MAX5812 Maxim, MAX5812 Datasheet
MAX5812
Manufacturer Part Number
MAX5812
Description
12-Bit Low-Power / 2-Wire / Serial Voltage-Output DAC
Manufacturer
Maxim
Datasheet
1.MAX5812.pdf
(13 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX5812LEUT-T
Manufacturer:
MAXIM
Quantity:
5 321
The MAX5812 is a single, 12-bit voltage-output, digital-to-
analog converter (DAC) with an I
interface that operates at clock rates up to 400kHz. The
device operates from a single 2.7V to 5.5V supply and
draws only 100µA at V
down mode decreases current consumption to less than
1µA. The MAX5812 features three software-selectable
power-down output impedances: 100kΩ, 1kΩ, and high
impedance. Other features include an internal precision
Rail-to-Rail
that powers up the DAC in the 100kΩ power-down mode.
The MAX5812 features a double-buffered I
serial interface that allows multiple devices to share a sin-
gle bus. All logic inputs are CMOS-logic compatible and
buffered with Schmitt triggers, allowing direct interfacing
to optocoupled and transformer-isolated interfaces. The
MAX5812 minimizes digital noise feedthrough by discon-
necting the clock (SCL) signal from the rest of the device
when an address mismatch is detected.
The MAX5812 is specified over the extended temperature
range of -40°C to +85°C and is available in a space-sav-
ing 6-pin SOT23 package. Refer to the MAX5811 for the
10-bit version.
19-2340; Rev 0; 1/02
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.
Digital Gain and Offset Adjustments
Programmable Voltage and Current Sources
Programmable Attenuation
VCO/Varactor Diode Control
Low-Cost Instrumentation
Battery-Operated Equipment
SDA
®
output buffer and a power-on reset circuit
µC
Typical Operating Circuit
SCL
V
DD
________________________________________________________________ Maxim Integrated Products
R
P
DD
General Description
R
P
= 3.6V. A low-power power-
R
R
R
R
S
S
S
S
SCL
SDA
SCL
SDA
2
C™-compatible 2-wire
Applications
MAX5812
MAX5812
12-Bit Low-Power, 2-Wire, Serial
OUT
OUT
V
V
DD
DD
2
C-compatible
V
DD
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 Amplifier
o Three Software-Selectable Power-Down Output
o Read-Back Mode for Bus and Data Checking
o Power-On Reset to Zero
o Miniature 6-Pin SOT23 Package
Selector Guide appears at end of data sheet.
Functional Diagram appears at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
I
MAX5812LEUT
MAX5812MEUT
MAX5812NEUT
MAX5812PEUT
2
C is a trademark of Philips Corporation.
Interface
Optocouplers
Impedances
TOP VIEW
100µA at V
130µA at V
100kΩ, 1kΩ, and High Impedance
PART
Voltage-Output DAC
GND
SDA
V
DD
DD
DD
2
C-Compatible 2-Wire Serial
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
1
2
3
= 3.6V
= 5.5V
Ordering Information
MAX5812
SOT23
Pin Configuration
PIN-
PACKAGE
6 SOT23
6 SOT23
6 SOT23
6 SOT23
6
5
4
OUT
ADD
SCL
Features
MARK
AAYT
AAYV
AAYX
AAYZ
TOP
1
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