ADIS16488

Data Sheet

Rev. B | Page 4 of 36

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

BAROMETER

Pressure Range

300

1100

mbar

Extended

10

1200

mbar

Sensitivity

BAROM_OUT and BAROM_LOW (32-bit)

mbar/LSB

Error with Supply

0.04

%/V

Total Error

4.5

mbar

Relative Error1

−40°C to +85°C

2.5

mbar

Linearity2

Best fit straight line, FS = 1100 mbar

0.1

% of FS

−40°C to +85°C

0.2

% of FS

Linear-g Sensitivity

±1 g, 1 σ

0.005

mbar/g

Noise

0.025

mbar rms

TEMPERATURE SENSOR

Scale Factor

Output = 0x0000 at 25°C (±5°C)

0.00565

°C/LSB

LOGIC INPUTS3

2.0

V

0.8

V

CS Wake-Up Pulse Width

20

µs

10

µA

All Pins Except RST

10

µA

RST Pin

0.33

mA

10

pF

DIGITAL OUTPUTS

2.4

V

0.4

V

FLASH MEMORY

Endurance4

100,000

Cycles

Data Retention5

20

Years

FUNCTIONAL TIMES6

Time until data is available

Power-On Start-up Time

500

ms

Reset Recovery Time

500

ms

Sleep Mode Recovery Time

500

µs

Flash Memory Update Time

375

ms

Flash Memory Test Time

50

ms

Automatic Self-Test Time

Using internal clock, 100 SPS

12

ms

CONVERSION RATE

2.46

kSPS

Initial Clock Accuracy

0.02

%

Temperature Coefficient

40

ppm/°C

Sync Input Clock

0.77

2.4

kHz

POWER SUPPLY, VDD

Operating voltage range

3.0

3.6

V

Power Supply Current8

Normal mode, VDD = 3.3 V, µ ± σ

254

mA

Sleep mode, VDD = 3.3 V

12.2

mA

Power-down mode, VDD = 3.3 V

45

µA

POWER SUPPLY, VDDRTC

Operating voltage range

3.0

3.6

V

Real-Time Clock Supply Current

Normal mode, VDDRTC = 3.3 V

13

µA

1

The relative error assumes that the initial error, at 25°C, is corrected in the end application.

2

Linearity errors assume a full scale (FS) of 1000 mbar.

3

The digital I/O signals are driven by an internal 3.3 V supply, and the inputs are 5 V tolerant.

4

Endurance is qualified as per JEDEC Standard 22, Method A117, and measured at −40°C, +25°C, +85°C, and +125°C.

5

6

These times do not include thermal settling and internal filter response times, which may affect overall accuracy.

7

Device functions at clock rates below 0.7 kHz, but at reduced performance levels.

8

Supply current transients can reach 450 mA for 400 µs during start-up and reset recovery.