AD7492ARU-REEL7 データシートの表示（PDF） - Analog Devices

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AD7492ARU-REEL7

1.25 MSPS, 16 mW Internal REF and CLK, 12-Bit Parallel ADC

Analog Devices 

AD7492

Parameter

DC ACCURACY

Resolution

Integral Nonlinearity

Differential Nonlinearity

Offset Error

Gain Error

ANALOG INPUT

Input Voltage Ranges

DC Leakage Current

Input Capacitance

REFERENCE OUTPUT

REF OUT Output Voltage Range

LOGIC INPUTS

Input High Voltage, VINH4

Input Low Voltage, VINL4

Input Current, IIN

Input Capacitance, CIN3, 5

LOGIC OUTPUTS

Output High Voltage, VOH

Output Low Voltage, VOL

Floating-State Leakage Current

Floating-State Output Capacitance

Output Coding

CONVERSION RATE

Conversion Time

Track/Hold Acquisition Time

Throughput Rate

POWER REQUIREMENTS

VDD

IDD

Normal Mode

A Version2

12

±1.5

+1.5/−0.9

±9

±2.5

0 to 2.5

±1

33

2.5

VDRIVE × 0.7

VDRIVE × 0.3

±1

10

VDRIVE − 0.2

0.4

±10

10

Straight (Natural)

Binary

880

120

1

400

2.7/5.25

3

B Version2

12

±0.6

±1

+1.5/−0.9

±9

±2.5

0 to 2.5

±1

33

2.5

VDRIVE × 0.7

VDRIVE × 0.3

±1

10

VDRIVE − 0.2

0.4

±10

10

Straight (Natural)

Binary

880

120

1

2.7/5.25

3

Quiescent Current

Partial Sleep Mode

Full Sleep Mode

Power Dissipation4, 6

Normal Mode

Partial Sleep Mode

Full Sleep Mode

1.8

1.8

250

250

1

1

15

15

1.25

1.25

5

5

1 Only A version specification applies to the AD7492-4.

2 Temperature ranges as follows: A and B versions: −40°C to +85°C.

3 500 kHz sine wave specifications do not apply for the AD7492-4.

4 VINH and VINL trigger levels are set by the VDRIVE voltage. The logic interface circuitry is powered by VDRIVE.

5 Sample tested @ 25°C to ensure compliance.

6 See the Power vs. Throughput section.

Unit

Bits

LSB max

LSB typ

LSB max

LSB max

LSB max

LSB max

V

μA max

pF typ

V

V min

V max

μA max

pF max

V min

V max

μA max

pF max

Test Conditions/Comments

fS = 1 MSPS for AD7492

fS = 400 kSPS for AD7492-4

VDD = 5 V

VDD = 3 V

Guaranteed no missed codes to

12 bits (A and B versions)

±1.5% for specified performance

VDD = 5 V ± 5%

VDD = 5 V ± 5%

Typically 10 nA, VIN = 0 V or VDD

ISOURCE = 200 μA

ISINK = 200 μA

ns max

ns min

MSPS max

kSPS max

Conversion time + acquisition

time for AD7492

Conversion time + acquisition

time for AD7492-4

V min/max

mA max

mA max

μA max

μA max

mW max

mW max

μW max

Digital I/Ps = 0 V or DVDD.

fS = 1 MSPS, typ 2.2 mA

fS = 400 kSPS, Typ 2.2 mA

(AD7492-4)

Static, typ 190 μA

Static, typ 200 nA

Digital I/Ps = 0 V or DVDD

VDD = 5 V

VDD = 5 V

VDD = 5 V

Rev. A | Page 5 of 24

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