AD7478AARM-REEL データシートの表示（PDF） - Analog Devices

部品番号

コンポーネント説明

メーカー

AD7478AARM-REEL

2.35 V to 5.25 V, 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SC70

Analog Devices 

AD7476A/AD7477A/AD7478A

Parameter

A Grade2

Unit

LOGIC INPUTS

Input High Voltage, VINH

Input Low Voltage, VINL

Input Current, IIN, SCLK Pin

Input Current, IIN, CS Pin

Input Capacitance, CIN5

LOGIC OUTPUTS

Output High Voltage, VOH

Output Low Voltage, VOL

Floating-State Leakage Current

Floating-State Output Capacitance5

Output Coding

2.4

V min

1.8

V min

0.8

V max

0.4

V max

± 0.5

µA max

± 10

nA typ

5

pF max

VDD – 0.2

0.4

V min

V max

±1

µA max

5

pF max

Straight (Natural) Binary

CONVERSION RATE

Conversion Time

700

Track-and-Hold Acquisition Time3

250

Throughput Rate

1

ns max

ns max

MSPS max

POWER REQUIREMENTS

VDD

IDD

Normal Mode (Static)

Normal Mode (Operational)

Full Power-Down Mode (Static)

Full Power-Down Mode (Dynamic)

Power Dissipation6

Normal Mode (Operational)

Full Power-Down Mode

2.35/5.25

2.5

1.2

3.5

1.7

1

0.6

0.3

17.5

5.1

5

V min/max

mA typ

mA typ

mA max

mA max

µA max

mA typ

mA typ

mW max

mW max

µW max

NOTES

1Temperature range from –40°C to +85°C.

2Operational from VDD = 2.0 V, with input high voltage (VINH) 1.8 V min.

3See Terminology section.

4SC70 values guaranteed by characterization.

5Guaranteed by characterization.

6See Power vs. Throughput Rate section.

Specifications subject to change without notice.

Test Conditions/Comments

VDD = 2.35 V

VDD = 5 V

VDD = 3 V

Typically 10 nA, VIN = 0 V or VDD

ISOURCE = 200 µA, VDD = 2.35 V to 5.25 V

ISINK = 200 µA

14 SCLK Cycles with SCLK at 20 MHz

Digital I/Ps = 0 V or VDD

VDD = 4.75 V to 5.25 V, SCLK ON or OFF

VDD = 2.35 V to 3.6 V, SCLK ON or OFF

VDD = 4.75 V to 5.25 V, fSAMPLE = 1 MSPS

VDD = 2.35 V to 3.6 V, fSAMPLE = 1 MSPS

Typically 50 nA

VDD = 5 V, fSAMPLE = 100 kSPS

VDD = 3 V, fSAMPLE = 100 kSPS

VDD = 5 V, fSAMPLE = 1 MSPS

VDD = 3 V, fSAMPLE = 1 MSPS

VDD = 5 V

AD7478A–SPECIFICATIONS1 (VDD= 2.35 V to 5.25 V, fSCLK= 20 MHz, fSAMPLE= 1 MSPS, unless otherwise noted;

TA = TMIN to TMAX, unless otherwise noted.)

Parameter

A Grade2

Unit

Test Conditions/Comments

DYNAMIC PERFORMANCE

Signal-to-Noise + Distortion (SINAD)3

49

Total Harmonic Distortion (THD)3

–65

Peak Harmonic or Spurious Noise (SFDR)3 –65

Intermodulation Distortion (IMD)3

Second-Order Terms

–76

Third-Order Terms

–76

Aperture Delay

10

Aperture Jitter

30

Full Power Bandwidth

13.5

2

dB min

dB max

dB max

dB typ

dB typ

ns typ

ps typ

MHz typ

MHz typ

fIN = 100 kHz Sine Wave

fa = 100.73 kHz, fb = 90.7 kHz

fa = 100.73 kHz, fb = 90.7 kHz

@ 3 dB

@ 0.1 dB

–4–

REV. C

Share Link: