Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

TC911BCOA Scheda tecnica(PDF) 4 Page - Microchip Technology

Il numero della parte TC911BCOA
Spiegazioni elettronici  Monolithic Auto-Zeroed Operational Amplifiers
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC911BCOA Scheda tecnica(HTML) 4 Page - Microchip Technology

  TC911BCOA Datasheet HTML 1Page - Microchip Technology TC911BCOA Datasheet HTML 2Page - Microchip Technology TC911BCOA Datasheet HTML 3Page - Microchip Technology TC911BCOA Datasheet HTML 4Page - Microchip Technology TC911BCOA Datasheet HTML 5Page - Microchip Technology TC911BCOA Datasheet HTML 6Page - Microchip Technology TC911BCOA Datasheet HTML 7Page - Microchip Technology TC911BCOA Datasheet HTML 8Page - Microchip Technology TC911BCOA Datasheet HTML 9Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 14 page
background image
TC911A/TC911B
DS21481C-page 4
© 2005 Microchip Technology Inc.
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in <Blue
References>Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
3.0
DETAILED DESCRIPTION
3.1
Pin Compatibility
The CMOS TC911 is pin compatible with the industry
standard
ICL7650 chopper stabilized amplifier. The
ICL7650 must use external 0.1
μF capacitors con-
nected at pins 1 and 8. With the TC911, external off-
set voltage error canceling capacitors are not
required. On the TC911 pins 1, 8 and 5 are not con-
nected internally. The ICL7650 uses pin 5 as an
optional output clamp connection. External chopper
capacitors and clamp connections are not necessary
with the TC911. External circuits connected to pins 1, 8
and 5 will have no effect. The TC911 can be quickly
evaluated in existing ICL7650 designs. Since external
capacitors are not required, system part count, assem-
bly time and total system cost are reduced. Reliability
is increased and PC board layout eased by having the
error storage capacitors integrated on the TC911 chip.
The TC911 pinout matches many existing op amps:
741, LM101, LM108, OP05–OP08, OP-20, OP-21,
ICL7650 and ICL7652. In many applications operating
from +5V supplies, the TC911 offers superior electrical
performance and can be a functional pin compatible
replacement. Offset voltage correction potentiometers,
compensation capacitors, and chopper stabilization
capacitors can be removed when retro-fitting existing
equipment designs.
3.2
Thermocouple Errors
Heating one joint of a loop made from two different
metallic wires causes current flow. This is known as the
Seebeck effect. By breaking the loop, an open circuit
voltage (Seebeck voltage) can be measured. Junction
temperature and metal type determine the magnitude.
Typical values are 0.1
μV/°C to 10μV/°C. Thermal
induced voltages can be many times larger than the
TC911 offset voltage drift. Unless unwanted thermo-
couple potentials can be controlled, system perfor-
mance will be less than optimum.
Unwanted thermocouple junctions are created when
leads are soldered or sockets/connectors are used.
Low thermo-electric coefficient solder can reduce
errors. A 60% Sn/36% Pb solder has 1/10 the thermal
voltage of common 64% Sn/36% Pb solder at a copper
junction.
The number and type of dissimilar metallic junctions in
the input circuit loop should be balanced. If the junc-
tions are kept at the same temperature, their summa-
tion will add to zero-canceling errors (Figure 3-1).
Shielding precision analog circuits from air currents -
especially those caused by power dissipating compo-
nents and fans - will minimize temperature gradients
and thermocouple induced errors.
FIGURE 3-1:
UNWANTED THERMOCOUPLE ERRORS ELIMINATED BY REDUCING
THERMAL GRADIENTS AND BALANCING JUNCTIONS
Pin Number
Symbol
Description
1, 5, 8
NC
No Internal Connection.
2
-INPUT
Inverting Input
3
+INPUT
Non-inverting Input
4VSS
Negative Power Supply
6
OUTPUT
Output
7VDD
Positive Power Supply
J3
J4
J2
J1
J6
Package
Pin
J3 = J4
J2 = J5
J1 = J6
No Temperature Differential and same
Metallic Connection
+
+
+–
+–
+–
+–
V2
V1
V5
V6
V4
V3
J4
J3
J2
J1
J5
J5
J6
VT = 0
VT = V1 + V2 + V3 – V4 – V5 – V6 = 0


Codice articolo simile - TC911BCOA

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
TelCom Semiconductor, I...
TC911BCOA TELCOM-TC911BCOA Datasheet
69Kb / 5P
   AUTO-ZEROED OPERATIONAL AMPLIFIERS
logo
Microchip Technology
TC911BCOA MICROCHIP-TC911BCOA Datasheet
60Kb / 7P
   Monolithic Auto-Zeroed Operational Amplifers
2001
More results

Descrizione simile - TC911BCOA

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
TelCom Semiconductor, I...
TC911A TELCOM-TC911A Datasheet
69Kb / 5P
   AUTO-ZEROED OPERATIONAL AMPLIFIERS
logo
Microchip Technology
TC913A MICROCHIP-TC913A_13 Datasheet
205Kb / 14P
   Dual Auto-Zeroed Operational Amplifiers
11/29/12
TC913A MICROCHIP-TC913A_06 Datasheet
259Kb / 12P
   Dual Auto-Zeroed Operational Amplifiers
2006
TC913A MICROCHIP-TC913A Datasheet
429Kb / 12P
   Dual Auto-Zeroed Operational Amplifiers
2002
TC911A MICROCHIP-TC911A Datasheet
60Kb / 7P
   Monolithic Auto-Zeroed Operational Amplifers
2001
TC901 MICROCHIP-TC901 Datasheet
50Kb / 6P
   Dual Auto-Zeroed Operational Amplifiers
2001
logo
TelCom Semiconductor, I...
TC913A TELCOM-TC913A Datasheet
48Kb / 4P
   DUAL AUTO-ZEROED OPERATIONAL AMPLIFIERS
TC901 TELCOM-TC901 Datasheet
55Kb / 4P
   MONOLITHIC, AUTO-ZEROED OPERATIONAL AMPLIFIER
logo
Teledyne Technologies I...
TC915 TELEDYNE-TC915 Datasheet
941Kb / 8P
   HIGH-VOLTAGE, AUTO-ZEROED OPERATIONAL AMPLIFIER
logo
Analog Devices
PM156A AD-PM156A_15 Datasheet
302Kb / 6P
   MONOLITHIC JFET INPUT OPERATIONAL AMPLIFIERS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com