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参数资料
| 型号： | MAX1238LEEE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | DIODE ZENER DUAL COMMON-CATHODE 300mW 10Vz 5mA-Izt 0.06 0.1uA-Ir 7.5 SOT-23 3K/REEL |
| 中文描述： | 12-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封装： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件页数： | 1/22页 |
| 文件大小： | 407K |
| 代理商： | MAX1238LEEE |
General Description
The MAX1236–MAX1239 low-power, 12-bit, multichan-
nel analog-to-digital converters (ADCs) feature internal
track/hold (T/H), voltage reference, clock, and an
I
2
C-compatible 2-wire serial interface. These devices
operate from a single supply of 2.7V to 3.6V (MAX1237/
MAX1239) or 4.5V to 5.5V (MAX1236/MAX1238) and
require only 670μA at the maximum sampling rate of
94.4ksps. Supply current falls below 230μA for sam-
pling rates under 46ksps. AutoShutdown powers
down the devices between conversions, reducing sup-
ply current to less than 1μA at low throughput rates.
The MAX1236/MAX1237 have four analog input chan-
nels each, while the MAX1238/MAX1239 have 12 ana-
log input channels each. The fully differential analog
inputs are software configurable for unipolar or bipolar,
and single-ended or differential operation.
The full-scale analog input range is determined by the
internal reference or by an externally applied reference
voltage ranging from 1V to V
DD
. The MAX1237/
MAX1239 feature a 2.048V internal reference and the
MAX1236/MAX1238 feature a 4.096V internal reference.
The MAX1236/MAX1237 are available in an 8-pin μMAX
package. The MAX1238/MAX1239 are available in a 16-
pin QSOP package. The MAX1236–MAX1239 are guar-
anteed over the extended temperature range
(-40°C to +85°C). For pin-compatible 10-bit parts, refer to
the MAX1136–MAX1139 data sheet. For pin-compatible
8-bit parts, refer to the MAX1036–MAX1039 data sheet.
Applications
Hand-Held Portable Applications
Medical Instruments
Battery-Powered Test Equipment
Solar-Powered Remote Systems
Received-Signal-Strength Indicators
System Supervision
Features
o
High-Speed I
2
C-Compatible Serial Interface
400kHz Fast Mode
1.7MHz High-Speed Mode
o
Single-Supply
2.7V to 3.6V (MAX1237/MAX1239)
4.5V to 5.5V (MAX1236/MAX1238)
o
Internal Reference
2.048V (MAX1237/MAX1239)
4.096V (MAX1236/MAX1238)
o
External Reference: 1V to V
DD
o
Internal Clock
o
4-Channel Single-Ended or 2-Channel Fully
Differential (MAX1236/MAX1237)
o
12-Channel Single-Ended or 6-Channel Fully
Differential (MAX1238/MAX1239)
o
Internal FIFO with Channel-Scan Mode
o
Low Power
670μA at 94.4ksps
230μA at 40ksps
60μA at 10ksps
6μA at 1ksps
0.5μA in Power-Down Mode
o
Software-Configurable Unipolar/Bipolar
o
Small Packages
8-Pin μMAX (MAX1236/MAX1237)
16-Pin QSOP (MAX1238/MAX1239)
M
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
________________________________________________________________
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
Ordering Information
19-2333; Rev 2; 2/03
Ordering Information continued at end of data sheet.
Pin Configurations appear at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
PART
TEMP
RANGE
- 40
°
C to + 85
°
C 8 μMAX
PIN-
PA CKA GE
I
2
C SLAVE
ADDRESS
0110100
0110000
0110010
0110110
0110100
0110000
0110010
0110110
IN L
( L SB
±
1
±
1
±
1
±
1
±
1
±
1
±
1
±
1
MAX1236
EUA
MAX1236KEUA* - 40
°
C to + 85
°
C 8 μMAX
MAX1236LEUA* - 40
°
C to + 85
°
C 8 μMAX
M AX 1236M E U A* - 40
°
C to + 85
°
C 8 μMAX
MAX1237
EUA
- 40
°
C to + 85
°
C 8 μMAX
MAX1237KEUA* - 40
°
C to + 85
°
C 8 μMAX
MAX1237LEUA* - 40
°
C to + 85
°
C 8 μMAX
M AX 1237M E U A* - 40
°
C to + 85
°
C 8 μMAX
*
Future product—contact factory for availability.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Selector Guide
PART
INPUT
CHANNELS
INTERNAL
REFERENCE
(V)
4.096
2.048
4.096
2.048
SUPPLY
VOLTAGE (V)
MAX1236EUA
MAX1237EUA
MAX1238EEE
MAX1239EEE
4
4
12
12
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1237KEUA | 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs |
| MAX1238MEEE | 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs |
| MAX1236KEUA | 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs |
| MAX1236 | 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs |
| MAX1237 | 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1238LEEE+ | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1238LEEE+T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1238LEEE-T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1238MEEE | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1238MEEE+ | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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