MAX953ESA Maxim Integrated Products, MAX953ESA Datasheet - Page 12

• Manufacturer Part Number: MAX953ESA
• Description: Op Amps Op Amp / Comparator / Reference
• Manufacturer: Maxim Integrated Products

Specifications of MAX953ESA

• Lead Free Status / Rohs Status: No

by the high-input-impedance op amp of a MAX951
(Figure 6). The comparator and resistor voltage divider
set an alarm threshold to indicate a fire.
Design and fabrication of the connection from the inter-
mediate plate of the ionization chamber to the nonin-
verting input of the op amp is critical, since the
impedance of this node must be well above 50MΩ. This
connection must be as short and direct as possible to
prevent charge leakage and 60Hz interference. Where
possible, the grounded outer electrode or chassis of
the ionization chamber should shield this connection to
reduce 60Hz interference. Pay special attention to
board cleaning, to prevent leakage due to ionic com-
pounds such as chlorides, flux, and other contaminants
from the manufacturing process. Where applicable, a
coating of high-purity wax may be used to insulate this
connection and prevent leakage due to surface mois-
ture or an accumulation of dirt.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2001 Maxim Integrated Products
Ultra-Low-Power, Single-Supply
Op Amp + Comparator + Reference
*Dice are tested at T
**Contact factory for availability and processing to MIL-STD-883.
MAX951C/D
MAX951EPA
MAX951ESA
MAX951EUA
MAX951MJA
MAX952C/D
MAX952EPA
MAX952ESA
MAX952EUA
MAX952MJA
MAX953C/D
MAX953EPA
MAX953ESA
MAX953EUA
MAX953MJA
MAX954C/D
MAX954EPA
MAX954ESA
MAX954EUA
MAX954MJA
PART
A
= +25°C, DC parameters only.
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Ordering Information
Printed USA
PIN-PACKAGE
Dice*
8 Plastic Dip
8 SO
8 µMAX
8 CERDIP**
Dice*
8 Plastic Dip
8 SO
8 µMAX
8 CERDIP**
Dice*
8 Plastic Dip
8 SO
8 µMAX
8 CERDIP**
Dice*
8 Plastic Dip
8 SO
8 µMAX
8 CERDIP**
For the latest package outline information, go to
www.maxim-ic.com/packages.
TRANSISTOR COUNT: 163
SUBSTRATE CONNECTED TO V
__________Typical Operating Circuit
INPUT
( ) ARE FOR MAX953/MAX954
AMPOUT
AMPIN+
AMPIN-
0.1µF
1MΩ
is a registered trademark of Maxim Integrated Products.
V
SS
AMPIN+
3
2
R1
(1.473mm)
R2
0.058"
Package Information
1
Chip Topography
Chip Information
5
6
DD
8
4
REF
MAX951
MAX952
V
V
CC
V
COMPOUT
REF(COMPIN-)
COMPIN+
SS
DD
1.20V
(2.134mm)
0.084"
COMPOUT
7