參數(shù)資料
型號(hào)： MAX1058BETM+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 14/44頁(yè)
文件大?。?/td> 0K
描述： IC ADC/DAC 10BIT 48-TQFN-EP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類型： ADC，DAC
分辨率（位）： 10 b
采樣率（每秒）： 225k
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： 4.75 V ~ 5.25 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 48-WFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 48-TQFN-EP（7x7）
包裝： 帶卷 (TR)
MAX1020/MAX1022/MAX1057/MAX1058
10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
______________________________________________________________________________________
21
Unipolar or Bipolar Conversions
Address the unipolar- and bipolar-mode registers
through the setup register (bits 1 and 0). See Table 5 for
the setup register. See Figures 3 and 4 for the transfer-
function graphs. Program a pair of analog inputs for dif-
ferential operation by writing a one to the appropriate bit
of the bipolar- or unipolar-mode register. Unipolar mode
sets the differential input range from 0 to VREF1. A nega-
tive differential analog input in unipolar mode causes the
digital output code to be zero. Selecting bipolar mode
sets the differential input range to ±VREF1 / 2. The digital
output code is binary in unipolar mode and two’s com-
plement in bipolar mode.
In single-ended mode, the MAX1020/MAX1022/
MAX1057/MAX1058 always operate in unipolar mode.
The analog inputs are internally referenced to AGND
with a full-scale input range from 0 to the selected refer-
ence voltage.
Analog Input (T/H)
The equivalent circuit of Figure 2 shows the ADC input
architecture of the MAX1020/MAX1022/MAX1057/
MAX1058. In track mode, a positive input capacitor is
connected to AIN0–AIN15 in single-ended mode and
AIN0, AIN2, and AIN4–AIN14 (only positive inputs) in
differential mode. A negative input capacitor is con-
nected to AGND in single-ended mode or AIN1, AIN3,
and AIN5–AIN15 (only negative inputs) in differential
mode. For external T/H timing, use clock mode 01. After
the T/H enters hold mode, the difference between the
sampled positive and negative input voltages is con-
verted. The input capacitance charging rate determines
the time required for the T/H to acquire an input signal.
If the input signal’s source impedance is high, the
required acquisition time lengthens.
Any source impedance below 300
does not signifi-
cantly affect the ADC’s AC performance. A high-imped-
ance source can be accommodated either by
lengthening tACQ (only in clock mode 01) or by placing
a 1F capacitor between the positive and negative ana-
log inputs. The combination of the analog-input source
impedance and the capacitance at the analog input cre-
ates an RC filter that limits the analog input bandwidth.
Input Bandwidth
The ADC’s input-tracking circuitry has a 1MHz small-
signal bandwidth, making it is possible to digitize high-
speed transient events and measure periodic signals
with bandwidths exceeding the ADC’s sampling rate by
using undersampling techniques. Anti-alias prefiltering
of the input signals is necessary to avoid high-frequen-
cy signals aliasing into the frequency band of interest.
Analog-Input Protection
Internal electrostatic-discharge (ESD) protection diodes
clamp all analog inputs to AVDD and AGND, allowing
the inputs to swing from (VAGND - 0.3V) to (VAVDD +
0.3V) without damage. However, for accurate conver-
sions near full scale, the inputs must not exceed VAVDD
by more than 50mV or be lower than AGND by 50mV. If
an analog input voltage exceeds the supplies, limit the
input current to 2mA.
Internal FIFO
The MAX1020/MAX1022/MAX1057/MAX1058 contain a
first-in/first-out (FIFO) buffer that holds up to 16 ADC
results plus one temperature result. The internal FIFO
allows the ADC to process and store multiple internally
clocked conversions and a temperature measurement
without being serviced by the serial bus.
If the FIFO is filled and further conversions are request-
ed without reading from the FIFO, the oldest ADC
results are overwritten by the new ADC results. Each
result contains 2 bytes, with the MSB preceded by four
leading zeros and the LSB followed by 2 sub-bits. After
each falling edge of
CS, the oldest available pair of
bytes of data is available at DOUT, MSB first. When the
FIFO is empty, DOUT is zero.
AIN0–AIN15
(SINGLE-ENDED),
AIN0, AIN2,
AIN4–AIN14
(DIFFERENTIAL)
COMPARATOR
HOLD
ACQ
HOLD
ACQ
HOLD
AVDD/2
REF1
AGND
CIN+
CIN-
DAC
AGND
(SINGLE-ENDED),
AIN1, AIN3,
AIN5–AIN15
(DIFFERENTIAL)
Figure 2. Equivalent Input Circuit
相關(guān)PDF資料
PDF描述
MS3450L20-18S CONN RCPT 9POS WALL MNT W/SCKT
MAX1359BETL+ IC DAS 16BIT 40-TQFN
D38999/26WG16PB CONN PLUG 16POS STRAIGHT W/PINS
MAX186CCWP+T IC ADC 12BIT SERIAL 20-SOIC
MS27474T18B28P CONN RCPT 28POS JAM NUT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1058EVKIT 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 Programmers, Development Systems RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX105ECS 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual, 6-Bit, 800Msps ADC with On-Chip, Wideband Input Amplifier
MAX105ECS+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 6-Bit 800Msps OnChip Wdbnd In Amp 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
MAX105ECS+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 6-Bit 800Msps OnChip Wdbnd In Amp 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
MAX105ECS-D 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*