1418CG Просмотр технического описания (PDF) - Linear Technology

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1418CG

Low Power, 14-Bit, 200ksps ADC with Serial and Parallel I/O

Linear Technology 

LTC1418

CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Notes 5, 6)

LTC1418

LTC1418A

PARAMETER

CONDITIONS

MIN TYP MAX MIN TYP MAX UNITS

Resolution (No Missing Codes)

l 13

14

Bits

Integral Linearity Error

(Note 7)

l

±0.8 ±2

±0.5 ±1.25 LSB

Differential Linearity Error

l

±0.7 ±1.5

±0.35 ±1

LSB

Offset Error

(Note 8)

l

±5 ±20

±2 ±10

LSB

Full-Scale Error

Internal Reference

External Reference = 2.5V

±10 ±60

±5 ±30

±20 ±60

LSB

±5 ±15

LSB

Full-Scale Tempco

IOUT(REF) = 0, Internal Reference, Commercial l

±15

IOUT(REF) = 0, Internal Reference, Industrial

IOUT(REF) = 0, External Reference

±5

±10 ±45 ppm/°C

±20

ppm/°C

±1

ppm/°C

ANALOG INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise

specifications are at TA = 25°C. (Note 5)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

VIN

Analog Input Range (Note 9)

4.75V ≤ VDD ≤ 5.25V (Unipolar)

l

4.75V ≤ VDD ≤ 5.25V, –5.25V ≤ VSS ≤ –4.75V (Bipolar) l

IIN

Analog Input Leakage Current

CS = High

l

CIN

Analog Input Capacitance

Between Conversions (Sample Mode)

During Conversions (Hold Mode)

0 to 4.096

V

±2.048

V

±1

µA

25

pF

5

pF

tACQ

Sample-and-Hold Acquisition Time Commercial

Industrial

l

300

1000

ns

l

300

1000

ns

DYNAMIC ACCURACY The l denotes the specifications which apply over the full operating temperature range,

otherwise specifications are at TA = 25°C. (Note 5)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

S/(N + D) Signal-to-Noise Plus Distortion Ratio 97.5kHz Input Signal

l

79

81.5

dB

THD

Total Harmonic Distortion

100kHz Input Signal, First 5 Harmonics l

–94

–86

dB

SFDR

Spurious Free Dynamic Range

100kHz Input Signal

l

86

95

dB

IMD

Intermodulation Distortion

Full Power Bandwidth

fIN1 = 97.7kHz, fIN2 = 104.2kHz

–90

dB

5

MHz

Full Linear Bandwidth

S/(N + D) ≥ 77dB

0.5

MHz

For more information www.linear.com/LTC1418

1418fa

3

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