Datasheet > AD9675_17

AD9675_17

更新时间： 2022-02-26 12:08:50

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
61页	842K
描述
Octal Ultrasound AFE with JESD204B

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AD9675_17 数据手册

Data Sheet

AD9675

Parameter¹

Test Conditions/Comments

Min

Typ

Max

Unit

LSB

Correlated Noise Ratio

Output Offset

No signal, correlated/uncorrelated

−30

−125

+125

Signal-to-Noise Ratio (SNR)

f_IN= 5 MHz at −12 dBFS, V_GAIN= −1.6 V

f_IN= 5 MHz at −1 dBFS, V_GAIN= 1.6 V

f_IN= 3.5 MHz at −0.5 dBFS, V_GAIN= 0 V,

1 kHz offset

−130

dBFS

dBc/√Hz

Close-In SNR

Second Harmonic

f_IN= 5 MHz at −12 dBFS, V_GAIN= −1.6 V

f_IN= 5 MHz at −1 dBFS, V_GAIN= 1.6 V

f_IN= 5 MHz at −12 dBFS, V_GAIN= −1.6 V

f_IN= 5 MHz at −1 dBFS, V_GAIN= 1.6 V

f_RF1= 5.015 MHz, f_RF2= 5.020 MHz, A_RF1

−70

−62

−61

−55

−54

dBc

Third Harmonic

Two-Tone Intermodulation

Distortion (IMD3)

−1 dBFS, A_RF2= −21 dBFS, V_GAIN= 1.6 V, IMD3

relative to A_RF2

Channel-to-Channel Crosstalk

f_IN1= 5.0 MHz at −1 dBFS

Overrange condition²

T_A= 25°C

−60

−55

GAIN ACCURACY

Gain Law Conformance Error

−1.6 < V_GAIN< −1.28 V

−1.28 V < V_GAIN< +1.28 V

1.28 V < V_GAIN< 1.6 V

V_GAIN= 0 V, normalized for ideal AAF loss

−1.28 V < V_GAIN< +1.28 V, 1 σ

0.4

−1.3

−0.9

+1.3

+0.9

−0.5

Channel-to-Channel Matching

PGA Gain

0.1

21/24/27/30

GAIN CONTROL INTERFACE

Control Range

Control Common Mode

Input Impedance

Gain Range

Differential

GAIN+, GAIN−

−1.6

0.7

+1.6

0.9

0.8

3.5

750

MΩ

dB/V

Gain Sensitivity

Analog

Digital step size

Analog 45 dB change

Response Time

CW DOPPLER MODE

LO Frequency

f_LO= f_MLO/M

MHz

Phase Resolution

Per channel, 4LO mode

Per channel, 8LO mode, 16LO mode

CWI+, CWI−, CWQ+, CWQ−

Per CWI+, CWI−, CWQ+, CWQ−, each channel

enabled (2 f_LOand baseband signal)

22.5

AVDD2 ÷ 2

2.2

Degrees

Output DC Bias (Single-Ended)

Output AC Current Range

2.5

Transconductance (Differential)

Demodulated I_OUT/V_IN, per CWI+, CWI−,

CWQ+, CWQ−

LNA gain = 15.6 dB

LNA gain = 17.9 dB

LNA gain = 21.6 dB

R_S= 0 Ω, R_FB= ∞

LNA gain = 15.6 dB

LNA gain = 17.9 dB

LNA gain = 21.6 dB

R_S= 50 Ω, R_FB= ∞

LNA gain = 15.6 dB

LNA gain = 17.9 dB

LNA gain = 21.6 dB

R_S= 0 Ω, R_FB= ∞

3.3

4.3

6.6

mA/V

Input Referred Noise Voltage

Noise Figure

1.6

1.3

1.0

nV/√Hz

5.7

4.5

3.4

Input Referred Dynamic Range

LNA gain = 15.6 dB

LNA gain = 17.9 dB

LNA gain = 21.6 dB

164

162

160

dBFS/√Hz

Rev. A | Page 5 of 60

1...3 4 567 8 9...61

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