参数资料
型号: MAX1225ETC+T
厂商: Maxim Integrated Products
文件页数: 1/18页
文件大小: 0K
描述: IC ADC 12BIT 1.5MSPS 12-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
位数: 12
采样率(每秒): 1.5M
数据接口: MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 18mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 12-WQFN 裸露焊盘
供应商设备封装: 12-TQFN-EP(4x4)
包装: 带卷 (TR)
输入数目和类型: 1 个差分,双极
General Description
The MAX1224/MAX1225 low-power, high-speed, serial-
output, 12-bit, analog-to-digital converters (ADCs) oper-
ate at up to 1.5Msps. These devices feature true-differen-
tial inputs, offering better noise immunity, distortion
improvements, and a wider dynamic range over single-
ended inputs. A standard SPI/QSPI/MICROWIRE
interface provides the clock necessary for conversion.
These devices easily interface with standard digital signal
processor (DSP) synchronous serial interfaces.
The MAX1224/MAX1225 operate from a single +2.7V to
+3.6V supply voltage and require an external reference.
The MAX1224 has a unipolar analog input, while the
MAX1225 has a bipolar analog input. These devices fea-
ture a partial power-down mode and a full power-down
mode for use between conversions, which lower the sup-
ply current to 1mA (typ) and 1A (max), respectively. Also
featured is a separate power-supply input (VL), which
allows direct interfacing to +1.8V to VDD digital logic. The
fast conversion speed, low-power dissipation, good AC
performance, and DC accuracy (±1.5 LSB INL) make the
MAX1224/MAX1225 ideal for industrial process control,
motor control, and base-station applications.
The MAX1224/MAX1225 come in a 12-pin TQFN pack-
age, and are available in the extended (-40°C to +85°C)
temperature range.
Applications
Data Acquisition
Communications
Bill Validation
Portable Instruments
Motor Control
Features
1.5Msps Sampling Rate
Only 18mW (typ) Power Dissipation
Only 1A (max) Shutdown Current
High-Speed, SPI-Compatible, 3-Wire Serial Interface
69dB S/(N + D) at 525kHz Input Frequency
Internal True-Differential Track/Hold (T/H)
External Reference
No Pipeline Delays
Small 12-Pin TQFN Package
MAX1224/MAX1225
1.5Msps, Single-Supply, Low-Power,
True-Differential, 12-Bit ADCs
________________________________________________________________
Maxim Integrated Products
1
12
AIN+
11
N.C.
10
SCLK
45
N.C.
6
GND
1
2
REF
3
9
8
7
RGND
CNVST
DOUT
VL
MAX1224
MAX1225
AIN-
VDD
TQFN
TOP VIEW
PART
TEMP RANGE
PIN-
PACKAGE
INPUT
MAX1224ETC+T
-40
°C to +85°C 12 TQFN
Unipolar
MAX1225ETC+T
-40
°C to +85°C 12 TQFN
Bipolar
Pin Configuration
Ordering Information
MAX1224
MAX1225
DOUT
AIN+
REF
4.7
μF
10
μF
10
μF
+2.7V TO +3.6V
0.01
μF
0.01
μF
0.01
μF
+1.8V TO VDD
AIN-
REF
VDD
DIFFERENTIAL
INPUT
VOLTAGE
RGND
VL
GND
CNVST
SCLK
μC/DSP
+
-
Typical Operating Circuit
19-3271; Rev 1; 4/09
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.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
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MAX1226ACEE+ 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
MAX1226ACEE+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
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