MAX1452AAE+ Maxim Integrated Products, MAX1452AAE+ Datasheet - Page 10

• Manufacturer Part Number: MAX1452AAE+
• Description: IC SENSOR SIGNAL COND 16-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Signal Conditionerr

Specifications of MAX1452AAE+

• Input Type: Analog
• Output Type: Analog
• Interface: Serial
• Current - Supply: 2.5mA
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Bandwidth: 1.15MHz
• Supply Voltage Min: 4.5V
• Supply Voltage Max: 5.5V
• Digital Ic Case Style: SSOP
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 4.5V To 5.5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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•
Calibration Operation, Registers Updated by Serial
Communications
•
•
•
•
The internal EEPROM is organized as a 768 by 8-bit
memory. It is divided into 12 pages, with 64 bytes per
Low-Cost Precision Sensor
Signal Conditioner
10
Figure 4. Basic 4–20mA Output, Loop-Powered Configuration
Registers CONFIG, OTCDAC, and FSOTCDAC are
refreshed from EEPROM.
Registers ODAC and FSODAC are refreshed from
the temperature indexed EEPROM locations.
The MAX1452 has not had the Secure-Lock byte
set (CL[7:0] = 00hex) or UNLOCK is high.
Power is applied to the device.
The power-on-reset functions have completed.
The registers can then be loaded from the serial
digital interface by use of serial commands. See the
section on Serial Interface Command Format .
______________________________________________________________________________________
SENSOR
5
6
4
BDR
INP
INM
TEST V
8
MAX1452
V
DD
SS
7
3
AMPOUT
Internal EEPROM
FSOTC
AMP+
AMP-
V
ISRC
OUT
DDF
9
16
1
2
13
14
15
R
R
ISRC
STC
100kΩ
499kΩ
4.99MΩ
0.1μF
100kΩ
1.0μF
30Ω
page. Each page can be individually erased. The mem-
ory structure is arranged as shown in Table 1. The look-
up tables for ODAC and FSODAC are also shown, with
the respective temp-index pointer. Note that the ODAC
table occupies a continuous segment, from address
000hex to address 15Fhex, whereas the FSODAC table
is divided in two parts, from 200hex to 2FFhex, and
from 1A0hex to 1FFhex. With the exception of the gen-
eral purpose user bytes, all values are 16-bit wide
words formed by two adjacent byte locations (high byte
and low byte).
The MAX1452 compensates for sensor offset, FSO, and
temperature errors by loading the internal calibration
registers with the compensation values. These compen-
sation values can be loaded to registers directly through
the serial digital interface during calibration or loaded
automatically from EEPROM at power-on. In this way the
device can be tested and configured during calibration
and test and the appropriate compensation values
2.2μF
8
4.99kΩ
OUT
MAX15006B
GND
5
2N4392
G
IN
0.1μF
1
D
S
100Ω
2N2222A
47Ω
Z1
0.1μF
+12V TO +40V
V
V
IN+
IN-