EVAL-AD7440CB 查看數據表（PDF） - Analog Devices

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EVAL-AD7440CB

Differential Input, 1 MSPS 10-Bit and 12-Bit ADCs in an 8-Lead SOT-23

Analog Devices 

AD7440/AD7450A

AD7450A–SPECIFICATIONS

Table 2. VDD = 2.7 V to 3.6 V, fSCLK = 18 MHz, fS = 1 MSPS, VREF = 2.0 V; VDD = 4.75 V to 5.25 V, fSCLK = 18 MHz, fS = 1 MSPS,

VREF = 2.5 V; VCM1 = VREF; TA = TMIN to TMAX, unless otherwise noted. Temperature range for B Version: –40°C to +85°C.

Parameter

DYNAMIC PERFORMANCE

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

Total Harmonic Distortion (THD)2

Peak Harmonic or Spurious Noise2

Intermodulation Distortion (IMD)2

Second-Order Terms

Third-Order Terms

Aperture Delay2

Aperture Jitter2

Full Power Bandwidth2, 3

DC ACCURACY

Resolution

Integral Nonlinearity (INL)2

Differential Nonlinearity (DNL)2

Zero-Code Error2

Positive Gain Error2

Negative Gain Error2

ANALOG INPUT

Full-Scale Input Span

Absolute Input Voltage

VIN+

VIN–

DC Leakage Current

Input Capacitance

REFERENCE INPUT

VREF Input Voltage

DC Leakage Current

VREF Input Capacitance

LOGIC INPUTS

Input High Voltage, VINH

Input Low Voltage, VINL

Input Current, IIN

Input Capacitance, CIN7

LOGIC OUTPUTS

Output High Voltage, VOH

Output Low Voltage, VOL

Floating-State Leakage Current

Floating-State Output Capacitance7

Output Coding

Test Conditions/Comments

fIN = 100 kHz

VDD = 4.75 V to 5.25 V, –86 dB typ

VDD = 2.7 V to 3.6 V, –84 dB typ

VDD = 4.75 V to 5.25 V, –86 dB typ

VDD = 2.7 V to 3.6 V, –84 dB typ

fa = 90 kHz, fb = 110 kHz

@ –3 dB

@ –0.1 dB

Guaranteed no missed codes to 12 bits

2 × VREF 4

VCM = VREF

VCM = VREF

When in track-and-hold

VDD = 4.75 V to 5.25 V

(±1% tolerance for specified performance)

VDD = 2.7 V to 3.6 V

(±1% tolerance for specified performance)

When in track-and-hold

Typically 10 nA, VIN = 0 V or VDD

VDD = 4.75 V to 5.25 V; ISOURCE = 200 μA

VDD = 2.7 V to 3.6 V; ISOURCE = 200 μA

ISINK = 200 μA

B Version

70

–76

–74

–76

–74

–89

–89

5

50

20

2.5

12

±1

±0.95

±6

±2

±2

VIN+ – VIN–

VCM ± VREF/2

VCM ± VREF/2

±1

30/10

2.55

2.06

±1

10/30

2.4

0.8

±1

10

2.8

2.4

0.4

±1

10

Twos complement

Unit

dB min

dB max

dB max

dB max

dB max

dB typ

dB typ

ns typ

ps typ

MHz typ

MHz typ

Bits

LSB max

LSB max

LSB max

LSB max

LSB max

V

V

V

μA max

pF typ

V

V

μA max

pF typ

V min

V max

μA max

pF max

V min

V min

V max

μA max

pF max

Rev. C | Page 5 of 28

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