MAX19712ETN datasheet(5/36 Pages) MAXIM

Part #	MAX19712ETN

Description	10-Bit, 22Msps, Full-Duplex Analog Front-End

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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5 / 36 page

10-Bit, 22Msps, Full-Duplex

Analog Front-End

_______________________________________________________________________________________

5

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL

≈ 10pF on all digital outputs, fCLK = 22MHz (50% duty cycle), Rx ADC input

amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output,

CREFP = CREFN = CCOM = 0.33µF, CL < 5pF on all aux-DAC outputs, TA = TMIN to TMAX, unless otherwise noted. Typical values are

at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Tx DAC DC ACCURACY

Resolution

N

10

Bits

Integral Nonlinearity

INL

±0.3

LSB

Differential Nonlinearity

DNL

Guaranteed monotonic (Note 6)

-0.75

±0.2

+0.75

LSB

Residual DC Offset

VOS

-4

±0.03

+4

mV

Full-Scale Gain Error

-40

±0.8

+40

mV

Tx DAC DYNAMIC PERFORMANCE

DAC Conversion Rate

fCLK

(Note 2)

22

MHz

In-Band Noise Density

ND

fOUT = 2.2MHz

-129

dBFS/Hz

Third-Order Intermodulation

Distortion

IM3

fOUT1 = 2MHz, fOUT2 = 2.2MHz

-70

dBc

Glitch Impulse

10

pV•s

Spurious-Free Dynamic Range to

Nyquist

SFDR

fOUT = 2.2MHz

61

72.9

dBc

Total Harmonic Distortion to

Nyquist

THD

fOUT = 2.2MHz

-71

-60.5

dBc

Signal-to-Noise Ratio to Nyquist

SNR

fOUT = 2.2MHz

59.3

dB

Tx DAC INTERCHANNEL CHARACTERISTICS

I-to-Q Output Isolation

fOUTX,Y = 2MHz, fOUTY,X = 2.2MHz

88

dB

Gain Mismatch Between I and Q

Channels

Measured at DC

-0.4

±0.01

+0.4

dB

Phase Mismatch Between I and Q

Channels

fOUT = 2.2MHz

±0.1

Degrees

Differential Output Impedance

800

Ω

Tx DAC ANALOG OUTPUT

Full-Scale Output Voltage

VFS

±400

mV

Bits CM1 = 0, CM0 = 0 (default)

1.29

1.36

1.42

Bits CM1 = 0, CM0 = 1

1.14

1.2

1.27

Bits CM1 = 1, CM0 = 0

0.96

1.05

1.15

Output Common-Mode Voltage

VCOMD

Bits CM1 = 1, CM0 = 1

0.78

0.89

1.03

V

Rx ADC–Tx DAC INTERCHANNEL CHARACTERISTICS

Receive Transmit Isolation

ADC fINI = fINQ = 5.5MHz, DAC fOUTI =

fOUTQ = 2.2MHz

85

dB

AUXILIARY ADCs (ADC1, ADC2)

Resolution

N

10

Bits

AD1 = 0 (default)

2.048

Full-Scale Reference

VREF

AD1 = 1

VDD

V

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