AD7819YRU(RevA) データシートの表示（PDF） - Analog Devices

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AD7819YRU
(Rev.:RevA)

+2.7 V to +5.5 V, 200 kSPS 8-Bit Sampling ADC

Analog Devices 

AD7819–SPECIFICATIONS1 (GND = 0 V, VREF = +VDD = 3 V ؎ 10% to 5 V ؎ 10%). All specifications –40؇C

to +125؇C unless otherwise noted.)

Parameter

Y Version

Units

DYNAMIC PERFORMANCE

Signal to (Noise + Distortion) Ratio1

48

Total Harmonic Distortion (THD)1

–70

Peak Harmonic or Spurious Noise1

–70

Intermodulation Distortion2

2nd Order Terms

–77

3rd Order Terms

–77

dB min

dB typ

dB typ

dB typ

dB typ

DC ACCURACY

Resolution

8

Minimum Resolution for Which

No Missing Codes Are Guaranteed

8

Relative Accuracy1

Differential Nonlinearity (DNL)1

Total Unadjusted Error1

Gain Error1

Offset Error1

± 0.5

± 0.5

±1

± 0.5

± 0.5

Bits

Bits

LSB max

LSB max

LSB max

LSB max

LSB max

ANALOG INPUT

Input Voltage Range

Input Leakage Current2

Input Capacitance2

0

VREF

±1

15

V min

V max

µA max

pF mx

REFERENCE INPUTS2

VREF Input Voltage Range

Input Leakage Current

Input Capacitance

1.2

V min

VDD

V max

±1

µA max

20

pF max

LOGIC INPUTS2

VINH, Input High Voltage

2.0

VINL, Input Low Voltage

0.4

Input Current, IIN

±1

Input Capacitance, CIN

8

LOGIC OUTPUTS

Output High Voltage, VOH

2.4

Output Low Voltage, VOL

0.4

High Impedance Leakage Current

±1

High Impedance Capacitance

15

V min

V max

µA max

pF max

V min

V max

µA max

pF max

CONVERSION RATE

Conversion Time

Track/Hold Acquisition Time1

4.5

µs max

100

ns max

POWER SUPPLY

VDD

IDD

Normal Operation

Power-Down

Power Dissipation

Normal Operation

Power-Down

Auto Power-Down (Mode 2)

1 kSPS Throughput

10 kSPS Throughput

50 kSPS Throughput

2.7–5.5

3.5

1

17.5

5

57.75

577.5

2.89

Volts

mA max

µA max

mW max

µW max

µW max

µW max

mW max

NOTES

1See Terminology section.

2Sample tested during initial release and after any redesign or process change that may affect this parameter.

Specifications subject to change without notice.

Test Conditions/Comments

fIN = 30 kHz, fSAMPLE = 136 kHz

fa = 29.1 kHz; fb = 29.8 kHz

(0.8 V max, VDD = 5 V)

Typically 10 nA, VIN = 0 V to VDD

ISOURCE = 200 µA

ISINK = 200 µA

See DC Acquisition Section

For Specified Performance

Digital Inputs = 0 V or VDD

VDD = 5 V

VDD = 5 V

VDD = 3 V

–2–

REV. A

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