MAX1302BEUG+ datasheet(3/31 Pages) MAXIM

Part #	MAX1302BEUG+

Description	8-Channel, ±VREF Multirange Inputs, Serial 16-Bit ADC

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Manufacturer	MAXIM [Maxim Integrated Products]

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8-Channel, ±VREF Multirange Inputs,

Serial 16-Bit ADC

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(VAVDD1 = VAVDD2 = VDVDD = VDVDDO = 5V, VAGND1 = VDGND = VDGNDO = VAGND2 = VAGND3 = 0V, fCLK = 3.5MHz (50% duty

cycle), external clock mode, VREF = 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input

range (±VREF), CDOUT = 50pF, CSSTRB = 50pF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Differential inputs, FSR = 2 x VREF

90

Single-ended inputs, FSR = VREF

88

Single-ended inputs, FSR = VREF/2

85

Signal-to-Noise Ratio

SNR

Single-ended inputs, FSR = VREF/4

82

dB

Total Harmonic Distortion

(Up to the 5th Harmonic)

THD

-98

dB

Spurious-Free Dynamic Range

SFDR

90

99

dB

Aperture Delay

tAD

Figure 21

15

ns

Aperture Jitter

tAJ

Figure 21

100

ps

Channel-to-Channel Isolation

105

dB

CONVERSION RATE

External clock mode, Figure 2

114

External acquisition mode, Figure 3

84

Byte-Wide Throughput Rate

fSAMPLE

Internal clock mode, Figure 4

106

ksps

ANALOG INPUTS (CH0–CH7 MAX1302, AGND1)

Small-Signal Bandwidth

All input ranges, VIN = 100mVP-P (Note 2)

1.5

MHz

Full-Power Bandwidth

All input ranges, VIN = 4VP-P (Note 2)

700

kHz

R[2:1] = 001

-VREF/4

+VREF/4

R[2:1] = 010

-VREF/2

0

R[2:1] = 011

0

+VREF/2

R[2:1] = 100

-VREF/2

+VREF/2

R[2:1] = 101

-VREF

0

R[2:1] = 110

0

+VREF

Input Voltage Range (Table 6)

VCH_

R[2:1] = 111

-VREF

+VREF

V

True-Differential Analog Common-

Mode Voltage Range

VCMDR

DIF/SGL = 1 (Note 4)

-4.75

+5.50

V

Common-Mode Rejection Ratio

CMRR

DIF/SGL = 1, input voltage range = ±VREF/4

75

dB

Input Current

ICH_

-VREF < VCH_ < +VREF

-1500

+650

µA

Input Capacitance

CCH_

5pF

Input Resistance

RCH_

6k

Ω

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