AD7667_17 datasheet(4/29 Pages) AD

Numer części	AD7667

Szczegółowy opis	16-Bit 1 MSPS PulSAR Unipolar ADC with Reference

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AD7667

Rev. 0 | Page 3 of 28

SPECIFICATIONS

Table 2. –40°C to +85°C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.

Parameter

Conditions

Min

Typ

Max

Unit

RESOLUTION

16

Bits

ANALOG INPUT

Voltage Range

VIN – VINGND

0

VREF

V

Operating Input Voltage

VIN

–0.1

+3

V

VINGND

–0.1

+0.5

V

Analog Input CMRR

fIN = 100 kHz

64

dB

Input Current

1 MSPS Throughput

19

µA

Input Impedance1

THROUGHPUT SPEED

Complete Cycle

In Warp Mode

1

µs

Throughput Rate

In Warp Mode

1

1000

kSPS

Time between Conversions

In Warp Mode

1

ms

Complete Cycle

In Normal Mode

1.25

µs

Throughput Rate

In Normal Mode

0

800

kSPS

Complete Cycle

In Impulse Mode

1.5

µs

Throughput Rate

In Impulse Mode

0

666

kSPS

DC ACCURACY

Integral Linearity Error

–2.0

+2.0

LSB2

No Missing Codes

16

Bits

Differential Linearity Error

–1.0

+1.5

LSB

Transition Noise

0.7

LSB

Unipolar Zero Error, TMIN to TMAX3

±25

LSB

Unipolar Zero Error Temperature Drift

±1.0

ppm/°C

Full-Scale Error, TMIN to TMAX3

REF = 2.5 V

±0.08

% of FSR

Full-Scale Error Temperature Drift

±1.0

ppm/°C

Power Supply Sensitivity

AVDD = 5 V ± 5%

±2

LSB

AC ACCURACY

Signal-to-Noise

fIN = 20 kHz

88

89.2

dB4

Spurious Free Dynamic Range

fIN = 20 kHz

96

105

dB

Total Harmonic Distortion

fIN = 20 kHz

–104

–96

dB

Signal-to-(Noise + Distortion)

fIN = 20 kHz

88

89

dB

–60 dB Input, fIN = 20 kHz

30

dB

–3 dB Input Bandwidth

13

MHz

SAMPLING DYNAMICS

Aperture Delay

2

ns

Aperture Jitter

5

ps rms

Transient Response

Full-Scale Step

250

ns

REFERENCE

Internal Reference Voltage

VREF @ 25°C

2.493

2.5

2.507

V

Internal Reference Temperature Drift

–40°C to +85°C

±3

±15

ppm/°C

Output Voltage Hysteresis

–40°C to +85°C

50

ppm

Long-Term Drift

100

ppm/1000 Hours

Line Regulation

AVDD = 5 V ± 5%

±15

ppm/V

Turn-On Settling Time

CREF = 10 µF

5

ms

Temperature Pin

Voltage Output @ 25°C

300

mV

Temperature Sensitivity

1

mV/°C

Output Resistance

4

kΩ

External Reference Voltage Range

2.3

2.5

AVDD – 1.85

V

External Reference Current Drain

1 MSPS Throughput

242

µA

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