ADT7420 Analog Devices, ADT7420 Datasheet - Page 3

• Manufacturer Part Number: ADT7420
• Description: 16-Bit Digital I2C Temperature Sensor
• Manufacturer: Analog Devices

Preliminary Technical Data
SPECIFICATIONS
T
Table 1.
Parameter
TEMPERATURE SENSOR AND ADC
DC PSRR
DIGITAL OUTPUTS (OPEN DRAIN)
DIGITAL INPUTS
POWER REQUIREMENTS
1
2
3
4
5
Accuracy specification includes repeatability.
The equivalent 3-Σ limits are ±0.15°C. This 3-Σ specification is provided to enable comparison with other vendors who use these limits.
For higher accuracy at 5 V operation, contact Analog Devices.
Based on a floating average of 10 readings.
Drift includes Solder Heat Resistance and life time test performed as per Jedec Standard JESD22-A108.
A
1 SPS Conversion Time
High Output Leakage Current, I
Output High Current
Output Low Voltage, V
Output High Voltage, V
Output Capacitance, C
Input Current
Input Low Voltage, V
Input High Voltage, V
SCL, SDA Glitch Rejection
Pin Capacitance
Supply Voltage
Supply Current
1 SPS Current
Shutdown Current
Power Dissipation Normal Mode
Power Dissipation 1 SPS
Accuracy
ADC Resolution
Temperature Resolution
Temperature Conversion Time
Fast Temperature Conversion Time
Temperature Hysteresis
Repeatability
Drift
= −40°C to +125°C, V
13-Bit
16-Bit
At 3.3 V
At 5.5 V
At 3.3 V
At 5.5 V
At 3.3 V
At 5.5 V
5
1
4
IL
IH
OUT
OL
OH
DD
= 2.7 V to 5.5 V, unless otherwise noted.
OH
Min
0.7 × V
0.7 × V
2.7
DD
DD
Typ
−0.85
−1.0
13
16
0.0625
0.0078
240
6
60
0.02
±0.015
0.0073
0.1
0.1
3
50
5
210
230
46
65
2.0
4.4
700
150
Rev. PrA | Page 3 of
Max
±0.20
±0.25
±0.50
±0.50
±0.75
5
1
0.4
±1
0.4
10
5.5
250
300
15
25
2
3
Unit
°C
°C
°C
°C
°C
°C
°C
Bits
Bits
°C
°C
ms
ms
ms
°C
°C
°C
°C/V
µA
mA
V
V
pF
µA
V
V
ns
pF
V
µA
µA
µA
µA
µA
µA
µW
µW
Test Conditions/Comments
T
T
T
T
T
T
T
Twos complement temperature value of the sign bit
plus 12 ADC bits (power-up default resolution)
Twos complement temperature value of the sign bit
plus 15 ADC bits (Bit 7 = 1 in the configuration register)
13-bit resolution (sign + 12-bit)
16-bit resolution (sign + 15-bit)
Continuous conversion and one-shot conversion modes
First conversion on power-up only
Conversion time for 1 SPS mode
Temperature cycle = 25°C to 125°C and back to 25°C
T
500 hour stress test at +150°C with V
T
CT and INT pins pulled up to 5.5 V
V
I
V
Input filtering suppresses noise spikes of less than 50 ns
Peak current while converting, I
Peak current while converting, I
V
V
Supply current in shutdown mode
Supply current in shutdown mode
V
Power dissipated for V
OL
A
A
A
A
A
A
A
A
A
OH
IN
DD
DD
DD
= −10°C to +85°C, V
= −20°C to +105°C, V
= −40°C to +125°C, V
= −10°C to +105°C, V
= −40°C to +125°C, V
= +125°C to +150°C, V
= +125°C to +150°C, V
= 25°C
= 25°C
= 2 mA @ 5.5 V, I
= 0 V to V
= 5.5 V
= 3.3 V, 1 SPS mode, T
= 5.5 V, 1 SPS mode, T
= 3.3 V, normal mode at 25°C
DD
OL
DD
= 1 mA @ 3.3 V
DD
DD
DD
DD
DD
= 3.3 V, T
DD
DD
= 3.0 V
A
A
= 2.7 V to 3.3 V
= 2.7 V to 3.3 V
= 4.5 V to 5.5 V
= 4.5 V to 5.5 V
= 25°C
= 25°C
= 4.5V to 5.5 V
= 2.7 V to 3.3 V
www.DataSheet4U.com
2
2
C interface inactive
C interface inactive
A
= 25°C
DD
= 5.0V
ADT7420