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PDF MAX5361 Data sheet ( Hoja de datos )
| Número de pieza | MAX5361 | |
| Descripción | Low-Power 6-Bit DACs | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-1785; Rev 2; 3/11
Low-Cost, Low-Power 6-Bit DACs with
2-Wire Serial Interface in SOT23 Package
General Description
The MAX5360/MAX5361/MAX5362 are low-cost, 6-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
MAX5360 has an internal +2V reference and operates
from a +2.7V to +3.6V supply. The MAX5361 has an
internal +4V reference and operates from a +4.5V to
+5.5V supply. The MAX5362 operates over the full
+2.7V to +5.5V supply range and has an internal refer-
ence equal to 0.9 VDD.
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).
The MAX5360/MAX5361/MAX5362 also include an out-
put 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, the supply
current is reduced to less than 1µA and the output is
pulled down with a 10kΩ resistor to GND.
The MAX5360/MAX5361/MAX5362 are available in
miniature 5-pin SOT23 packages.
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
VDD
μC
PX.0/SDA
PX.1/SCL
GND
VDD
SDA
SCL MAX5362
GND
OUT
Features
o 6-Bit Accuracy in a Tiny 5-Pin SOT23 Package
o Wide +2.7V to +5.5V Supply Range (MAX5362)
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 (MAX5362)
o ≤1LSB (max) INL/DNL
o Low 230µA max Supply Current
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX5360_EUK_ +T* -40°C to +85°C
5 SOT23-5
MAX5361_EUK_ +T* -40°C to +85°C
5 SOT23-5
MAX5362_EUK_ +T* -40°C to +85°C
5 SOT23-5
*See Selector Guide for address options.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide
PART
MAX5360LEUK
MAX5360MEUK
MAX5360NEUK
MAX5360PEUK
MAX5361LEUK
MAX5361MEUK
MAX5361NEUK
MAX5361PEUK
MAX5362LEUK
MAX5362MEUK
MAX5362NEUK
MAX5362PEUK
ADDRESS
0x60
0x62
0x64
0x66
0x60
0x62
0x64
0x66
0x60
0x62
0x64
0x66
REFERENCE
+2.0V
+2.0V
+2.0V
+2.0V
+4.0V
+4.0V
+4.0V
+4.0V
0.9 x VDD
0.9 x VDD
0.9 x VDD
0.9 x VDD
TOP
MARK
ADMM
ADMY
ADNE
ADMO
ADMU
ADNA
ADNG
ADMQ
ADMW
ADNC
ADNI
ADMS
Pin Configuration
TOP VIEW
OUT 1
5 SCL
GND 2
VDD 3
MAX5360
MAX5361
MAX5362
4 SDA
SOT23-5
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1 page  
Low-Cost, Low-Power 6-Bit DACs with
2-Wire Serial Interface in SOT23 Package
Typical Operating Characteristics (continued)
(VDD = 3V (MAX5360), VDD = 5V (MAX5361/MAX5362), TA = +25°C, unless otherwise noted.)
DIFFERENTIAL NONLINEARITY vs. CODE
0.010
0.005
DIFFERENTIAL NONLINEARITY
vs. SUPPLY VOLTAGE
0
-0.005
DIFFERENTIAL NONLINEARITY
vs. TEMPERATURE
0
-0.005
0
-0.005
-0.010
-0.015
-0.010
-0.015
-0.020
-0.010
-0.015
-0.020
-0.020
0
25 50
CODE
-0.025
75 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
-0.025
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
100
TOTAL UNADJUSTED ERROR vs. CODE
0.15
0.10
0.05
0
-0.05
-0.10
-0.15
-0.20
0
25 50
CODE
75
OFFSET ERROR vs. SUPPLY VOLTAGE
0
-0.25
-0.50
2.5
3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
5.5
OFFSET ERROR vs. TEMPERATURE
0
-0.25
-0.50
-40 -20
0 20 40 60 80 100
TEMPERATURE (°C)
FULL-SCALE ERROR vs. TEMPERATURE
0.75
MAX5361
MAX5360/1/2-10
1.2
0.50 0.8
MAX5360
0.25 0.4
MAX5362
00
-0.25 -0.4
FULL-SCALE ERROR vs. TEMPERATURE
0.75
MAX5360/1/2-11
1.2
0.50 0.8
0.25
MAX5360
0.4
MAX5361
00
MAX5362
-0.25 -0.4
-0.50
NO LOAD
-0.75
2.5 3.0 3.5 4.0 4.5
SUPPLY VOLTAGE (V)
5.0
-0.8 -0.50
-0.8
-1.2
5.5
-0.75
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
-1.2
100
SUPPLY CURRENT vs. SUPPLY VOLTAGE
200
180
160 MAX5360
140
120
MAX5362
100
80
60
MAX5361
40
20
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________ 5
5 Page 
Low-Cost, Low-Power 6-Bit DACs with
2-Wire Serial Interface in SOT23 Package
μC
SDA SCL
VDD
SCL VDD
MAX5360L
2V REFERENCE
SDA OUT
OFFSET ADJUSTMENT
SCL VDD
MAX5361M
4V REFERENCE
SDA OUT
THRESHOLD ADJUSTMENT
SCL VDD
MAX5362P
VDD REFERENCE
SDA OUT
GAIN ADJUSTMENT
Figure 7. I2C Typical Application
I2C Compatibility
The MAX5360/MAX5361/MAX5362 are compatible with
existing I2C systems. SCL and SDA are high-imped-
ance inputs; SDA has an open drain that pulls the data
line low during the 9th clock pulse. Figure 7 shows a
typical I2C application. The communication protocol
supports the standard I2C 8-bit communications. The
general call address is ignored, and CBUS formats are
not supported. The MAX5360/MAX5361/MAX5362
address is compatible with the 7-bit I2C addressing
protocol only. No 10-bit formats are supported.
RESTART protocol is supported, but an immediate
STOP condition is necessary to update the DAC.
Applications Information
Digital Inputs and Interface Logic
The serial 2-wire interface has logic levels defined as
VOL = 0.3 x VDD and VOH = 0.7 x VDD. All of the inputs
include Schmitt-trigger buffers to accept slow-transition
interfaces. This means that optocouplers can interface
directly to the MAX5360/MAX5361/MAX5362 without
additional external logic. The digital inputs are compati-
ble with CMOS logic levels and must not be driven with
voltages higher than VDD.
Power-Supply Bypassing and Layout
Careful PC board layout is important for best system
performance. To reduce crosstalk and noise injection,
keep analog and digital signals separate. Ensure that
the ground return from GND to the supply ground is
short and low impedance; a ground plane is recom-
mended. Bypass VDD with a 0.1µF to ground as close
as possible to the device. If the supply is excessively
noisy, connect a 10Ω resistor in series with the supply
and VDD, and add additional capacitance
PROCESS: BiCMOS
Chip Information
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet MAX5361.PDF ] | |
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