AD4005BRMZ-RL7 datasheet(4/37 Pages) AD

部件名	AD4005BRMZ-RL7

功能描述	Precision, Differential SAR ADCs

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制造商	AD [Analog Devices]

网页	http://www.analog.com

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4 / 37 page

AD4001/AD4005

Data Sheet

Rev. B | Page 4 of 37

SPECIFICATIONS

VDD = 1.71 V to 1.89 V, VIO = 1.71 V to 5.5 V, VREF = 5 V, all specifications TMIN to TMAX, high-Z mode disabled, span compression disabled,

turbo mode enabled, and sampling frequency (fS) = 2 MSPS for the AD4001 and fS = 1 MSPS for the AD4005, unless otherwise noted.

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

RESOLUTION

16

Bits

ANALOG INPUT

Voltage Range

VIN+ − VIN−

−VREF

+VREF

V

Span compression enabled

−VREF × 0.8

+VREF × 0.8

V

Operating Input Voltage

VIN+, VIN− to GND

−0.1

VREF + 0.1

V

Span compression enabled

0.1 × VREF

0.9 × VREF

V

Common-Mode Input Range

VREF/2 − 0.125

VREF/2

VREF/2 + 0.125

V

Common-Mode Rejection Ratio (CMRR)

fIN = 500 kHz

68

dB

Analog Input Current

Acquisition phase, T = 25°C

0.3

nA

High-Z mode enabled, converting

dc input at 2 MSPS

1

µA

THROUGHPUT

Complete Cycle

AD4001

500

ns

AD4005

1000

ns

Conversion Time

290

320

ns

Acquisition Phase1

AD4001

290

ns

AD4005

790

ns

Throughput Rate2

AD4001

0

2

MSPS

AD4005

0

1

MSPS

Transient Response3

250

ns

DC ACCURACY

No Missing Codes

16

Bits

Integral Nonlinearity Error (INL)

−0.4

±0.2

+0.4

LSB

Differential Nonlinearity Error (DNL)

−0.5

±0.2

+0.5

LSB

Transition Noise

0.35

LSB

Zero Error

−1.5

±0.1

+1.5

LSB

Zero Error Drift4

−0.28

+0.28

ppm/°C

Gain Error

−16.5

±0.4

+16.5

LSB

Gain Error Drift4

−0.23

+0.23

ppm/°C

Power Supply Sensitivity

VDD = 1.8 V ± 5%

0.25

LSB

1/f Noise5

Bandwidth = 0.1 Hz to 10 Hz

6

µV p-p

AC ACCURACY

Dynamic Range

96.3

dB

Total RMS Noise

54

µV rms

fIN = 1 kHz, −0.5 dBFS, VREF = 5 V

Signal-to-Noise Ratio (SNR)

95.6

96.2

dB

Spurious-Free Dynamic Range (SFDR)

122

dB

Total Harmonic Distortion (THD)

−123

dB

Signal-to-Noise-and-Distortion Ratio

(SINAD)

95.5

96

dB

Oversampled Dynamic Range

Oversampling ratio (OSR) = 256,

VREF = 5 V

120

dB

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