參數(shù)資料
型號(hào)： MAX1277
廠商： Maxim Integrated Products, Inc.
英文描述： 1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
中文描述： 1.5Msps、單電源、低功耗、真差分、12位ADC，內(nèi)置電壓基準(zhǔn)
文件頁(yè)數(shù)： 1/18頁(yè)
文件大小： 835K
代理商： MAX1277
General Description
The MAX1277/MAX1279 are low-power, high-speed, seri-
al-output, 12-bit, analog-to-digital converters (ADCs) with
an internal reference that operates at up to 1.5Msps.
These devices feature true-differential inputs, offering bet-
ter 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 MAX1277/MAX1279 operate from a single +2.7V to
+3.6V supply voltage. The MAX1277/MAX1279 include a
2.048V internal reference. The MAX1277 has a unipolar
analog input, while the MAX1279 has a bipolar analog
input. These devices feature a partial power-down mode
and a full power-down mode for use between conver-
sions, which lower the supply current to 2mA (typ) and
1μA (max), respectively. Also featured is a separate
power-supply input (V
L
), which allows direct interfacing to
+1.8V to V
DD
digital logic. The fast conversion speed,
low-power dissipation, excellent AC performance, and DC
accuracy (±1 LSB INL) make the MAX1277/MAX1279
ideal for industrial process control, motor control, and
base-station applications.
The MAX1277/MAX1279 come in a 12-pin TQFN pack-
age, and are available in the commercial (0°C to +70°C)
and extended (-40°C to +85°C) temperature ranges.
Applications
Communications
Portable Instruments
Data Acquisition
Bill Validation
Motor Control
Features
1.5Msps Sampling Rate
Only 22mW (typ) Power Dissipation
Only 1μA (max) Shutdown Current
High-Speed, SPI-Compatible, 3-Wire Serial Interface
68.5dB S/(N + D) at 525kHz Input Frequency
Internal True-Differential Track/Hold (T/H)
Internal 2.048V Reference
No Pipeline Delays
Small 12-Pin TQFN Package
M
1.5Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
________________________________________________________________
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
12
AIN+
11
N.C.
10
SCLK
4
5
N.C.
6
GND
1
2
REF
3
9
8
7
RGND
CNVST
DOUT
V
L
MAX1277
MAX1279
AIN-
V
DD
TQFN
TOP VIEW
PART
TEMP RANGE
PIN-
PACKAGE
INPUT
MAX1277
ACTC-T
MAX1277BCTC-T
MAX1277AETC-T
MAX1277BETC-T
MAX1279
ACTC-T
MAX1279BCTC-T
MAX1279AETC-T
MAX1279BETC-T
0
°
C to +70
°
C 12 TQFN-12
0
°
C to +70
°
C 12 TQFN-12
-40
°
C to +85
°
C 12 TQFN-12
-40
°
C to +85
°
C 12 TQFN-12
0
°
C to +70
°
C 12 TQFN-12
0
°
C to +70
°
C 12 TQFN-12
-40
°
C to +85
°
C 12 TQFN-12
-40
°
C to +85
°
C 12 TQFN-12
Unipolar
Unipolar
Unipolar
Unipolar
Bipolar
Bipolar
Bipolar
Bipolar
Pin Configuration
Ordering Information
MAX1277
MAX1279
DOUT
AIN+
4.7
μ
F
10
μ
F
10
μ
F
+2.7V TO +3.6V
0.01
μ
F
0.01
μ
F
0.01
μ
F
+1.8V TO V
DD
AIN-
REF
V
DD
DIFFERENTIAL
INPUT
VOLTAGE
RGND
V
L
GND
CNVST
SCLK
μ
C/DSP
+
-
Typical Operating Circuit
19-3365; Rev 0; 8/04
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
相關(guān)PDF資料
PDF描述
MAX1279BETC-T 1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1277ACTC 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1277ACTC+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1277ACTC+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1277ACTC-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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1277AETC 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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