Sub-µA (750nA) Op Amp Extends Battery Life
The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 family of micropower op amps operate from a single +1.8V to +5.5V supply and draw only 750nA of supply current. The MAX4470 family feature ground-sensing inputs and rail-to-rail output. The ultra-low supply current, low-operating voltage, and rail-to-rail output capabilities make these operational amplifiers ideal for use in single lithium ion (Li+), or two-cell NiCd or alkaline battery systems. The rail-to-rail output stage of the MAX4464/MAX4470/MAX4471/MAX4472/MAX4474 amplifiers is capable of driving the output voltage to within 4mV of the rail with a 100kΩ load, and can sink and source 11mA with a +5V supply. These amplifiers are available in both fully compensated and decompensated versions. The single MAX4470, dual MAX4471, and the quad MAX4472 are unity-gain stable. The single MAX4464 and the dual MAX4474 are stable for closed-loop gain configurations of ≥ +5V/V. These amplifiers are available in space-saving WLP, SC70, SOT23, µMAX®, and TSSOP packages.
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MAX4464-MAX4474 Data Sheet | MAX4464-MAX4474.pdf |
Part Number | Amps. | Rail to Rail | VSUPPLY (Total) (V) | VSUPPLY (Total) (V) | ICC per Amp. (µA) | VOS (µV) | CMRR @DC (dB) | PSRR @DC (dB) | Input IBIAS (nA) | Unity Gain BW (MHz) | Slew Rate (V/µs) | en (nV/√Hz) | Package/Pins | Budgetary Price |
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min | max | typ | max | typ | typ | max | typ | typ | < | See Notes | ||||
MAX4464 | 1 | Output Only | 1.8 | 5.5 | 0.75 | 7000 | 95 | 90 | 1.5 | 0.04 | 0.02 | 120 | SC-70/5 SOT/5 | $0.75 @1k |
MAX4470 | 1 | 0.009 | 0.002 | SC-70/5 SOT/5 WLP/6 | $0.94 @1k | |||||||||
MAX4471 | 2 | 0.009 | 0.002 | SOIC(N)/8 SOT/8 | $0.90 @1k | |||||||||
MAX4472 | 4 | 0.009 | 0.002 | SOIC(N)/14 TSSOP/14 | $1.58 @1k | |||||||||
MAX4474 | 2 | 0.04 | 0.02 | µMAX/8 SOIC(N)/8 SOT/8 | $1.22 @1k | |||||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
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MAX4472ESD | No Longer Available | MAX4472ESD+ | SOIC(N),;14 pin;54.2 mm² | -40°C to +85°C | No |
MAX4472ESD+ | Active | SOIC(N),;14 pin;54.2 mm² | -40°C to +85°C | Lead Free | |
MAX4472ESD+T | Active | SOIC(N),;14 pin;54.2 mm² | -40°C to +85°C | Lead Free | |
MAX4472ESD-T | No Longer Available | MAX4472ESD+T | N.SO;14 pin | -40°C to +85°C | See data sheet |
MAX4472EUD | No Longer Available | MAX4472EUD+ | TSSOP,;14 pin;33.4 mm² | -40°C to +85°C | No |
MAX4472EUD+ | Active | TSSOP,;14 pin;33.4 mm² | -40°C to +85°C | Lead Free | |
MAX4472EUD+T | Active | TSSOP,;14 pin;33.4 mm² | -40°C to +85°C | Lead Free | |
MAX4472EUD-T | No Longer Available | MAX4472EUD+T | TSSOP;14 pin | -40°C to +85°C | See data sheet |