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參數(shù)資料
| 型號： | MAX1342BETX+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/39頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC/DAC 12BIT W/FIFO 36WQFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 50 |
| 類型： | ADC，DAC |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 225k |
| 數(shù)據(jù)接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 電壓電源： | 模擬和數(shù)字 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 36-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 36-TQFN 裸露焊盤（6x6） |
| 包裝： | 管件 |
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General Description
The MAX1340/MAX1342/MAX1346/MAX1348 integrate a
multichannel, 12-bit, analog-to-digital converter (ADC)
and a quad, 12-bit, digital-to-analog converter (DAC) in a
single IC. The devices also include a temperature sensor
and configurable general-purpose I/O ports (GPIOs) with
a 25MHz SPI-/QSPI-/MICROWIRE-compatible seri-
al interface. The ADC is available in a 4 or an 8 input-
channel version. The four DAC outputs settle within 2.0s,
and the ADC has a 225ksps conversion rate.
All devices include an internal reference (4.096V) provid-
ing a well-regulated, low-noise reference for both the
ADC and DAC. Programmable reference modes for the
ADC and DAC allow the use of an internal reference, an
external reference, or a combination of both. Features
such as an internal ±1°C accurate temperature sensor,
FIFO, scan modes, programmable internal or external
clock modes, data averaging, and AutoShutdown allow
users to minimize both power consumption and proces-
sor requirements. The low glitch energy (4nVs) and low
digital feedthrough (0.5nVs) of the integrated quad
DACs make these devices ideal for digital control of fast-
response closed-loop systems.
The devices are guaranteed to operate with a supply
voltage from +4.75V to +5.25V The devices consume
2.5mA at 225ksps throughput, only 22A at 1ksps
throughput, and under 0.2A in the shutdown mode. The
MAX1342/MAX1348 offer four GPIOs that can be config-
ured as inputs or outputs.
The MAX1340/MAX1342/MAX1346/MAX1348 are avail-
able in 36-pin thin QFN packages. All devices are speci-
fied over the -40°C to +85°C temperature range.
Applications
Closed-Loop Controls for Optical Components
and Base Stations
System Supervision and Control
Data-Acquisition Systems
Features
12-Bit, 225ksps ADC
Analog Multiplexer with True-Differential
Track/Hold (T/H)
8 Single-Ended Channels or 4 Differential
Channels (Unipolar or Bipolar)
(MAX1340/MAX1342)
4 Single-Ended Channels or 2 Differential
Channels (Unipolar or Bipolar)
(MAX1346/MAX1348)
Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB DNL
12-Bit, Quad, 2s Settling DAC
Ultra-Low Glitch Energy (4nVs)
Power-Up Options from Zero Scale or Full Scale
Excellent Accuracy: ±0.5 LSB INL
Internal Reference or External Single-Ended/
Differential Reference
Internal Reference Voltage (4.096V)
Internal ±1°C Accurate Temperature Sensor
On-Chip FIFO Capable of Storing 16 ADC
Conversion Results and One Temperature Result
On-Chip Channel-Scan Mode and Internal
Data-Averaging Features
Analog Single-Supply Operation
+4.75V to +5.25V
Digital Supply: 2.7V to AVDD
25MHz, SPI/QSPI/MICROWIRE Serial Interface
AutoShutdown Between Conversions
Low-Power ADC
2.5mA at 225ksps
22A at 1ksps
0.2A at Shutdown
Low-Power DAC: 1.5mA
Evaluation Kit Available (Order MAX1258EVKIT)
MAX1340/MAX1342/MAX1346/MAX1348
12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
________________________________________________________________
Maxim Integrated Products
1
Ordering Information/Selector Guide
19-3332; Rev 3; 3/08
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.
EVALUATION
KIT
AVAILABLE
Pin Configurations appear at end of data sheet.
PART
TEMP RANGE
PIN-PACKAGE
REF
VOLTAGE
(V)
ANALOG
SUPPLY
VOLTAGE (V)
RESOLUTION
BITS**
ADC
CHANNELS
DAC
CHANNELS
GPIOs
MAX1340BETX
-40
°C to +85°C
36 Thin QFN-EP*
4.096
4.75 to 5.25
12
8
4
0
MAX1342BETX
-40
°C to +85°C
36 Thin QFN-EP*
4.096
4.75 to 5.25
12
8
4
MAX1346BETX
-40
°C to +85°C
36 Thin QFN-EP*
4.096
4.75 to 5.25
12
4
0
MAX1348BETX
-40
°C to +85°C
36 Thin QFN-EP*
4.096
4.75 to 5.25
12
4
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
*
EP = Exposed pad.
**
Number of resolution bits refers to both DAC and ADC.
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| MAX1342BETX+ | 功能描述:ADC / DAC多通道 12-Bit 8Ch 300ksps 5.25 Precision ADC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX1342BETX+T | 功能描述:ADC / DAC多通道 12-Bit 8Ch 300ksps 5.25 Precision ADC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX1342BETX-T | 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
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