ADC78H90

SNAS227D – NOVEMBER 2003 – REVISED MARCH 2013

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ADC78H90 Converter Electrical Characteristics

(1)

Limits

Symbol

Parameter

Conditions

Typical

Units

(2)

STATIC CONVERTER CHARACTERISTICS

Resolution with No Missing Codes

12

Bits

INL

Integral Non-Linearity

±1

LSB (max)

DNL

Differential Non-Linearity

±1

LSB (max)

Offset Error

±2

LSB (max)

OEM

Offset Error Match

±2

LSB (max)

GE

Gain Error

±3

LSB (max)

GEM

Gain Error Match

±3

LSB (max)

DYNAMIC CONVERTER CHARACTERISTICS

SINAD

Signal-to-Noise Plus Distortion Ratio

73

70

dB (min)

SNR

Signal-to-Noise Ratio

73

70.8

dB (min)

THD

Total Harmonic Distortion

−86

−74

dB (max)

SFDR

Spurious-Free Dynamic Range

88

75.6

dB (min)

ENOB

Effective Number of Bits

11.8

11.3

Bits (min)

Channel-to-Channel Crosstalk

-82

dB

Intermodulation Distortion, Second

-93

dB

Order Terms

IMD

Intermodulation Distortion, Third Order

-90

dB

Terms

11

MHz

FPBW

-3 dB Full Power Bandwidth

8

MHz

ANALOG INPUT CHARACTERISTICS

Input Range

V

DC Leakage Current

±1

µA (max)

Track Mode

33

pF

Input Capacitance

Hold Mode

3

pF

DIGITAL INPUT CHARACTERISTICS

2.4

V (min)

Input High Voltage

2.1

V (min)

Input Low Voltage

0.8

V (max)

Input Current

±0.01

±1

µA (max)

Digital Input Capacitance

2

4

pF (max)

DIGITAL OUTPUT CHARACTERISTICS

Output High Voltage

V (min)

+5.25V

Output Low Voltage

0.4

V (max)

±1

µA (max)

TRI-STATE® Output Capacitance

2

4

pF (max)

Output Coding

Straight (Natural) Binary

(1)

Data sheet min/max specification limits are ensured by design, test, or statistical analysis.

(2)

Tested limits are specified to TI's AOQL (Average Outgoing Quality Level).

4

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