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參數資料
| 型號： | MAX5550ETE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/15頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT DUAL 30MA 16-TQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 設置時間： | 30µs |
| 位數： | 10 |
| 數據接口： | I²C，串行，SPI? |
| 轉換器數目： | 2 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 16-TQFN（3x3） |
| 包裝： | 帶卷 (TR) |
| 輸出數目和類型： | 2 電流，單極 |
| 采樣率（每秒）： | 10M |
General Description
The MAX5550 dual, 10-bit, digital-to-analog converter
(DAC) features high-output-current capability. The
MAX5550 sources up to 30mA per DAC, making it ideal
for PIN diode biasing applications. Outputs can also be
paralleled for high-current applications (up to 60mA
typ). Operating from a single +2.7V to +5.25V supply,
the MAX5550 typically consumes 1.5mA per DAC in
normal operation and less than 1A (max) in shutdown
mode. The MAX5550 also features low output leakage
current in shutdown mode (±1A max) that is essential
to ensure that the external PIN diodes are off.
Additional features include an integrated +1.25V
bandgap reference, and a control amplifier to ensure
high accuracy and low-noise performance. A separate
reference input (REFIN) allows for the use of an external
reference source, such as the MAX6126, for improved
gain accuracy. A pin-selectable I2C-/SPI-compatible
serial interface provides optimum flexibility for the
MAX5550. The maximum programmable output current
value is set using software and an adjustment resistor.
The MAX5550 is available in a (3mm x 3mm) 16-pin thin
QFN package, and is specified over the extended
(-40°C to +85°C) temperature range.
Applications
PIN Diode Biasing
RF Attenuator Control
VCO Tuning
Features
Pin-Selectable I2C- or SPI-Compatible Interface
Guaranteed Low Output Leakage Current in
Shutdown (±1A max)
Guaranteed Monotonic over Extended
Temperature Range
Dual Outputs for Balanced Systems
Current Outputs Source Up to 30mA per DAC
Parallelable Outputs for 60mA Applications
Output Stable with RF Filters
Internal or External Reference Capability
Digital Output (DOUT) Available for Daisy
Chaining in SPI Mode
+2.7V to +5.25V Single-Supply Operation
16-Pin (3mm x 3mm) Thin QFN Package
Programmable Output Current Range Set by
Software and Adjustment Resistor
MAX5550
Dual, 10-Bit, Programmable, 30mA
High-Output-Current DAC
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-3871; Rev 2; 5/06
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.
EVALUATION
KIT
AVAILABLE
PART
PIN-PACKAGE
PKG
CODE
TOP
MARK
MAX5550ETE 16 Thin QFN-EP*
T1633F-3
ACZ
SPI is a trademark of Motorola, Inc.
+1.25V
REF
REFIN
BUFFER
10-BIT CURRENT-STEERING
DAC A
P
OUTA
VDD
FSADJA
VDD
OUTB
FSADJB
GND
DOUT/A1
CS/A0
DIN/SDA
SCLK/SCL
SPI/
I2C
16-BIT INPUT REGISTER
DAC REGISTER A
DAC REGISTER B
10-BIT CURRENT-STEERING
DAC B
MAX5550
P
Functional Diagram
Pin Configuration appears at end of data sheet.
*EP = Exposed paddle.
Note: Device is specified over the -40°C to +85°C operating
range.
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