MAX5841LEUB MAXIM [Maxim Integrated Products], MAX5841LEUB Datasheet

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MAX5841LEUB

Manufacturer Part Number
MAX5841LEUB
Description
Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet

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The MAX5841 is a quad, 10-bit voltage output, digital-
to-analog converter (DAC) with an I
2-wire interface that operates at clock rates up to
400kHz. The device operates from a single 2.7V to 5.5V
supply and draws only 230µA at V
down mode decreases current consumption to less
than 1µA. The MAX5841 features three software-selec-
table power-down output impedances: 100kΩ, 1kΩ,
and high impedance. Other features include internal
precision Rail-to-Rail
reset (POR) circuit that powers up the DAC in the
100kΩ power-down mode.
The MAX5841 features a double-buffered I
ble serial interface that allows multiple devices to share
a single bus. All logic inputs are CMOS-logic compati-
ble and buffered with Schmitt triggers, allowing direct
interfacing to optocoupled and transformer-isolated
interfaces. The MAX5841 minimizes digital noise
feedthrough by disconnecting the clock (SCL) signal
from the rest of the device when an address mismatch
is detected.
The MAX5841 is specified over the extended tempera-
ture range of -40°C to +85°C and is available in a
miniature 10-pin µMAX package. Refer to the MAX5842
data sheet for the 12-bit version.
19-1777; Rev 0; 1/02
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
I
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
2
C is a trademark of Philips Corp.
Digital Gain and Offset Adjustments
Programmable Voltage and Current Sources
Programmable Attenuation
VCO/Varactor Diode Control
Low-Cost Instrumentation
Battery-Powered Equipment
ATE
TOP VIEW
ADD
GND
SDA
SCL
V
DD
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
®
Quad, 10-Bit, Low-Power, 2-Wire, Serial
General Description
output buffers and a power-on
MAX5841
µMAX
Pin Configuration
10
DD
9
8
7
6
Applications
OUTD
OUTC
OUTB
OUTA
REF
2
= 3.6V. A power-
C™-compatible,
2
C-compati-
o Ultra-Low Supply Current
o 300nA Low-Power Power-Down Mode
o Single 2.7V to 5.5V Supply Voltage
o Fast 400kHz I
o Schmitt-Trigger Inputs for Direct Interfacing to
o Rail-to-Rail Output Buffer Amplifiers
o Three Software-Selectable Power-Down Output
o Read-Back Mode for Bus and Data Checking
o Power-On Reset to Zero
o 10-Pin µMAX Package
MAX5841LEUB
MAX5841MEUB -40
Interface
Optocouplers
Impedances
230µA at V
280µA at V
100kΩ, 1kΩ, and High Impedance
PART
SDA
Voltage-Output DAC
µC
SCL
V
DD
Typical Operating Circuit
DD
DD
2
-40
C-Compatible 2-Wire Serial
= 3.6V
= 5.5V
o
o
RANGE
C to +85
C to +85
TEMP
R
R
R
R
Ordering Information
S
S
S
S
R
P
REF
o
o
C
C
R
P
SCL
SDA
REF
SCL
SDA
REF
PIN-
PACKAGE
10 µMAX
10 µMAX
MAX5841
MAX5841
OUTB
OUTC
OUTD
OUTB
OUTC
OUTD
OUTA
OUTA
V
V
DD
DD
Features
V
DD
ADDRESS
0111 10X
1011 10X
1

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MAX5841LEUB Summary of contents

Page 1

... Optocouplers o Rail-to-Rail Output Buffer Amplifiers 2 C-compati- o Three Software-Selectable Power-Down Output Impedances 100kΩ, 1kΩ, and High Impedance o Read-Back Mode for Bus and Data Checking o Power-On Reset to Zero o 10-Pin µMAX Package PART Applications MAX5841LEUB MAX5841MEUB -40 SDA 10 OUTD 9 OUTC 8 OUTB 7 OUTA 6 REF Features = 3 ...

Page 2

Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC ABSOLUTE MAXIMUM RATINGS V , SCL, SDA to GND ............................................-0.3V to +6V DD OUT_, REF, ADD to GND..............................-0. Maximum Current into Any Pin............................................50mA Continuous Power Dissipation (T = +70°C) A 10-Pin ...

Page 3

Quad, 10-Bit, Low-Power, 2-Wire, Serial ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, GND = REF +5V 25°C PARAMETER SYMBOL Input Hysteresis Input Leakage Current Input Capacitance DIGITAL OUTPUT (SDA) ...

Page 4

Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, GND = REF +5V 25°C PARAMETER SYMBOL Bus Capacitance Maximum Duration of Suppressed ...

Page 5

Quad, 10-Bit, Low-Power, 2-Wire, Serial (V = +5V 5kΩ +25°C ZERO-CODE ERROR vs. SUPPLY VOLTAGE LOAD 0 2.7 3.4 4.1 4.8 SUPPLY VOLTAGE (V) GAIN ERROR vs. ...

Page 6

Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC (V = +5V 5kΩ +25°C POWER-DOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE 500 Z = HIGH IMPEDANCE OUT NO LOAD 400 300 T = -40° ...

Page 7

Quad, 10-Bit, Low-Power, 2-Wire, Serial (V = +5V 5kΩ +25°C SETTLING TIME (NEGATIVE) OUT_ C LOAD CODE = 300 hex TO 100 hex 2µs/div Note 6: The ability to drive loads less than ...

Page 8

Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC PIN NAME 1 ADD Address Select. A logic high sets the address LSB logic low sets the address LSB to zero. 2 SCL Serial Clock Input 3 V Power Supply ...

Page 9

Quad, 10-Bit, Low-Power, 2-Wire, Serial Table 1. Power-Down Command Bits POWER-DOWN COMMAND BITS MODE/FUNCTION PD1 PD0 Power-up device. DAC output 0 0 restored to previous value. Power-down mode 0. Power down 0 1 device with output floating. Power-down mode 1. ...

Page 10

Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC SCL SDA Figure 2. START and STOP Conditions SCL SDA STOP START LEGAL STOP CONDITION SCL SDA START ILLEGAL STOP ILLEGAL EARLY STOP CONDITION Figure 3. Early STOP Conditions read ...

Page 11

Quad, 10-Bit, Low-Power, 2-Wire, Serial MSB MSB MSB MSB Figure 6. Example Write Command Sequences to the selected power-down mode based on the states ...

Page 12

Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC Table 3. Command Byte Definitions SERIAL DATA INPUT DAC DATA DAC DATA DAC DATA DAC 0 ...

Page 13

Quad, 10-Bit, Low-Power, 2-Wire, Serial Table 3. Command Byte Definitions (continued) SERIAL DATA INPUT ...

Page 14

Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC INPUT REGISTER A INPUT REGISTER B INPUT REGISTER C INPUT REGISTER D SERIAL INTERFACE SDA ADD SCL 14 ______________________________________________________________________________________ REF 10-BIT MUX AND DAC DAC REGISTER A 10-BIT MUX AND DAC DAC REGISTER ...

Page 15

Quad, 10-Bit, Low-Power, 2-Wire, Serial Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without ...

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