MAX1183 查看數據表（PDF） - Maxim Integrated

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MAX1183

Dual 10-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs

Maxim Integrated 

Dual 10-Bit, 40Msps, 3V, Low-Power ADC with

Internal Reference and Parallel Outputs

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 3V, OVDD = 2.5V, 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND, REFOUT connected to REFIN through a

10kΩ resistor, VIN = 2VP-P (differential with respect to COM), CL = 10pF at digital outputs (Note 1), fCLK = 40MHz, TA = TMIN to TMAX,

unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

CLK Pulse Width High

tCH

Figure 3, clock period: 25ns

12.5

±3.8

ns

CLK Pulse Width Low

tCL

Figure 3, clock period: 25ns

12.5

±3.8

ns

Wake-Up Time

tWAKE

Wake up from sleep mode (Note 6)

Wake up from shutdown (Note 6)

0.41

µs

1.5

CHANNEL-TO-CHANNEL MATCHING

Crosstalk

Gain Matching

Phase Matching

fINA or B = 20MHz at -0.5dBFS

fINA or B = 20MHz at -0.5dBFS

fINA or B = 20MHz at -0.5dBFS

-70

dB

0.02 ±0.2

dB

0.25

Degrees

Note 1: Equivalent dynamic performance is obtainable over full OVDD range with reduced CL.

Note 2: Specifications at ≥ +25°C are guaranteed by production test and < +25°C are guaranteed by design and characterization.

Note 3: SNR, SINAD, THD, SFDR, and HD3 are based on an analog input voltage of -0.5dBFS referenced to a 1.024V full-scale

input voltage range.

Note 4: Intermodulation distortion is the total power of the intermodulation products relative to the individual carrier. This number is

6dB better, if referenced to the two-tone envelope.

Note 5: Digital outputs settle to VIH, VIL. Parameter guaranteed by design.

Note 6: With REFIN driven externally, REFP, COM, and REFN are left floating while powered down.

Typical Operating Characteristics

(VDD = 3V, OVDD = 2.5V, VREFIN = 2.048V, differential input at -0.5dBFS, fCLK = 40.0006MHz, CL ≈ 10pF, TA = +25°C, unless

otherwise noted.)

FFT PLOT CHA (DIFFERENTIAL INPUT,

8192-POINT DATA RECORD)

0

-10

CHA

fCLK = 40.0006MHz

fINA = 7.5343MHz

-20

fINB = 6.1475MHz

-30

AINA = -0.498dBFS

-40

-50

-60

HD3

-70

HD2

-80

-90

-100

0

2 4 6 8 10 12 14 16 18 20

ANALOG INPUT FREQUENCY (MHz)

FFT PLOT CHB (DIFFERENTIAL INPUT,

8192-POINT DATA RECORD)

0

-10

CHB

-20

-30

fCLK = 40.0006MHz

fINB = 6.1475MHz

fINA = 7.5343MHz

AINB = -0.534dBFS

-40

-50

-60

HD3

-70

HD2

-80

-90

-100

0

2 4 6 8 10 12 14 16 18 20

ANALOG INPUT FREQUENCY (MHz)

FFT PLOT CHA (DIFFERENTIAL INPUT,

8192-POINT DATA RECORD)

0

-10

fCLK = 40.0006MHz

fINA = 24.9662MHz

CHA

-20 fINB = 19.888MHz

AINA = -0.552dBFS

-30

-40

-50

-60

HD3

-70

HD2

-80

-90

-100

0

2 4 6 8 10 12 14 16 18 20

ANALOG INPUT FREQUENCY (MHz)

_______________________________________________________________________________________ 5

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