MP7652AS datasheet(8/16 Pages) EXAR

部件名	MP7652AS

功能描述	4-Channel Voltage Output 15 MHz, Input Bandwidth, 8-Bit Multiplying DACs with 3-Wire Serial Digital Port and Independent References

PDF	16 Pages

Scroll/Zoom	100%

制造商	EXAR [Exar Corporation]

网页	http://www.exar.com

标志

8 / 16 page

MP7652

Rev. 1.00

DAC Output Voltage

VOUTi = VREFNi + (VREFPi – VREFNi ) (

)

CLK

Table 1. Digital Function Truth Table

Serial In/Serial Out

MSB

LSB

256

0000

(

)

256

1111

000

Table 2. DAC Transfer Function

Analog Output vs. Digital Code

SDI

SDO

(VREFP – VREFN)+ VREFN

()

256

(VREFP – VREFN)+ VREFN

()

256

(VREFP – VREFN)+ VREFN

255

254

VREFN

Preset all DACs to

1/2 (VREFP + VREFN)

Data In

→1

Last bit

Shift data in and out

of shift reg.

Hi-Z

DAC 1 Transparent

→1

Last bit

DAC 1 Latched

of shift reg.

Hi-Z

DAC 2 Transparent

→1

Last bit

DAC 2 Latched

of shift reg.

Hi-Z

DAC 3 Transparent

→1

Last bit

DAC 3 Latched

of shift reg.

Hi-Z

DAC 4 Transparent

→1

Last bit

DAC 4 Latched

of shift reg.

PRESET

Operation

Inputs

Internal

Address

Output

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