Rainbow-electronics MAX1205 Manual de usuario descargar pdf (Pagina 6)

MAX1205

+5V Single-Supply, 1Msps, 14-Bit

Self-Calibrating ADC

6 _______________________________________________________________________________________

-105

-120

-135

-90

-75

-60

-45

-30

-15

0 200100 300 400 500 600

TYPICAL FFT

= 504.5kHz, 2048 VALUE RECORD)

MAX1205-09

FREQUENCY (kHz)

AMPLITUDE (dBFS)

Typical Operating Characteristics (continued)

(AV

= +5V ±5%, DV

= DRV

= +3.3V, V

RFPS

= +4.096V, V

RFNS

= AGND, V

= +2.048V, differential input, f

CLK

= 2.048MHz,

calibrated, T

= +25°C, unless otherwise noted.)

1 100010010

EFFECTIVE NUMBER OF BITS

vs. INPUT FREQUENCY

MAX1205-10

INPUT FREQUENCY (kHz)

ENOB (Bits)

10.0

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

= -0.5dBFS

= -6dBFS

= -20dBFS

Pin Description

Digital Input to Start Calibration.

ST_CAL = 0: Normal conversion mode.

ST_CAL = 1: Start self-calibration.

ST_CAL1

FUNCTIONNAME

Analog GroundAGND2, 4, 5

Data Out-of-Range BitDOR7

Analog Power Supply, +5V ±5%AV

3, 6

Bit 12D129

Bit 10D1011

Bit 11D1110

Bit 13 (MSB)D138

Bit 8D813

Bit 6D615

Bit 7D714

Digital GroundDGND17, 28, 29

Bit 4D419

Bit 5D518

Digital Power Supply for the Output Drivers, +3V to +5.25V, DRV

≤ DV

DRV

Bit 9D912

Bit 2D221

Bit 3D320

Bit 0 (LSB)D023

Bit 1D122

Test Pin 3. Leave unconnected.

TEST324

1 2 3 4 5 6 7 8 9 10 11 12

Self-Calibrating ADC 1

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Rainbow-electronics MAX1205 Manual de usuario Pagina 6

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