ Tamb ≤ Tmax
250 400
700
High level output current
VCC = Vo = 30 V, Vid = 1 V
Tmin ≤ Tamb ≤ Tmax
0.1
1
Output sink current
Vid = -1 V, Vo = 1.5 V
Tmin ≤ Tamb ≤ Tmax
Small signal response time, RL = 5.1 kΩ connected to VCC+(4)
6 16
2
1.3
Large signal response time,
TTL input, Vref = 1.4 V,
RL = 5.1 kΩ to VCC+(5)
Output signal at 50 % of final
value
Output signal at 95 % of final
value
500
1
Unit
mV
nA
V/mV
mA
V
mV
nA
µA
mA
µs
ns
µs
Notes:
(1)At output switch point, VO ≈ 1.4 V, RS = 0 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 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
DocID026933 Rev 1
5/11
5 Page 
RT2901H
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and
improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST
products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order
acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the
design of Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2014 STMicroelectronics – All rights reserved
DocID026933 Rev 1
11/11
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