- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9466 > MAX1358BETL+ (Maxim Integrated Products)IC DAS 16BIT 40-TQFN PDF資料下載
參數(shù)資料
| 型號： | MAX1358BETL+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 20/71頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS 16BIT 40-TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 分辨率（位）： | 16 b |
| 采樣率（每秒）： | 21.94k |
| 數(shù)據(jù)接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 電壓電源： | 模擬和數(shù)字 |
| 電源電壓： | 1.8 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 40-TQFN-EP（6x6） |
| 包裝： | 托盤 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當(dāng)前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁
MAX1358B
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
______________________________________________________________________________________
27
and dynamic range constraints. The force-sense DAC
provides 10-bit resolution for precise sensor applica-
tions. The ADC and DACs both utilize a low-drift 1.25V
internal bandgap reference for conversions and full-
scale range setting. The RTC has a 138-year range and
provides an alarm function that can be used to wake up
the system or cause an interrupt at a predefined time.
The power-supply voltage monitor detects when DVDD
falls below a trip threshold voltage of +1.8V and asserts
RESET. The MAX1358B uses a 4-wire serial interface to
communicate
directly
among
SPI,
QSPI,
or
MICROWIRE devices for system configuration and
readback functions.
Analog-to-Digital Converter (ADC)
The MAX1358B includes a sigma-delta ADC with pro-
grammable conversion rate, a PGA, and a dual 10:1
input mux. When performing continuous conversions at
10sps or single conversions at the 40sps setting (effec-
tively 10sps due to four sample sigma-delta settling),
the ADC has 16-bit noise-free resolution. The noise-free
resolution drops to 10 bits at the maximum sampling
rate of 477sps. Differential inputs support unipolar
(between 0 and VREF) and bipolar (between ±VREF)
modes of operation. Note: Avoid combinations of input
signal and PGA gains that exceed the reference range
at the ADC input. The ADOU bit in the STATUS register
indicates if the ADC has overranged or underranged.
Zero-scale and full-scale calibrations remove offset and
gain errors. Direct access to gain and zero-scale cali-
bration registers allows system-level offset and gain cal-
ibration. The zero-scale adjustment register allows
intentional positive offset skewing to preserve unipolar-
mode resolution for signals that have a slight negative
offset (i.e., unipolar clipping near zero can be removed).
Perform ADC calibration whenever the ADC configura-
tion, temperature, or AVDD changes. The ADC-done sta-
tus can be programmed to provide an interrupt on INT
or on any UPIO_.
PGA Gain
An integrated PGA provides four selectable gains (+1V/V,
+2V/V, +4V/V, and +8V/V) to maximize the dynamic
range of the ADC. Bits GAIN1 and GAIN0 set the gain
(see the
ADC Register for more information). The PGA
gain is implemented in the digital filter of the ADC.
ADC Modulator
The MAX1358B performs analog-to-digital conversions
using a single-bit, 3rd-order, switched-capacitor sigma-
delta modulator. The sigma-delta modulation converts
the input signal into a digital pulse train whose average
duty cycle represents the digitized signal information.
The pulse train is then processed by a digital decimation
filter. The modulator provides 2nd-order frequency shap-
ing of the quantization noise resulting from the single-bit
quantizer. The modulator is fully differential for maximum
signal-to-noise ratio and minimum susceptibility to
power-supply noise.
Signal-Detect Comparator
INT asserts (and remains asserted) within 30s when
the differential voltage on the selected analog inputs
exceeds the signal-detect comparator trip threshold.
The signal-detect comparator’s differential input trip
threshold (i.e., offset) is user selectable and can be pro-
grammed to the following values: 0mV, 50mV, 100mV,
150mV, or 200mV.
Analog Inputs
The ADC provides two external analog inputs: AIN1
and AIN2. The rail-to-rail inputs accept differential or
single-ended voltages, or external temperature-sensing
diodes. The unused op amps, switches, or DAC inputs
and output pins can also be used as rail-to-rail analog
inputs if the associated function is disabled.
Analog Input Protection
Internal protection diodes clamp the analog inputs to
AVDD and AGND and allow the channel input to swing
from (AGND - 0.3V) to (AVDD + 0.3V). For accurate
conversions near full scale, the inputs must not exceed
AVDD by more than 50mV or be lower than AGND by
50mV. If the inputs exceed (AGND - 0.3V) to (AVDD +
0.3V), limit the current to 50mA.
Analog Mux
The MAX1358B includes a dual 10:1 mux for the positive
and negative inputs of the ADC. Figure 3 illustrates which
signals are present at the inputs of each mux for the
MAX1358B. The MUXP[3:0] and MUXN[3:0] bits of the
MUX register select the input to the ADC and the signal-
detect comparator (Tables 8 and 9). See the MUX register
description in the
Register Definitions section for multi-
plexer functionality. The POL bit of the ADC register
swaps the polarity of mux output signals to the ADC.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| V375B24M300BL | CONVERTER MOD DC/DC 24V 300W |
| VI-20J-MY-S | CONVERTER MOD DC/DC 36V 50W |
| MAX1340BETX+T | IC ADC/DAC 12BIT W/FIFO 36WQFN |
| VI-25Z-MY-S | CONVERTER MOD DC/DC 2V 20W |
| LTC6903IMS8#PBF | IC OSC SILICON 68MHZ 8-MSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1358BETL+ | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) 16-Bit 2Ch .512ksps 3.6V Precision SoIC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX1358BETL+T | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) 16-Bit 2Ch .512ksps 3.6V Precision SoIC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX1358BETL+TW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2Ch .512ksps 3.6V Precision SoIC 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 |
| MAX1358BETL+W | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2Ch .512ksps 3.6V Precision SoIC 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 |
| MAX1358BETL-T | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。