MX7837 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MX7837

Complete, Dual, 12-Bit Multiplying DACs

Maxim Integrated 

Complete, Dual, 12-Bit

Multiplying DACs

____________________________Typical Operating Characteristics (continued)

(TA = +25°C, VDD = 15V, VSS = -15V, RL = 2kΩ, CL = 100pF, unless otherwise noted.)

SMALL-SIGNAL PULSE RESPONSE

LARGE-SIGNAL PULSE RESPONSE

AGNDA

A

AGNDA

A

A = VOUTA, 50mV/div

TIMEBASE = 2µs/div

VREFA = ±100mV SQUARE WAVE

A = VOUTA, 5V/div

TIMEBASE = 2µs/div

VREFA = ±10V SQUARE WAVE

______________________________________________________________Pin Description

PIN

MX7837 MX7847

1

–

–

1

2

–

–

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

–

–

12

13

13

14

–

15

16

17-20

–

14-24

–

–

–

21-24

–

NAME

CS

CSA

RFBA

CSB

VREFA

VOUTA

AGNDA

VDD

VSS

AGNDB

VOUTB

VREFB

DGND

RFBB

DB11

WR

LDAC

DB10-DB0

A1

A0

DB7-DB4

DB3/DB11-

DB0/DB8

FUNCTION

Chip Select – active-low logic input

Chip-Select Input for DAC A – active-low logic input

Amplifier Feedback Resistor for DAC A

Chip-Select Input for DAC B – active-low logic input

Reference Input Voltage for DAC A

Analog Output Voltage from DAC A

Analog Ground for DAC A

Positive Power Supply

Negative Power Supply

Analog Ground for DAC B

Analog Output Voltage from DAC B

Reference Input Voltage for DAC B

Digital Ground

Amplifier Feedback Resistor for DAC B

Data Bit 11 (MSB)

Write Input – active-low logic input (MX7837); positive-edge-triggered input used with

CSA and CSB (MX7847)

Asynchronous Load – DAC input, active-low

Data Bit 10 to Data Bit 0 (LSB)

Address Input – most significant address input for input latches

Address Input – least significant address input for input latches

Data Bit 7 to Data Bit 4

Data Bit 3 to Data Bit 0 (LSB), or Data Bit 11 (MSB) to Data Bit 8

_______________________________________________________________________________________ 5

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