Electronic Components Datasheet Search |
|
MAX4253 Datasheet(PDF) 8 Page - Maxim Integrated Products |
|
MAX4253 Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 16 page _______________Detailed Description The MAX4249–MAX4257 single-supply operational amplifiers feature ultra-low noise and distortion while consuming very little power. Their low distortion and low noise make them ideal for use as preamplifiers in wide dynamic-range applications, such as 16-bit ana- log-to-digital converters (see Typical Operating Circuit). Their high input impedance and low noise are also use- ful for signal conditioning of high-impedance sources, such as piezoelectric transducers. These devices have true rail-to-rail output operation, drive loads as low as 1k Ω while maintaining DC accura- cy, and can drive capacitive loads up to 400pF without oscillation. The input common-mode voltage range extends from VDD - 1.1V to 200mV beyond the negative rail. The push/pull output stage maintains excellent DC characteristics, while delivering up to ±5mA of current. The MAX4250–MAX4254 are unity-gain stable, whereas the MAX4249/MAX4255/MAX4256/MAX4257 have a higher slew rate and are stable for gains ≥10V/V. The MAX4249/ MAX4251/MAX4253/MAX4256 feature a low- power shutdown mode, which reduces the supply cur- rent to 0.5µA 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. Large-value feed- back resistors can significantly improve distortion. 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 mid-supply 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.) SOT23, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps 8 _______________________________________________________________________________________ Pin Description Amplifier Output 6 1 1, 9 1, 7 1, 7, 8, 14 1, 13 OUT, OUTA, OUTB, OUTC, OUTD 3, 7 3, 5 3, 5, 10, 12 3, 11 IN+, INA+, INB+, INC+, IND+ Noninverting Amplifier Input 3 3 4 4 11 4 VSS Negative Supply. Connect to ground for single-supply operation. 4 2 2, 8 2, 6 2, 6, 9, 13 2, 12 IN-, INA-, INB-, INC-, IND- 5, 6 — — 6, 9 SHDN, SHDNA, SHDNB Shutdown Input. Connect to VDD or leave unconnected for normal operation (amplifier(s) enabled). 8 — 10 8 Inverting Amplifier Input 2 4 4 14 VDD Positive Supply 7 5 — — — 5, 7, 8, 10 N.C. No Connection. Not internally connected. 1, 5 — PIN MAX4249/MAX4253 MAX4252 MAX4257 10 µMAX 14 SO MAX4254 MAX4250 MAX4255 MAX4251 MAX4256 14 SO 8 µMAX/SO 5 SOT23 NAME FUNCTION |
Similar Part No. - MAX4253 |
|
Similar Description - MAX4253 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |