SPT

2

5/9/01

SPT7720

Temperatures

Operating Temperature .......................... –40 to +85 °C

Storage Temperature ............................ –65 to +125 °C

Supply Voltages

Input Voltages

Note 1. Operation at any Absolute Maximum Rating is not implied. See

Electrical Specifications for proper nominal applied conditions in

typical applications.

ELECTRICAL SPECIFICATIONS

TEST

TEST

SPT7720

PARAMETERS

CONDITIONS

LEVEL

MIN

TYP

MAX

UNITS

DC Accuracy

Differential Linearity Error (DLE)

+25 °C

I

±0.41

±0.75

LSB

–40 °C to +85 °C

V

±1.0

±1.0

LSB

Integral Linearity Error (ILE)

+25 °C

I

±0.56

±1.0

LSB

–40 °C to +85 °C

V

±0.9

±1.2

LSB

No Missing Codes

VI

Guaranteed

Gain Error

+25 °C

I

±1.06

±1.08

%FS

Gain Tempco

V

0

ppm/°C

Switching Performance

Encode Pulsewidth High

+25 °C

IV

2.125

15

ns

Encode Pulsewidth Low

+25 °C

IV

2.125

15

ns

+25 °C

V

0.57

ns

Aperture Uncertainty (Jitter) & Noise

+25 °C

V

4.5

ps rms

+25 °CIV

0

ns

+25 °C

IV

0.5

ns

+25 °C

IV

2.0

ns

IV

4.4

5.7

ns

IV

6.7

8.0

ns

Dynamic Performance

Transient Response

+25 °C

V

1.5

ns

Overvoltage Recovery Time

+25 °C

V

1.5

ns

Signal-to-Noise Ratio (SNR)

(without harmonics)

+25 °CV

47

dB

–40 °C to +85 °CV

47

dB

+25 °C

I

44

46.3

dB

–40 °C to +85 °C

V

45.8

dB

Signal-to-Noise Ratio and Distortion

(SINAD)

+25 °CV

47

dB

–40 °C to +85 °CV

43

dB

+25 °C

I

43

44.9

dB

–40 °C to +85 °C

V

44.5

dB

2nd Harmonic Distortion

+25 °CV

–59

dBc

+25 °CV

–55.4

dBc

3rd Harmonic Distortion

+25 °CV

–58

dBc

+25 °CV

–56.4

dBc

Total Harmonic Distortion (THD)

+25 °CI

–50.9

–46.0

dBc

–40 to +85 °CV

–48.3

dBc

Effective Number of Bits (ENOB)

+25 °C

I

6.9

7.16

Bits

–40 to +85 °C

V

6.5

Bits