Datasheet MAX4249, MAX4257 (Maxim) - 7

MAX4249–MAX4257 UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps Typical Operating Characteristics (continued) (VDD = 5V, VSS = 0V, VCM = VOUT = VDD/2, input noise floor of test equipment =10nV/!Hz for all distortion measurements, TA = +25°C, unless otherwise noted.) OUTPUT IMPEDANCE INPUT VOLTAGE-N0ISE DENSITY vs. FREQUENCY vs. FREQUENCY 0.1Hz TO 10HzP-P NOISE 1000 30 AV = 10 (MAX4249/MAX4255/ √Hz) VDD = 3V OR 5V MAX4256/MAX4257) 25 ) MAX4249-57 TOC21 100 MAX4249-57 TOC19 Ω MAX4249-57 TOC20 20 10 15 200nV/div 10 OUTPUT IMPEDANCE ( 1 5 AV = 1 (MAX4250–MAX4254) VP-PNOISE = 760nVP-P 0.1 Vn-EQUIVALENT INPUT NOISE-VOLTAGE (nV/ 0 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1s/div FREQUENCY (Hz) FREQUENCY (Hz) MAX4250–MAX4254 MAX4250–MAX4254 MAX4249/MAX4255/MAX4256/MAX4257 TOTAL HARMONIC DISTORTION PLUS NOISE FFT OF DISTORTION AND NOISE FFT OF DISTORTION AND NOISE vs. OUTPUT VOLTAGE (VDD = 5V) 0 20 10 VOUT = 2VP-P R V L = 1kΩ OUT = 4VP-P AV = 10 V -20 f f IN O = 1kHz 0 O = 1kHz fO = 3kHz AV = 1 FILTER BW = 30kHz VO -40 MAX4249-57 TOC22 -20 MAX4249-57 TOC23 VIN 1 RL MAX4249-57 TOC24 VO 100kΩ -60 -40 11kΩ fO 10kΩ -80 fO -60 11kΩ 100kΩ 0.1 RL = 1kΩ THD+N (%) -100 AMPLITUDE (dBc) -80 AMPLITUDE (dBc) -120 HD2 HD2 HD4 -100 HD3 0.01 HD3 HD5 R -140 -120 L = 10kΩ R -160 -140 0.001 L = 100kΩ 10 5k 10k 15k 20k 10 5k 10k 15k 20k 0 1 2 3 4 5 FREQUENCY (Hz) FREQUENCY (Hz) OUTPUT VOLTAGE (VP-P) MAX4250–MAX4254 MAX4249/MAX4255/MAX4256/MAX4257 MAX4250–MAX4254 TOTAL HARMONIC DISTORTION PLUS NOISE TOTAL HARMONIC DISTORTION PLUS NOISE TOTAL HARMONIC DISTORTION vs. OUTPUT VOLTAGE SWING (VDD = 3V) vs. OUTPUT VOLTAGE SWING PLUS NOISE vs. FREQUENCY 10 1 1 VIN A V V = 10 IN VIN VOUT VOUT VOUT RL RL RL 1 MAX4249-57 TOC25 MAX4249-57 TOC26 MAX4249-57 TOC27 11kΩ 100kΩ 11kΩ 100kΩ 0.1 R2 R1 0.1 R1 = 560Ω, R2 = 53kΩ AV = 100 0.1 RL = 1kΩ 0.01 THD+N (%) THD+N (%) f THD+N (%) O = 20kHz, FILTER BW = 80kHz A 0.01 V = 10 R1 = 5.6kΩ, R2 = 53kΩ 0.01 RL = 10kΩ 0.001 AV = 10 RL = 100kΩ FILTER BW = 22kHz f A O = 3kHz V = 1 RL = 10kΩ TO GND FILTER BW = 30kHz fO = 3kHz, FILTER BW = 30kHz 0.001 0.001 V 0.0001 O = 2VP-P 0 1 2 3 0 1 2 3 4 5 10 100 1k 10k OUTPUT VOLTAGE (VP-P) OUTPUT VOLTAGE (VP-P) FREQUENCY (Hz) Maxim Integrated 7