參數(shù)資料
型號： MAX1261BEEI+
廠商： Maxim Integrated Products
文件頁數(shù)： 1/20頁
文件大?。?/td> 0K
描述： IC ADC 12BIT 250KSPS 28-QSOP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 50
位數(shù)： 12
采樣率（每秒）： 250k
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 5.1mW
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： 28-SSOP（0.154"，3.90mm 寬）
供應商設(shè)備封裝： 28-QSOP
包裝： 管件
輸入數(shù)目和類型： 8 個單端，單極；8 個單端，雙極；4 個偽差分，單極；4 個偽差分，雙極
產(chǎn)品目錄頁面： 1396 (CN2011-ZH PDF)
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.
General Description
The MAX1261/MAX1263 low-power, 12-bit analog-to-
digital converters (ADCs) feature a successive-approxi-
mation ADC, automatic power-down, fast wake-up
(2s), an on-chip clock, +2.5V internal reference, and a
high-speed, byte-wide parallel interface. They operate
with a single +3V analog supply and feature a VLOGIC
pin that allows them to interface directly with a +1.8V to
+5.5V digital supply.
Power consumption is only 5.7mW (VDD = VLOGIC) at
the maximum sampling rate of 250ksps. Two software-
selectable power-down modes enable the MAX1261/
MAX1263 to be shut down between conversions;
accessing the parallel interface returns them to normal
operation. Powering down between conversions can
cut supply current to under 10A at reduced sampling
rates.
Both devices offer software-configurable analog inputs
for unipolar/bipolar and single-ended/pseudo-differen-
tial operation. In single-ended mode, the MAX1261 has
eight input channels and the MAX1263 has four input
channels (four and two input channels, respectively,
when in pseudo-differential mode).
Excellent dynamic performance and low power, com-
bined with ease of use and small package size, make
these converters ideal for battery-powered and data-
acquisition applications or for other circuits with demand-
ing power consumption and space requirements.
The MAX1261 is available in a 28-pin QSOP package,
while the MAX1263 is available in a 24-pin QSOP. For
pin-compatible +5V, 12-bit versions, refer to the
MAX1262/MAX1264 data sheet.
Applications
Industrial Control Systems
Data Logging
Energy Management
Patient Monitoring
Data-Acquisition Systems
Touch Screens
Features
o 12-Bit Resolution, ±0.5 LSB Linearity
o +3V Single Operation
o User-Adjustable Logic Level (+1.8V to +3.6V)
o Internal +2.5V Reference
o Software-Configurable, Analog Input Multiplexer
8-Channel Single Ended/
4-Channel Pseudo-Differential (MAX1261)
4-Channel Single Ended/
2-Channel Pseudo-Differential (MAX1263)
o Software-Configurable, Unipolar/Bipolar Inputs
o Low Power
1.9mA (250ksps)
1.0mA (100ksps)
400A (10ksps)
2A (Shutdown)
o Internal 3MHz Full-Power Bandwidth Track/Hold
o Byte-Wide Parallel (8 + 4) Interface
o Small Footprint
28-Pin QSOP (MAX1261)
24-Pin QSOP (MAX1263)
MAX1261/MAX1263
250ksps, +3V, 8-/4-Channel, 12-Bit ADCs
with +2.5V Reference and Parallel Interface
________________________________________________________________ Maxim Integrated Products
1
19-2719; Rev 0; 04/03
PART
MAX1261ACEI
0°C to +70°C
TEMP RANGE
PIN-PACKAGE
28 QSOP
Ordering Information
Pin Configurations
±0.5
INL
(LSB)
MAX1261BCEI
0°C to +70°C
±1
28 QSOP
Ordering Information continued at end of data sheet.
Typical Operating Circuits appear at end of data sheet.
15
14
CH7
CS
QSOP
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
1
2
3
4
5
6
7
8
9
10
11
12
13
VLOGIC
VDD
REF
REFADJ
GND
COM
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CLK
WR
RD
INT
D0/D8
D1/D9
D2/D10
D3/D11
D4
D5
D6
D7
HBEN
MAX1261
Pin Configurations continued at end of data sheet.
MAX1261BEEI
MAX1261AEEI
-40°C to +85°C
±1
-40°C to +85°C
±0.5
28 QSOP
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1261BEEI+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 250ksps 3.6V 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1261BEEI+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 250ksps 3.6V 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1261BEEI-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 輸入類型:Differential 信噪比:107 dB 接口類型: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1262ACEI 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1262ACEI+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 400ksps 5.5V 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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