Serial 14-Bit ADCs

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

AVDD1 to AGND1 ....................................................-0.3V to +6V

AVDD2 to AGND2 ....................................................-0.3V to +6V

DVDD to DGND ........................................................-0.3V to +6V

DVDDO to DGNDO ..................................................-0.3V to +6V

DVDD to DVDDO......................................................-0.3V to +6V

DVDD, DVDDO to AVDD1 ........................................-0.3V to +6V

AVDD1, DVDD, DVDDO to AVDD2 ..........................-0.3V to +6V

DGND, DGNDO, AGND3, AGND2 to AGND1 ......-0.3V to +0.3V

CS, SCLK, DIN, DOUT, SSTRB to

DGNDO..........................................-0.3V to (VDVDDO + 0.3V)

CH0–CH7 to AGND1 ...................................................-6V to +6V

REF, REFCAP to AGND1 ....................-0.3V to (VAVDD1 + 0.3V)

Continuous Current (any pin) ...........................................±50mA

20-Pin TSSOP (derate 13.6mW/°C above +70°C) .........1084mW

24-Pin TSSOP (derate 13.9mW/°C above +70°C) ......1111.1mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature .....................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY (Notes 1, 2)

Resolution

14

Bits

Integral Nonlinearity

INL

±0.25

±1

LSB

Differential Nonlinearity

DNL

No missing codes

±1

LSB

0.5

Transition Noise

External or internal reference

2

Unipolar

0

±7.5

Single-ended inputs

Bipolar

-1.0

±7.5

Offset Error

Differential inputs

(Note 3)

Bipolar

-2

±10

mV

Channel-to-Channel Gain

Matching

Unipolar or bipolar

0.025

%FSR

Channel-to-Channel Offset Error

Matching

Unipolar or bipolar

1.0

mV

Unipolar

3

Bipolar

1

Offset Temperature Coefficient

Fully differential

2

µV/°C

Unipolar

±0.5

Bipolar

±0.8

Gain Error

Fully differential

±1

%FSR

Unipolar

1.5

Gain Temperature Coefficient

Bipolar

1.0

ppm/°C