參數(shù)資料
型號: MAX5533
廠商: Maxim Integrated Products, Inc.
英文描述: Dual, Ultra-Low-Power, 12-Bit, Voltage-Output DACs
中文描述: 雙路、超低功耗、12位、電壓輸出DAC
文件頁數(shù): 18/24頁
文件大小: 1554K
代理商: MAX5533
M
Dual, Ultra-Low-Power,
12-Bit, Voltage-Output DACs
18
______________________________________________________________________________________
Applications Information
1-Cell and 2-Cell Circuits
See
Figure
3 for an illustration of how to power the
MAX5532–MAX5535 with either one lithium-ion battery
or two alkaline batteries. The low current consumption
of the devices make the MAX5532–MAX5535 ideal for
battery-powered applications.
Programmable Current Source
See the circuit in
Figure
4 for an illustration of how to
configure the MAX5534/MAX5535 as a programmable
current source for driving an LED. The MAX5534/
MAX5535 drive a standard NPN transistor to program
the current source. The current source (I
LED
) is defined
in the equation in
Figure
4.
REFIN
1/2 MAX5534
MAX6006
(1
μ
A, 1.25V
SHUNT
REFERENCE)
GND
+1.25V
0.01
μ
F
536k
V
DD
DAC
VOUT
N
DAC
IS THE NUMERIC VALUE
OF THE DAC INPUT CODE.
V
OUT
(0.30mV / LSB)
1.8V
V
ALKALINE
3.3V
2.2V
V
LITHIUM
3.3V
OUT
= V
REFIN
×
N
DAC
V
0.1
μ
F
Figure
3. Portable Application Using Two Alkaline Cells or One Lithium Coin Cell
R
2N3904
N
DAC
IS THE NUMERIC VALUE
OF THE DAC INPUT CODE.
I
LED
REFIN
LED
1/2 MAX5534
V+
DAC
VOUT
LED
= V
REFIN
×
N
DAC
I
×
R
FB
Figure
4. Programmable Current Source Driving an LED
R
FB
N
DAC
IS THE NUMERIC VALUE
OF THE DAC INPUT CODE.
I
T
REFIN
1/2 MAX5534
DAC
VOUT
V
OUT
= V
BIAS
+ (I
T
×
R)
V
OUT
V
BIAS
TRANSDUCER
BIAS
= V
REFIN
×
N
DAC
V
Figure
5. Transimpedance Configuration for a Voltage-Biased
Current-Output Transducer
相關(guān)PDF資料
PDF描述
MAX5533EUA Dual, Ultra-Low-Power, 12-Bit, Voltage-Output DACs
MAX5534ETC Dual, Ultra-Low-Power, 12-Bit, Voltage-Output DACs
MAX5535ETC Dual, Ultra-Low-Power, 12-Bit, Voltage-Output DACs
MAX5580BETP Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs
MAX5580BEUP Buffered, Fast-Settling, Quad, 12-/10-/8-Bit, Voltage-Output DACs
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