- 3 -

Table 2: AM2321 relative temperature performance table

parameter

condition

min

typ

max

unit

resolution

0.1

℃

16

bit

Accuracy

±0.5

℃

Range

-40

80

℃

Repeatability

±0.2

℃

Interchangeability

Response time

1/e(63%)

<5

S

Drift

±0.1

℃/yr

Figure 3: The maximum error of the temperature sensor

6. Electrical Characteristics

Electrical characteristics, such as high energy consumption, low level, input and output voltage,

etc., depending on the power supply. Table 3 details the AM2321 electrical characteristics, if not

marked, it means that the power supply voltage of 5V. If you want to get the best results with the

sensor, please designed in strict accordance with please and conditions in Table 3 and Figure 27 and

Figure 14 Design.

Table 3: AM2321 DC Characteristics

1. This accuracy is tested at the factory, and the

sensor at 25 ℃

precision index 5V, under the

conditions tested, it does not include hysteresis and

non-linear, and only suitable for non-condensing

environment.

2. At 25℃ and 1m / s air flow conditions, to a first

order effect 63% of the time to be needed.

3. values in the volatile organic compounds may be

higher. See the manual application store information.

4. This value is VDD = 5.0V at a temperature of 25℃,

2S / Times, the average conditions.

5. Low-level output current.

7. show the resistor.

parameter

condition

min

typ

max

unit

Supply Voltage

2.6

5

5.5

v

Power Consumption

4

Dormancy

8

10

µA

Measure

500

µA

Average

200

µA

Low-level output voltage

0

250

MV

High-level output voltage

R p<25 kΩ

90%

100%

VDD

Low-level input voltage

Decline

0

30%

VDD

High-level input voltage

Rise

70%

100%

VDD

R p u

VDD = 5V VIN = VSS

30

45

60

kΩ

Output Current

Open

8

MA

Tri-State (Off)

10

20

µA

Sampling period

2.0

s

CC

I

5

6

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Enterprise QQ: 4006305378

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