MAX4249–MAX4257 UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps ELECTRICAL CHARACTERISTICS (continued) (VDD = 5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL connected to VDD/2, SHDN = VDD, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS MAX4250–MAX4254 f = 1kHz 0.0004 AV = 1V/V, VOUT = 2VP-P, RL = 1kΩ to GND (Note 7) f = 20kHz 0.006 Total Harmonic Distortion Plus THD+N % Noise MAX4249/MAX4255/ f = 1kHz 0.0012 MAX4256/MAX4257 AV = 1V/V, VOUT = 2VP-P, RL = 1kΩ to GND (Note 7) f = 20kHz 0.007 Capacitive-Load Stability No sustained oscillations 400 pF MAX4250–MAX4254, AV = 1V/V 10 Gain Margin GM MAX4249/MAX4255/MAX4256/MAX4257, dB 12.5 AV = 10V/V MAX4250–MAX4254, AV = 1V/V 74 Phase Margin ΦM MAX4249/MAX4255/MAX4256/MAX4257, Degrees 68 AV = 10V/V MAX4250–MAX4254 6.7 Settling Time To 0.01%, VOUT MAX4249/MAX4255/ µs = 2V step 1.6 MAX4256/MAX4257 IVDD = 5% of MAX4251/MAX4253 0.8 Delay Time to Shutdown tSH normal µs operation MAX4249/MAX4256 1.2 VOUT = 2.5V, MAX4251/MAX4253 8 Delay Time to Enable tEN VOUT settles to µs 0.1% MAX4249/MAX4256 3.5 Power-Up Delay Time tPU VDD = 0 to 5V step, VOUT stable to 0.1% 6 µs Note 2: SHDN is available on the MAX4249/MAX4251/MAX4253/MAX4256 only. Note 3: All device specifications are 100% tested at TA = +25°C. Limits over temperature are guaranteed by design. Note 4: Guaranteed by the PSRR test. Note 5: Offset voltage prior to reflow on the UCSP. Note 6: Guaranteed by design. Note 7: Lowpass-filter bandwidth is 22kHz for f = 1kHz and 80kHz for f = 20kHz. Noise floor of test equipment = 10nV/!Hz. 4 Maxim Integrated
