ADS1015-Q1

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SBAS511 – JULY 2010

ELECTRICAL CHARACTERISTICS

All specifications at –40°C to +125°C, VDD = 3.3V, and Full-Scale (FS) = ±2.048V, unless otherwise noted.

Typical values are at +25°C.

ADS1015

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ANALOG INPUT

±4.096/PGA

V

Analog input voltage

GND

VDD

V

Differential input impedance

See Table 2

10

M

Ω

6

M

Ω

Common-mode input impedance

FS = ±1.024V

3

M

Ω

FS = ±0.512V, ±0.256V

100

M

Ω

SYSTEM PERFORMANCE

Resolution

No missing codes

12

Bits

128, 250,

490, 920,

Data rate (DR)

SPS

1600, 2400,

3300

Data rate variation

All data rates

–10

10

%

Output noise

See Typical Characteristics

Integral nonlinearity

0.5

LSB

FS = ±2.048V, differential inputs

0

±0.5

LSB

Offset error

FS = ±2.048V, single-ended inputs

±0.25

LSB

Offset drift

FS = ±2.048V

0.005

LSB/°C

FS = ±2.048V at 25°C

0.05

0.25

%

FS = ±0.256V

7

ppm/°C

FS = ±2.048V

5

ppm/°C

5

ppm/°C

Match between any two PGA gains

0.02

0.1

%

Gain match

Match between any two inputs

0.05

0.1

%

Offset match

Match between any two inputs

0.25

LSB

DIGITAL INPUT/OUTPUT

Logic level

0.7VDD

5.5

V

GND – 0.5

0.3VDD

V

GND

0.15

0.4

V

Input leakage

10

mA

10

mA

(1)

This parameter expresses the full-scale range of the ADC scaling. In no event should more than VDD + 0.3V be applied to this device.

(2)

99% of full-scale.

(3)

Includes all errors from onboard PGA and reference.

(4)

Not production tested

Copyright © 2010, Texas Instruments Incorporated

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