MAX6695AUB Maxim Integrated Products, MAX6695AUB Datasheet - Page 15

• Manufacturer Part Number: MAX6695AUB
• Description: Board Mount Temperature Sensors
• Manufacturer: Maxim Integrated Products

Specifications of MAX6695AUB

• Full Temp Accuracy: +/- 3 C
• Package / Case: uMAX
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 10 bit + Sign
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 9. Conversion-Rate Control Register (POR = 0110)
Note: Extended resolution applies only for conversion rate control register values of 05h or less.
byte’s POR state is 06h (4Hz). The MAX6695/MAX6696
use only the 3 LSBs of the control register. The 5 MSBs
are don’t care and should be set to zero. The conver-
sion rate tolerance is ±25% at any rate setting.
Valid A/D conversion results for all channels are avail-
able one total conversion time after initiating a conver-
sion, whether conversion is initiated through the
RUN/STOP bit, hardware STBY pin, one-shot com-
mand, or initial power-up.
The MAX6695 has a fixed address of 0011 000. The
MAX6696 device address can be set to any one of nine
different values at power-up by pin strapping ADD0
and ADD1 so that more than one MAX6695/MAX6696
can reside on the same bus without address conflicts
(Table 10).
The address pin states are checked at POR and RESET
only, and the address data stays latched to reduce qui-
escent supply current due to the bias current needed for
high-impedance state detection. The MAX6695/
MAX6696 also respond to the SMBus Alert Response
slave address (see the Alert Response Address section).
To prevent unreliable power-supply conditions from
corrupting the data in memory and causing erratic
behavior, a POR voltage detector monitors V
clears the memory if V
Electrical Characteristics). When power is first applied
and V
operating, although reads and writes at V
below 3.0V are not recommended.
BIT 3
0
0
0
0
1
1
1
1
Dual Remote/Local Temperature Sensors with
CC
rises above 2.0V (typ), the logic blocks begin
BIT 1
0
0
1
1
0
0
1
1
______________________________________________________________________________________
BIT0
0
1
0
1
0
1
0
1
CC
HEX
00h
01h
02h
03h
04h
05h
06h
07h
falls below 1.45V (typ; see
Slave Addresses
RATE (Hz) REMOTE
CHANNEL 2 AND
POR and UVLO
CONVERSION
LOCAL
0.0625
0.125
0.25
0.5
1
2
4
4
CC
CC
levels
and
CONVERSION RATE
(Hz) REMOTE
CHANNEL 1
SMBus Serial Interface
• Interrupt latch is cleared.
• Address select pin is sampled.
• ADC begins autoconverting at a 4Hz rate for
• Command register is set to 00h to facilitate quick
• T
• Hysteresis is set to 10 C.
Table 10. POR Slave Address Decoding
(ADD0 and ADD1)
0.125
0.25
0.5
channel 2/local and 8Hz for channel 1.
internal Receive Byte queries.
and min limits, respectively.
1
2
4
8
8
High-Z
High-Z
High-Z
ADD0
GND
GND
GND
HIGH
V
V
V
CC
CC
CC
and T
REMOTE CHANNEL
LOW
High-Z
High-Z
High-Z
CONVERSION
2 AND LOCAL
ADD1
GND
GND
GND
V
V
V
PERIOD (s)
CC
CC
CC
registers are set to default max
0.25
0.25
0.5
16
8
4
2
1
Power-Up Defaults
REMOTE CHANNEL
ADDRESS
0011 000
0011 001
0011 010
0101 001
0101 010
0101 011
1001 100
1001 101
1001 110
CONVERSION
PERIOD (s)
0.125
0.125
0.25
0.5
1
8
4
2
1
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