SP8121DS/02

SP8121 Monolithic, 12-Bit Data Acquisition System

© Copyright 2000 Sipex Corporation

2

ABSOLUTE MAXIMUM RATINGS

V

V

Analog Common to Digital Common Ground ............... -0.5V to +1V

Digital Inputs to Common Ground .................... -0.5V to V

Digital Outputs to Common Ground ................. -0.5V to V

Multiplexer Analog Inputs ...................................... -16.5V to +31.5V

Gain and Offset Adjustment ................................ -0.5V to V

Analog Input Maximum Current ........................................... 100mA

Temperature with Bias Applied ............................. -55

°C to +125°C

Storage Temperature ............................................ -65

°C to +150°C

Lead Temperature, Soldering .................................... 300

°C, 10sec

CAUTION:

ESD (ElectroStatic Discharge) sensitive

device. Permanent damage may occur on

unconnected devices subject to high energy

electrostatic fields. Unused devices must be

stored in conductive foam or shunts.

Personnel should be properly grounded prior

to handling this device. The protective foam

should be discharged to the destination

socket before devices are removed.

SPECIFICATIONS

(T

MIN.

TYP.

MAX.

UNIT

CONDITIONS

ANALOG INPUTS

Input Voltage Range

0 to +5

V

Multiplexer Inputs

8

Configuration

Single-ended

Input Impedance

ON Channel

Ω

Parallel with 30pF

OFF Channel

Ω

Parallel with 5pF

Input Bias Current/Channel

+10

nA

25

°C

+250

nA

-55

°C to +125°C

Crosstalk

OFF to ON Channel

-90

dB

10kHz, 0V to +5V

Pk-to-pk

-80

dB

50kHz, 0V to +5V

Pk-to-pk

-70

dB

100kHz, 0V to +5V

Pk-to-pk

ACCURACY

Resolution

12

Bits

Linearity Error

–K

+0.5

LSB

–J

+1

LSB

Differential Non-Linearity

–K

+1

LSB

–J

+2

LSB

Offset Error

+0.5

+4

LSB

Adjustable to zero

Gain Error

+0.3

+1

%FSR

Adjustable to zero

No Missing Codes

–K

Guaranteed

TRANSFER CHARACTERISTICS

Throughput Rate

100

kHz

MUX Settling/Acquisition

1.9

µs

A/D Conversion

8.1

µs

STABILITY

Linearity

+0.5

+2.5

ppm/

°C

Offset

+5

+25

ppm/

°C

Gain

+10

+50

ppm/

°C

DIGITAL INPUTS

Capacitance

5

pF

Logic Levels

V

IH

+2.4

+5.5

V

V

IL

-0.5

+0.8

V

I

IH

+5

µA

I

IL

+5

µA