MAX5102 查看數據表（PDF） - Maxim Integrated

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MAX5102

+2.7V to +5.5V, Low-Power, Dual, Parallel 8-Bit DAC with Rail-to-Rail Voltage Outputs

Maxim Integrated 

+2.7V to +5.5V, Low-Power, Dual, Parallel

8-Bit DAC with Rail-to-Rail Voltage Outputs

Typical Operating Characteristics (continued)

(VDD = VREF = +3V, RL = 10kΩ, CL = 100pF, code = FF hex, TA = +25°C, unless otherwise noted.)

TOTAL HARMONIC DISTORTION

PLUS NOISE AT DAC OUTPUT

vs. REFERENCE FREQUENCY

0 DAC CODE = FF HEX

-10 VREF = SINE WAVE CENTERED AT 1.5V

1kHz FREQUENCY

-20 500kHz FILTER

-30

-40

REF = 0.5Vp-p

-50

REF = 1Vp-p

-60

-70

REF = 2Vp-p

-80

1

10

100

FREQUENCY (kHz)

WORST-CASE 1LSB DIGITAL STEP CHANGE

(POSITIVE)

DAC CODE FROM 7F TO 80 HEX

REFERENCE INPUT

FREQUENCY RESPONSE

10

0

-10

-20

-30

-40

-50

-60

-70

-80

CODE = FF HEX REF IS IVp-p SIGNAL

VREF = 1.5V

-90

0.01

0.1

1

10

FREQUENCY (MHz)

DIGITAL FEEDTHROUGH GLITCH IMPULSE

(0 TO 1 DIGITAL TRANSITION)

0 TO 1 DIGITAL TRANSITION ON

ALL DATA BITS (WITH WR HIGH)

WORST-CASE 1LSB DIGITAL STEP CHANGE

(NEGATIVE)

DAC CODE FROM 80 TO 7F HEX

1

2

2µs/div

CH1 = WR, 1V/div, CH2 = VOUTA, 50mV/div, AC-COUPLED

DIGITAL FEEDTHROUGH GLITCH IMPULSE

(1 TO 0 DIGITAL TRANSITION)

1 TO 0 DIGITAL TRANSITION ON

ALL DATA BITS (WITH WR HIGH)

1

1

1

2

2

2

1µs/div

CH1 = WR, 1V/div, CH2 = VOUTA, 50mV/div, AC-COUPLED

20ns/div

CH1 = D7, 2V/div, CH2 = VOUTA, 1mV/div

20ns/div

CH1 = D7, 2V/div, CH2 = VOUTA, 1mV/div

POSITIVE SETTLING TIME

DAC CODE FROM 10 TO F0 HEX

1

2

1µs/div

CH1 = WR = 2V/div, CH2 = VOUTA = 2V/div

NEGATIVE SETTLING TIME

DAC CODE FROM F0 TO 10 HEX

1

2

1µs/div

CH1 = WR, 2V/div, CH2 = VOUTA, 2V/div

INTEGRAL AND DIFFERENTIAL

NONLINEARITY vs. DIGITAL CODE

0.5

RL = ∞

0.4

0.3

0.2

DNL

0.1

0

-0.1

-0.2

-0.3

INL

-0.4

-0.5

0 32 64 96 128 160 192 224 256

DIGITAL CODE

_______________________________________________________________________________________ 5

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