MAX6628MTA+T Maxim Integrated Products, MAX6628MTA+T Datasheet - Page 4

• Manufacturer Part Number: MAX6628MTA+T
• Description: IC TEMP SENSOR DGTL 8-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX6628MTA+T

• Function: Temp Monitoring System (Sensor)
• Topology: ADC
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Type: SPI™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Full Temp Accuracy: +/- 0.5 C
• Digital Output - Bus Interface: Serial (3-Wire, SPI)
• Digital Output - Number Of Bits: 12 bit + Sign
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX6628MTA+T; MAX6628MTA+TTR

Remote ±1°C Accurate Digital Temperature
Sensors with SPI-Compatible Serial Interface
4
(V
CC
300
250
200
150
100
50
PIN
12
10
_______________________________________________________________________________________
—
0
8
6
4
2
0
1
2
3
4
5
6
7
8
= +3.3V, T
3.0
10
V
APPLIED TO V
0.1μF CAPACITOR
POWER-SUPPLY NOISE FREQUENCY
IN
AVERAGE OPERATING CURRENT
= SQUARE WAVE
100
3.5
TEMPERATURE ERROR vs.
vs. SUPPLY VOLTAGE
NAME
GND
DXN
SDO
1k
DXP
SCK
N.C.
V
SUPPLY VOLTAGE (V)
A
CS
EP
CC
CC
= +25°C, unless otherwise noted.)
FREQUENCY (Hz)
4.0
WITH NO
10k
V
IN
MAX6628
MAX6627
= 250mVp-p
100k
4.5
Ground
Combined Current Sink and ADC Negative Input for Remote Diode. DXN is normally biased to a diode
voltage above ground.
Combined Current Source and ADC Positive Input for Remote Diode. Place a 2200pF capacitor between
DXP and DXN for noise filtering.
Supply Voltage Input. Bypass with a 0.1µF to GND.
SPI Clock Input
Chip Select Input. Pulling CS low initiates an idle state, but the SPI interface is still enabled. A rising edge
of CS initiates the next conversion.
SPI Data Output
No Connect. Internally not connected. Can be connected to GND for improved thermal conductivity.
Exposed Pad. Internally connected to GND. Connect to a large ground plane to maximize thermal
performance. Not intended as an electrical connection point.
1M
5.0
10M
100M
5.5
125
100
-2
75
50
25
-1
-3
3
2
1
0
0
TEMPERATURE ERROR vs. TEMPERATURE
-55
-2
-30
RESPONSE TO THERMAL SHOCK
0
-5
T
2
A
= 0°C
TEMPERATURE (°C)
20
4
T
A
TIME (s)
= +25°C
45
6
Typical Operating Characteristics
70
8
T
FUNCTION
A
= +70°C
95
10
MAX6627
120 145
12
14
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
5
4
3
2
1
0
-55
0
-30
POWER-ON-RESET THRESHOLD
vs. DXP/DXN CAPACITANCE
5000
TEMPERATURE ERROR
-5
vs. TEMPERATURE
Pin Description
TEMPERATURE (°C)
CAPACITANCE (pF)
20
10,000
45
70
15,000
95 120 145
20,000