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參數(shù)資料
| 型號(hào)： | MAX1144-MAX1145 |
| 廠(chǎng)商： | Maxim Integrated Products, Inc. |
| 英文描述： | 14-Bit ADCs, 150ksps, 3.3V Single Supply |
| 中文描述： | 14位ADC，150ksps，3.3V的單電源供電 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大小： | 1544K |
| 代理商： | MAX1144-MAX1145 |
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General Description
The MAX1144/MAX1145 are 150ksps, 14-bit ADCs.
These serially interfaced ADCs connect directly to
SPI, QSPI, and MICROWIRE devices without
external logic. They combine an input scaling network,
internal track/hold, clock, and three general-purpose
digital output pins (for external multiplexer or PGA con-
trol) in a 20-pin SSOP package. The excellent dynamic
performance (THD
≥
90dB), high speed (150ksps in
bipolar mode), and low power (8.0mA) of these ADCs
make them ideal for applications such as industrial
process control, instrumentation, and medical applica-
tions.
The MAX1144 accepts input signals of 0 to +6V (unipo-
lar) or ±6V (bipolar), while the MAX1145 accepts input
signals of 0 to +2.048V (unipolar) or ±2.048V (bipolar).
Operating from a single 3.135V to 3.465V analog digital
supply, powerdown modes reduce current consump-
tion to 0.15mA at 10ksps and further reduce supply
current to less than 20μA slower data rates.
A serial strobe output (SSTRB) allows direct connection
to the TMS320 family digital-signal processors. The
MAX1144/MAX1145 user can select either the internal
clock or an external serial-interface clock for the ADC to
perform analog-to-digital conversions.
The MAX1144/MAX1145 feature internal calibration cir-
cuitry to correct linearity and offset errors. On-demand
calibration allows the user to optimize performance.
Three user-programmable logic outputs are provided
for the control of an 8-channel mux or PGA.
The MAX1144/MAX1145 are available in a 20-pin SSOP
package and are fully specified over the -40°C to
+85°C temperature range.
Applications
Industrial Process Control
Industrial I/O Modules
Data-Acquisition Systems
Medical Instruments
Portable and Battery-Powered Equipment
Features
o
150ksps (Bipolar) and 125ksps (Unipolar)
Sampling ADC
o
14 Bits, No Missing Codes
o
1LSB INL Guaranteed
o
-100dB THD
o
3.3V Single-Supply Operation
o
Low-Power Operation
5mA typ (Unipolar Mode)
o
1.2μA Shutdown Mode
o
Software-Configurable Unipolar and Bipolar Input
Ranges
0 to +6V and ±6V (MAX1144)
0 to +2.048V and ±2.048V (MAX1145)
o
Internal or External Clock
o
SPI/QSPI/MICROWIRE TMS320-Compatible Serial
Interface
o
Three User-Programmable Logic Outputs
o
Small 20-Pin SSOP Package
M
14-Bit ADCs, 150ksps, 3.3V Single Supply
________________________________________________________________
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
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
AIN
AGND
CREF
CS
AV
DD
AGND
AV
DD
REF
TOP VIEW
DIN
DV
DD
DGND
SCLK
P1
P2
SHDN
DGND
12
11
9
10
RST
DOUT
SSTRB
PO
MAX1144
MAX1145
SSOP
Pin Configuration
Ordering Information
19-2465; Rev 0; 4/02
Ordering Information continued at end of data sheet.
Functional Diagram and Typical Application Circuit appear
at end of data sheet.
PART
TEMP
RANGE
PIN-
PACKAGE
INL
(LSB)
MAX1144
ACAP
MAX1144BCAP
MAX1144AEAP
MAX1144BEAP
0
°
C to +70
°
C
0
°
C to +70
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
20 SSOP
20 SSOP
20 SSOP
20 SSOP
±
1
±
2
±
1
±
2
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1145ACAP | 14-Bit ADCs, 150ksps, 3.3V Single Supply |
| MAX1144AEAP | 14-Bit ADCs, 150ksps, 3.3V Single Supply |
| MAX1144BCAP | 14-Bit ADCs, 150ksps, 3.3V Single Supply |
| MAX1144BEAP | 14-Bit ADCs, 150ksps, 3.3V Single Supply |
| MAX1144ACAP | 14-Bit ADCs, 150ksps, 3.3V Single Supply |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1145 | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:14-Bit ADCs.150ksps.3.3V Single Supply |
| MAX1145ACAP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1145ACAP+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 150ksps 2.2V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1145ACAP+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 150ksps 2.2V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1145ACAP-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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