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PDF RT2903H Data sheet ( Hoja de datos )
| Número de pieza | RT2903H | |
| Descripción | RobuST low-power dual voltage comparators | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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RT2903H
RobuST low-power dual voltage comparators
Datasheet - production data
D
SO8
(plastic micropackage)
Pin connections (top view)
1 - Output 1
2 - Inverting inpput 1
3 - Non-inverting input 1
4 - VCC-
5 - Non-inverting input 2
6 - Inverting input 2
7 - Output 2
8 - VCC+
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
• 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 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.
October 2014
DocID026955 Rev 1
This is information on a product in full production.
1/11
www.st.com
1 page  
RT2903H
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(2)
Tmin ≤ Tamb ≤ Tmax
25 250
400
Large signal voltage gain, VCC+ = 15 V, RL = 15 kΩ, Vo = 1 to 11 V 25 200
Supply current
VCC+ = 5 V, no load
0.4 1
(all comparators)
VCC+ = 30 V, no load
1 2.5
Differential input voltage(3)
VCC+
Low level output voltage
High level output current
Vid = -1 V, Isink = 4 mA
Tmin ≤ Tamb ≤ Tmax
VCC+ = Vo = 30 V, Vid = 1 V
Tmin ≤ Tamb ≤ Tmax
250 400
800
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 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
5 Page 
RT2903H
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
DocID026955 Rev 1
11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet RT2903H.PDF ] | |
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