2

11/8/01

SPT7721

ELECTRICAL SPECIFICATIONS

TEST

TEST

SPT7721

PARAMETERS

CONDITIONS

LEVEL

MIN

TYP

MAX

UNITS

Resolution

8

Bits

DC Performance

Differential Linearity Error (DLE)

+25 °C

V

–0.70/+1.05

LSB

–40 °C to +85 °C

V

–0.95/+1.5

LSB

Integral Linearity Error (ILE)

+25 °C

V

±1.7

LSB

Best Fit

–40 °C to +85 °C

V

±2.25

LSB

No Missing Codes

I

Guaranteed

Analog Input

Input Voltage Range

+25 °C

V

±470

Gain Variation

VI

2

%

IV

2.3

2.5

3.0

V

Input Bias Current

VI

10

µA

Input Resistance

+25 °C

V

50

k

Ω

Input Capacitance

+25 °C

V

4

pF

Input Bandwidth

+25 °C (–3 dB of FS)

V

220

MHz

Offset Error

VI

±10

mV

Offset Power Supply Rejection Ratio

V

0.5

mV/V

Timing Characteristics

Maximum Conversion Rate

VI

250

MSPS

–40 °C to +85 °C

IV

6

8

10.5

ns

Output Delay Tempco

V

22

ps/°C

IV

0.5

ns

Aperture Jitter Time

IV

2

ps rms

Pipeline Delay (Latency)

Single Channel Mode

V

2.5

Clocks

Demuxed Interleaved Mode

V

2.5

Clocks

Demuxed Parallel Mode

Channel B

V

2.5

Clocks

Channel A

V

3.5

Clocks

IV

467

ns

IV

5.3

6.16

7.8

ns

Dynamic Performance

Effective Number of Bits (ENOB)

+25 °C

VI

5.8

6.4

Bits

–40 °C to +85 °C

IV

5.5

6.0

Bits

Signal-to-Noise Ratio (SNR)

+25 °C

VI

42

43

dB

–40 °C to +85 °C

IV

36

40

dB

Temperatures

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

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

Supply Voltages

Input Voltages

Note: Operation at any Absolute Maximum Rating is not implied.

See Electrical Specifications for proper applied conditions in

typical applications.

ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur) 25 °C