AM652X datasheet(130/277 Pages) TI1

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Specifications

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Product Folder Links: AM6548 AM6528 AM6546 AM6526 AM6527

130

AM6548, AM6528, AM6546

AM6526, AM6527

SPRSP08I – NOVEMBER 2017 – REVISED DECEMBER 2019

www.ti.com

Table 5-8. Analog ADC DC Electrical Characteristics (continued)

over recommended operating conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SNR(PLUS)

Signal-to-Noise Plus Distortion

Input Signal: 200 kHz sine wave

at -0.5 dB Full Scale,

MCU_ADC0/1_REFP =

VDDA_MCU_ADC0/1,

MCU_ADC0/1_REFN = VSS

Rstatic(MCU_ADC0/1_REFP,

MCU_ADC0/1_REFN)

Static Input Impedance of

MCU_ADC0/1_REFP relative to

MCU_ADC0/1_REFN

2.2

kΩ

Rdynamic(MCU_ADC0/1_REFP,

MCU_ADC0/1_REFN)

Dynamic Input Impedance of

MCU_ADC0/1_REFP relative to

MCU_ADC0/1_REFN

[1/((65.97 × 10-12) ×

fSMPL_CLK)]

(1)

RMCU_ADC0/1_AIN[0:7]

Input Impedance of

MCU_ADC0/1_AIN[7:0]

f = input frequency

[1/((65.97 × 10-12) ×

fSMPL_CLK)]

IIN

Input Leakage

MCU_ADC0/1_AIN[7:0] = VSS

-126

μA

MCU_ADC0/1_AIN[7:0] =

VDDA_MCU_ADC0/1

572

μA

Sampling Dynamics

FSMPL_CLK

SMPL_CLK Frequency

MHz

Conversion Time

ADC0/1 SMPL_CLK

Cycles

tACQ

Acquisition time

257

ADC0/1 SMPL_CLK

Cycles

Sampling Rate

ADC0/1 SMPL_CLK = 60 MHz

MSPS

CCISO

Channel to Channel Isolation

100

(1) The MCU_ADC0/1_REFP and MCU_ADC0/1_REFN source impedance should be

≤ to 1/10 × (Rdynamic(MCU_ADC0/1_REFP, MCU_ADC0/1_REFN)). For example, for a 60 MHz clock, this source

should be

≤ to 25 Ω on each reference input.

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