參數(shù)資料
型號(hào)： 5962-87591023X
廠(chǎng)商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： ADC
英文描述： 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CQCC28
封裝： CERAMIC, LCC-28
文件頁(yè)數(shù)： 21/21頁(yè)
文件大?。?/td> 799K
代理商： 5962-87591023X
Detailed Description
The MAX4475–MAX4478/MAX4488/MAX4489 single-
supply operational amplifiers feature ultra-low noise
and distortion. Their low distortion and low noise make
them ideal for use as preamplifiers in wide dynamic-
range applications, such as 16-bit analog-to-digital
converters (see
Typical Operating Circuit). Their high-
input impedance and low noise are also useful for sig-
nal conditioning of high-impedance sources, such as
piezoelectric transducers.
These devices have true rail-to-rail ouput operation,
drive loads as low as 1k
while maintining DC accura-
cy, and can drive capactive loads up to 200pF without
oscillation. The input common-mode voltage range
extends from (VDD - 1.6V) to 200mV below the negative
rail. The push-pull output stage maintains excellent DC
characteristics, while delivering up to ±5mA of current.
The MAX4475–MAX4478 are unity-gain stable, while
the MAX4488/MAX4489 have a higher slew rate and
are stable for gains
≥ 5V/V. The MAX4475/MAX4488
feature a low-power shutdown mode, which reduces
the supply current to 0.01A and disables the outputs.
Low Distortion
Many factors can affect the noise and distortion that the
device contributes to the input signal. The following
guidelines offer valuable information on the impact of
design choices on Total Harmonic Distortion (THD).
Choosing proper feedback and gain resistor values for
a particular application can be a very important factor
in reducing THD. In general, the smaller the closed-
loop gain, the smaller the THD generated, especially
when driving heavy resistive loads. The THD of the part
normally increases at approximately 20dB per decade,
as a function of frequency. Operating the device near
or above the full-power bandwidth significantly
degrades distortion.
Referencing the load to either supply also improves the
part’s distortion performance, because only one of the
MOSFETs of the push-pull output stage drives the out-
put. Referencing the load to midsupply increases the
part’s distortion for a given load and feedback setting.
(See the Total Harmonic Distortion vs. Frequency graph
in the
Typical Operating Characteristics.)
For gains
≥ 5V/V, the decompensated devices
MAX4488/MAX4489 deliver the best distortion perfor-
mance, since they have a higher slew rate and provide
a higher amount of loop gain for a given closed-loop
gain setting. Capacitive loads below 100pF do not sig-
nificantly affect distortion results. Distortion perfor-
mance is relatively constant over supply voltages.
MAX4475–MAX4478/MAX4488/MAX4489
SOT23, Low-Noise, Low-Distortion,
Wide-Band, Rail-to-Rail Op Amps
9
Maxim Integrated
CZ
RF
VOUT
VIN
RG
VOUT
100mV/div
VIN
100mV/div
100mV
0V
AV = +2
RF = RG = 100k
2
s/div
Figure 1. Adding Feed-Forward Compensation
Figure 2a. Pulse Response with No Feed-Forward
Compensation
VOUT
100mV/div
VIN
100mV/div
AV = +2
RF = RG = 100k
2
s/div
Figure 2b. Pulse Response with 10pF Feed-Forward
Compensation
相關(guān)PDF資料
PDF描述
5962-87591043X 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CQCC28
5962-8759402YA 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, CDSO10
5962-8759402VYA 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, CDSO10
5962-8759405XA 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, MBCY2
5962-8759401YA 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, CDSO10
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
5962-8759102LA 制造商:Rochester Electronics LLC 功能描述:- Bulk
5962-8759102LX 制造商:Rochester Electronics LLC 功能描述:- Bulk
5962-87591043C 功能描述:模數(shù)轉(zhuǎn)換器 - ADC CMOS COMPLETE HIGH-SPEED 12-BIT A/D CONVERTER 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
5962-87591043X 功能描述:模數(shù)轉(zhuǎn)換器 - ADC LC2MOS Complete High Spd 12-Bit RoHS:否 制造商:Analog Devices 通道數(shù)量: 結(jié)構(gòu): 轉(zhuǎn)換速率: 分辨率: 輸入類(lèi)型: 信噪比: 接口類(lèi)型: 工作電源電壓: 最大工作溫度: 安裝風(fēng)格: 封裝 / 箱體:
5962-8759104LA 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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