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參數(shù)資料
| 型號(hào)： | MAX5548 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual, 8-Bit, Programmable, 30mA High-Output-Current DAC |
| 中文描述： | 雙路、8位、可編程、可提供30mA高輸出電流的DAC |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大?。?/td> | 296K |
| 代理商： | MAX5548 |
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General Description
The MAX5548 dual, 8-bit, digital-to-analog converter
(DAC) features high-output-current capability. The
MAX5548 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 MAX5548 typically consumes 1.5mA per DAC in
normal operation and less than 1μA (max) in shutdown
mode. The MAX5548 also features low output leakage
current in shutdown mode (±1μA 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 I
2
C*-/SPI-compatible
serial interface provides optimum flexibility for the
MAX5548. The maximum programmable output current
value is set using software and an adjustment resistor.
The MAX5548 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 I
2
C- or SPI-Compatible Interface
Guaranteed Low Output Leakage Current in
Shutdown (±1μA 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
Ordering Information
M
Dual, 8-Bit, Programmable, 30mA
High-Output-Current DAC
________________________________________________________________
Maxim Integrated Products
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.
1
19-3836; Rev 0; 10/05
PART
TEMP
RANGE
PIN-
PKG
PKG
CODE
TOP
MARK
MAX5548ETE
-40°C to
+85°C
16 Thin
QFN
T1633F-3
ACY
*
Purchase of I
2
C components from Maxim Integrated Products,
Inc., or one of its sublicensed Associated Companies, conveys
a license under the Philips I
2
C Patent Rights to use these com-
ponents in an I
2
C system, provided that the system conforms
to the I
2
C Standard Specification as defined by Philips.
SPI is a trademark of Motorola, Inc.
+1.25V
REF
REFIN
BUFFER
8-BIT CURRENT-STEERING
DAC A
OUTA
V
DD
FSADJA
V
DD
OUTB
FSADJB
GND
DOUT/A1
CS
/A0
DIN/SDA
SCLK/SCL
SPI/
I2C
16-BIT INPUT REGISTER
DAC REGISTER A
DAC REGISTER B
8-BIT CURRENT-STEERING
DAC B
MAX5548
P
P
Functional Diagram
Pin Configuration appears at end of data sheet.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5548ETE | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5548ETE#G16 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5548ETE#TG16 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5548ETE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5548ETE+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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