參數(shù)資料
型號： MAX1383ATP+T
廠商： Maxim Integrated Products
文件頁數(shù)： 1/25頁
文件大小： 0K
描述： IC ADC 12BIT 1.25MSPS 20-TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
位數(shù)： 12
采樣率（每秒）： 1.25M
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 2
功率耗散（最大）： 85.5mW
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： 20-WQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 20-TQFN-EP（5x5）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 2 個單端，單極；2 個單端，雙極；1 個差分，單極；1 個差分，雙極
General Description
The MAX1377/MAX1379/MAX1383 feature two simulta-
neous-sampling, low-power, 12-bit ADCs with serial
interface and internal voltage reference. Fast sampling
rate, low power dissipation, and excellent dynamic per-
formance make the MAX1377/MAX1379/MAX1383
ideal for industrial process control, motor control, and
RF applications.
Conversion results are available through a SPI-/
QSPI-/MICROWIRE-/DSP-compatible interface with
independent serial digital outputs for each channel. The
serial outputs allow twice as much data to be transferred
at the given clock rate. The conversion results for both
ADCs can also be output on a single digital output for
microcontrollers (Cs) and DSPs with only a single serial
input available.
The MAX1377 operates from a 2.7V to 3.6V analog sup-
ply and the MAX1379/MAX1383 operate from a 4.75V
to 5.25V analog supply. A separate 1.8V to AVDD digi-
tal supply allows interfacing to low voltage logic without
the use of level translators.
Two power-down modes, partial and full, allow the
MAX1377/MAX1379 and MAX1383 (full power-down only)
to save power between conversions. Partial power-down
mode reduces the supply current to 2mA while leaving
the reference enabled for quick power-up. Full power-
down mode reduces the supply current to 1A.
The MAX1377/MAX1379 inputs accept voltages
between zero and the reference voltage or ±VREF/2.
The MAX1383 offers an input voltage range of ±10V,
which is ideal for industrial and motor-control applica-
tions. The input to each of the ADCs supports either a
true-differential input or two single-ended inputs.
The MAX1377/MAX1379/MAX1383 are available in a
20-pin TQFN package, and are specified for the automo-
tive (-40°C to +125°C) temperature range.
Applications
Features
Dual, Simultaneous-Sampling, 12-Bit Successive
Approximation Register (SAR) ADCs
2 x 2 Mux Inputs or Two Differential Inputs
1.25Msps Sampling Rate per ADC
Internal or External Reference
Excellent Dynamic Performance
70dB SINAD (MAX1377)
71dB SINAD (MAX1379/MAX1383)
84dBc/SFDR
1MHz Full-Linear Bandwidth
2.7V to 3.6V Low-Power Operation (MAX1377)
50mW (Normal Operation)
6mW (Partial Power-Down)
3W (Full Power-Down)
4.75V to 5.25V Low-Power Operation (MAX1379)
90mW (Normal Operation)
10mW (Partial Power-Down)
5W (Full Power-Down)
4.75V to 5.25V Low-Power Operation (MAX1383)
280mW (Normal Operation)
2.5W (Full Power-Down)
20MHz, SPI-Compatible, 3-Wire Serial Interface
User-Selectable Single (0.625Msps max) or Dual
Outputs (1.25Msps max)
Input Range: ±10V (MAX1383), 0–VREF or
±VREF/2 (MAX1377/MAX1379)
Small 20-Pin TQFN Package
MAX1377/MAX1379/MAX1383
Dual, 12-Bit, 1.25Msps Simultaneous-Sampling
ADCs with Serial Interface
________________________________________________________________
Maxim Integrated Products
1
19-4126; Rev 1; 2/09
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.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX1377ATP+
-40°C to +125°C
20 TQFN-EP*
MAX1379ATP+
-40°C to +125°C
20 TQFN-EP*
MAX1383ATP+
-40°C to +125°C
20 TQFN-EP*
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed pad.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Motor Control
Communications
Data Acquisition
Bill Validation
Portable Instruments
MUX
12-BIT
SAR
ADC2
REF
REFSEL
RGND
SEL
AGND
DGND
DOUT2
SCLK
CNVST
DOUT1
OUTPUT
BUFFER
OUTPUT
BUFFER
INTERNAL
REFERENCE
CONTROL
LOGIC
SERIAL
INTERFACE
AND TIMING
VL
T/H
AIN1A
AIN1B
AIN2A
AIN2B
T/H
U/B
S/D
VL
AVDD
A = 1
12-BIT
SAR
ADC1
MAX1377
MAX1379
MAX1383
CS
Functional Diagram
Pin Configuration appears at end of data sheet.
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