AD7765BRUZ Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

AD7765BRUZ

24-Bit, 156 kSPS, 112 dB Sigma-Delta ADC with On-Chip Buffers and Serial Interface

Analog Devices 

Data Sheet

AD7765

Parameter

DC ACCURACY

Resolution

Integral Nonlinearity

Zero Error

Gain Error

Zero Error Drift

Gain Error Drift

DIGITAL FILTER CHARACTERISTICS

Pass-Band Ripple

Pass Band3

Test Conditions/Comments

Guaranteed monotonic to 24 bits

Normal power mode

Low power mode

Normal power mode

Including on-chip amplifier

Low power mode

Including on-chip amplifier

Does not include on-chip amplifier

Does not include on-chip amplifier

Normal and low power modes

−1 dB frequency

−3 dB Bandwidth3

Stop Band3

Stop-Band Attenuation

Group Delay

ANALOG INPUT

Differential Input Voltage

Input Capacitance

REFERENCE INPUT/OUTPUT

VREF+ Input Voltage

VREF+ Input DC Leakage Current

VREF+ Input Capacitance

DIGITAL INPUT/OUTPUT

MCLK Input Amplitude

Input Capacitance

Input Leakage Current

VINH

Beginning of stop band

Decimate 128×

Decimate 256×

See Table 8 and Table 9

Modulator input pins: VIN+ − VIN−, VREF+ = 4.096 V

At on-chip differential amplifier inputs

At modulator inputs

AVDD3 = 5 V ± 5%

VINL

VOH 4

VOL

ON-CHIP DIFFERENTIAL AMPLIFIER

Input Impedance

Bandwidth for 0.1 dB Flatness

Common-Mode Input Voltage

Common-Mode Output Voltage

POWER REQUIREMENTS

AVDD1 (Modulator Supply)

AVDD2 (General Supply)

AVDD3 (Differential Amplifier

Supply)

AVDD4 (Reference Buffer Supply)

DVDD

Common-mode voltage range at amplifier input

pins VINA− and VINA+

On-chip differential amplifier pins: VOUTA+ and

VOUTA−

5 V supply required for 4.096 V reference

5 V supply required for 4.096 V reference

Min

2.25

0.8 ×

DVDD

2.2

0.8

2.375

4.75

3.15

3.15

2.375

Typ

Max

Unit

0.0036

0.0014

0.006

0.04

0.002

0.018

0.04

0.00006

0.00005

24

0.03

0.024

Bits

%

%

%

%

%

%

%

%FS/°C

%FS/°C

0.1

−120

−115

dB

ODR ×

kHz

0.4016

ODR ×

kHz

0.4096

ODR × 0.5 kHz

dB

dB

5

29

5

7.3

>1

2.048

±3.2768

V p-p

pF

pF

4.096

V

±1

µA

pF

5.25

V

pF

±1

μA/pin

V

0.2 × DVDD V

V

0.1

V

MΩ

125

kHz

+2.2

V

V

2.5

2.625

V

5

5.25

V

5

5.25

V

5

5.25

V

2.5

2.625

V

Rev. C | Page 5 of 33

Share Link: