MAX5380 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Low-Cost, Low-Power, 8-Bit DACs with 2-Wire Serial Interface in SOT23

19-1641; Rev 1; 1/01
Low-Cost, Low-Power, 8-Bit DACs with
2-Wire Serial Interface in SOT23
General Description
The MAX5380/MAX5381/MAX5382 are low-cost, 8-bit
digital-to-analog converters (DACs) in miniature 5-pin
SOT23 packages, with a simple 2-wire serial interface
that allows communication with multiple devices. The
MAX5380 has an internal +2V reference and operates
from a +2.7V to +3.6V supply. The MAX5381 has an
internal +4V reference and operates from a +4.5V to
+5.5V supply. The MAX5382 operates over the full
+2.7V to +5.5V supply range and has an internal refer-
ence equal to 0.9 x V_DD.
The fast-mode I²C™-compatible serial interface allows
communication at data rates up to 400kbps, minimizing
board space and reducing interconnect complexity
in many applications. Each device is available with
one of four factory-preset addresses (see Selector
Guide).
These DACs also include an output buffer, a low-power
shutdown mode, and a power-on reset that ensures the
DAC outputs are at zero when power is initially applied.
In shutdown mode, supply current is reduced to less
than 1µA and the output is pulled down to GND with a
10kΩ resistor.
Applications
Automatic Tuning (VCO)
Power-Amplifier Bias Control
Programmable Threshold Levels
Automatic Gain Control
Automatic Offset Adjustment
Typical Operating Circuit
+2.7V TO +5.5V
V_DD
µC
PX.0/SDA
PX.1/SCL
GND
V_DD
SDA
SCL ^MAX5382
OUT
GND
Features
o 8-Bit Accuracy in a Miniature 5-Pin SOT23
o Wide +2.7V to +5.5V Supply Range (MAX5382)
o Low 230µA max Supply Current
o 1µA Shutdown Mode
o Buffered Output Drives Resistive Loads
o Low-Glitch Power-On Reset to Zero DAC Output
o Fast I²C-Compatible Serial Interface
o <±5% Full-Scale Error (MAX5382)
o <±1LSB max INL/DNL
PART
MAX5380_EUK-T
MAX5381_EUK-T
MAX5382_EUK-T
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
5 SOT23
5 SOT23
5 SOT23
Selector Guide
PART
MAX5380LEUK
MAX5380MEUK
MAX5380NEUK
MAX5380PEUK
MAX5381LEUK
MAX5381MEUK
MAX5381NEUK
MAX5381PEUK
MAX5382LEUK
MAX5382MEUK
MAX5382NEUK
MAX5382PEUK
ADDRESS
0x60
0x62
0x64
0x66
0x60
0x62
0x64
0x66
0x60
0x62
0x64
0x66
REFERENCE
(V)
+2.0
+2.0
+2.0
+2.0
+4.0
+4.0
+4.0
+4.0
0.9 x V_DD
0.9 x V_DD
0.9 x V_DD
0.9 x V_DD
TOP
MARK
ADMN
ADMZ
ADFN
ADMP
ADMV
ADNB
ADNH
ADML
ADMX
ADND
ADNJ
ADNT
Pin Configuration
TOP VIEW
OUT 1
GND 2
V_DD 3
MAX5380
MAX5381
MAX5382
5 SCL
4 SDA
I²C is a trademark of Philips Corp.
SOT23-5
________________________________________________________________ Maxim Integrated Products 1
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.