2

5/25/01

SPT7855

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

SPT7855

PARAMETERS

CONDITIONS

LEVEL

MIN

TYP

MAX

UNITS

Resolution

10

Bits

DC Accuracy

Integral Linearity Error (ILE)

VI

±1.0

LSB

Differential Linearity Error (DLE)

VI

±0.5

LSB

No Missing Codes

VI

Guaranteed

Analog Input

Input Voltage Range

VI

V

Input Resistance

IV

50

k

Ω

Input Capacitance

V

5.0

pF

Input Bandwidth

(Small Signal)

V

100

MHz

Offset

V

±2.0

LSB

Gain Error

V

±2.0

LSB

Reference Input

Resistance

VI

300

500

600

Ω

Bandwidth

V

100

150

MHz

Voltage Range

IV

0

–

2.0

V

IV

3.0

–

V

V

1.0

4.0

5.0

V

90

mV

75

mV

Reference Settling Time

V

15

Clock Cycles

V

20

Clock Cycles

Conversion Characteristics

Maximum Conversion Rate

VI

25

MHz

Minimum Conversion Rate

IV

2

MHz

Pipeline Delay (Latency)

IV

12

Clock Cycles

Aperture Delay Time

V

8

ns

Aperture Jitter Time

V

15

ps (p-p)

Dynamic Performance

Effective Number of Bits (ENOB)

VI

8.5

Bits

VI

8.3

Bits

Signal-to-Noise Ratio (SNR)

(without Harmonics)

VI

54.0

57

dB

VI

53.0

56

dB

Supply Voltages

Input Voltages

AGND – DGND .............................................. ±100 mV

Output

Digital Outputs ................................................... 10 mA

Temperature

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

Junction Temperature ........................................ 175 °C

Lead Temperature, (soldering 10 seconds) ....... 300 °C

Storage Temperature ............................ –65 to +150 °C