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SPT7921

ELECTRICAL SPECIFICATIONS

unless otherwise specified.

TEST

TEST

SPT7921

PARAMETERS

CONDITIONS

LEVEL

MIN

TYP

MAX

UNITS

Resolution

12

Bits

DC Accuracy

+25

°C

Integral Nonlinearity

± Full Scale

V

±2.0

LSB

Differential Nonlinearity

100 kHz Sample Rate

V

±0.8

LSB

No Missing Codes

VI

Guaranteed

Analog Input

Input Voltage Range

VI

±2.0

V

Input Bias Current

I

30

60

µA

Input Resistance

I

100

300

k

Ω

Input Capacitance

V

5

pF

Input Bandwidth

3 dB Small Signal

V

120

MHz

+FS Error

V

±5.0

LSB

-FS Error

V

±5.0

LSB

Reference Input

Reference Ladder Resistance

VI

500

800

Ω

Reference Ladder Tempco

V

0.8

Ω/°C

Timing Characteristics

Maximum Conversion Rate

VI

20

MHz

Overvoltage Recovery Time

V

20

ns

Pipeline Delay (Latency)

IV

1

Clock Cycle

Output Delay

V

14

18

ns

Aperture Delay Time

1

ns

Aperture Jitter Time

V

5

ps-RMS

Dynamic Performance

Effective Number of Bits

10.2

Bits

10.0

Bits

9.5

Bits

Signal-To-Noise Ratio

(without Harmonics)

I

64

67

dB

IV

58

61

dB

I

64

66

dB

IV

58

60

dB

I

62

64

dB

IV

58

60

dB

Supply Voltages

Input Voltages

Reference Ladder Current ..................................... 12 mA

Output

Digital Outputs .............................................. 0 to -30 mA

Temperature

Operating Temperature ................................. 0 to +70

°C

Junction Temperature ......................................... +175

°C

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

°C

Storage Temperature ................................ -65 to +150

°C

Note:

1.

Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal

applied conditions in typical applications.