AD7265ACP データシートの表示（PDF） - Analog Devices

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AD7265ACP

Differential Input, Dual 1 MSPS, 12-Bit, 3-Channel SAR ADC

Analog Devices 

Preliminary Technical Data

AD7265

AD7265—SPECIFICATIONS1

Table 1. TA = TMIN to TMAX, VDD = 2.7 V to 5.25 V, fSCLK = 16 MHz, fS = 1 MSPS, VDRIVE = 2.7 V to 5.25 V; Reference = 2.5 V ± 1%,

unless otherwise noted

Parameter

DYNAMIC PERFORMANCE

Specification Unit

Test Conditions/Comments

Signal-to-Noise + Distortion Ratio (SINAD)2

Total Harmonic Distortion (THD)2

Spurious Free Dynamic Range (SFDR)2

Intermodulation Distortion (IMD)2

Second Order Terms

Third Order Terms

Channel to Channel Isolation

SAMPLE AND HOLD

Aperture Delay3

Aperture Jitter3

Aperture Delay Matching3

Full Power Bandwidth

DC ACCURACY

Resolution

Integral Nonlinearity2

Differential Nonlinearity2

0 V to VREF Input Range

Offset Error

Offset Error Match

Gain Error

Gain Error Match

0 V to 2 × VREF Input Range

Positive Gain Error

Zero Code Error

Zero Code Error Match

Negative Gain Error

ANALOG INPUT

Input Voltage Ranges

DC Leakage Current

Input Capactiance

REFERENCE INPUT/OUTPUT

Reference Output Voltage4

Reference Input Voltage Range

DC Leakage Current

Input Capactiance

VREF Output Impedance5

Reference Temperature Coefficient

LOGIC INPUTS

Input High Voltage, VINH

Input Low Voltage, VINL

Input Current, IIN

Input Capacitance, CIN3

70

–75

–76

–88

–88

–88

10

50

200

20

2.5

12

±1

±1.5

±0.95

±3

±0.5

±2

±0.6

±2

±3

±1

±1

0 V to VREF

0 V to 2 x VREF

±500

±1

30

10

2.49/2.51

0.1/2.5

±30

±160

20

25

25

10

2.8

0.4

±1

10

dB min

dB max

dB max

fIN = 100 kHz sine wave

fIN = 100 kHz sine wave

fIN = 100 kHz sine wave

dB typ

dB typ

dB typ

ns max

ps typ

ps max

MHz typ

MHz typ

@ 3 dB

@0.1 dB

Bits

LSB max

LSB max

LSB max

LSB max

LSB typ

LSB max

LSB typ

LSB max

LSB max

LSB typ

LSB max

±0.5 LSB typ; differential configuration

±0.5 LSB typ; single-ended configuration

Guaranteed no missed codes to 12 bits

Straight binary output coding

Twos complement output coding

V

V

nA max

µA max

pF typ

pF typ

RANGE pin low upon CS falling edge

RANGE pin high upon CS falling edge

TA = –40°C to +85°C

85°C < TA ≤ 125°C

When in track

When in hold

V min/V max

V min/V max

µA max

µA max

pF typ

Ω typ

ppm/°C max

ppm/°C typ

See Typical Performance plots

VREF pin

DCAPA, DCAPB pins

V min

V max

µA max

pF max

Typically 15 nA, VIN = 0 V or VDRIVE

Rev. PrA | Page 3 of 16

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