SP7800ADS/02

SP7800A 12-Bit 3

µs Sampling A/D Converter

© Copyright 2000 Sipex Corporation

2

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device

at these or any other above those indicated in the operation

sections of the specifications below is not implied. Exposure to

absolute maximum rating conditions for extended periods of time

may affect reliability.

V

Pin 23 (V

Analog Common to Digital Common ......................................

±0.3V

Control Inputs to Digital Common ....................... –0.3 to V

Analog Input Voltage ..............................................................

±20V

Maximum Junction Temperature ........................................... 160

°C

Internal Power Dissipation .................................................. 750mW

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

°C

Thermal Resistance. Ø

Plastic DIP ....................................................................... 50

°C/W

SOIC ............................................................................ 100

°CC/W

SPECIFICATIONS

T

PARAMETER

MIN .

TYP.

MAX .

UNITS

CONDITIONS

RESOLUTION

12

BITS

ANALOG INPUT

Voltage Ranges

±10V/±5V

V

Impedance

±10V Range

4.7

6.7

8.7

k

Ω

T

±5V Range

2.7

3.9

5.1

k

Ω

T

THROUGHPUT SPEED

Conversion Time

2.6

2.7

µs

Conversion alone

Complete Cycle

333

µs

Acquisition plus conversion

Throughput Rate

3.0

kHz

DC ACCURACY

T

Full Scale Error

Note 1

–J

±0.50

%

–K

±0.35

%

Integral Linearity Error

Note 2

–J

±1

LSB

–K

LSB

Differential Linearity Error

–J

±1

LSB

–K

LSB

No Missing Codes

Guaranteed

Bipolar Zero

Note 1

–J

±4

LSB

–K

±2

LSB

Power Supply Sensitivity

Note 3

–J

±.1

LSB

–K

±0.5

LSB

AC ACCURACY

T

Spurious-Free Dynamic Range

–J

74

77

dB

Note 4; f

–K

77

80

dB

Total Harmonic Distortion

f

–J

–77

–74

dB

–K

–80

–77

dB

Two-tone Intermod. Distortion

f

28.5kHz (-6dB)

–J

–77

–74

dB

–K

–80

–77

dB