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參數(shù)資料
| 型號(hào)： | MAX5223EKA-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Low - Power, Dual, 8 - Bit, Voltage Output Serial DAC in 8 - Pin SOT23 |
| 中文描述： | SERIAL INPUT LOADING, 50 us SETTLING TIME, 8-BIT DAC, PDSO8 |
| 封裝： | 3 X 3 MM, SOT-23, 8 PIN |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大小： | 225K |
| 代理商： | MAX5223EKA-T |
General Desc ription
The MAX5223 contains two 8-bit, buffered, voltage out-
put digital-to-analog converters (DAC A and DAC B) in a
small 8-pin SOT23 package. DAC outputs can source
and sink 1mA to within 100mV of ground and V
DD
. The
MAX5223 operates with a single +2.7V to +5.5V supply.
The device uses a 3-wire serial interface, which oper-
ates at clock rates up to 25MHz and is compatible with
SPI, QSPI, and MICROWIRE interface standards.
The serial input shift register is 16 bits long and con-
sists of 8 bits of DAC input data and 8 bits for DAC
selection and shutdown control. DAC registers can be
loaded independently or in parallel at the positive edge
of
CS
.
The MAX5223’s ultra-low power consumption and tiny
8-pin SOT23 package make it ideal for portable and
battery-powered applications. Supply current is a low
100μA and drops below 1μA in shutdown mode. In
addition, the reference input is disconnected from the
REF pin during shutdown, which reduces the system’s
total power consumption.
________________________Applic ations
Digital Gain and Offset Adjustment
Programmable Current Source
Programmable Voltage Source
Power Amp Bias Control
VCO Tuning
Features
o
Tiny 8-Pin SOT23 Package (3mm
3mm)
o
Low Power Consumption
100μA Operating Current
<1μA Shutdown Current
o
+2.7V to +5.5V Single-Supply Operation
o
Dual Buffered Voltage Output
o
Programmable Shutdown Mode
o
25MHz, 3-Wire Serial Interface
o
SPI, QSPI, and MICROWIRE-Compatible
M
Low-Power, Dual, 8-Bit, Voltage Output
S erial DAC in 8-Pin S OT 23
________________________________________________________________
Maxim Integrated Products
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
DAC
LATCH
A
DAC A
DAC
LATCH
B
DAC B
SCLK
OUTA
5
OUTB
6
DIN
REF
V
DD
1
C
D
MAX5223
8
3
1
7
4
0.1
μ
F
(OPTIONAL)
V
OUTA
V
OUTB
GND
2
0.22
μ
F
CS
Func tional Diagram
OUTB
V
DD
OUTA
SCLK
1
2
8
7
DIN
REF
GND
CS
MAX5223
TOP VIEW
3
4
6
5
SOT23-8
Pin Configuration
19-1895; Rev 0; 1/01
PART
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 SOT23
MAX5223EKA-T
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Ordering Information
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