MCP6491

The Microchip’s MCP6491 operational amplifiers (op amps) has low input bias current (150 pA, typical at 125°C) and rail-to-rail input and output operation. This family is unity gain stable and has a gain bandwidth product of 7.5 MHz (typical). These devices operate with a single-supply voltage as low as 2.4V, while only drawing 530 µA/amplifier (typical) of quiescent current. These features make the family of op amps well suited for photodiode amplifier, pH electrode amplifier, low leakage amplifier, and battery powered signal conditioning applications, etc. The MCP6491 family is offered in SOT23 and SC70 packages. All devices are designed using an advanced CMOS process and fully specified in extended temperature range from -40°C to +125°C.

Features
  • Low Input Bias Current:150 pA (typical, TA = +125°C)
  • Gain-Bandwidth Product: 7.5 MHz
  • Low Quiescent Current: 530 µA/amplifier (typical)
  • Low Input Offset Voltage: 1.5 mV (max.)
  • Unity Gain Stable
  • Rail to Rail Input and Output
  • Small Packages: SOT23, SC70
Parameter
Parameter Name Value Value
Temp. Range (°C) -40°C to +125°C -40°C to +125°C
Vos Max (µV) 1500 1500
# per Package 1 1
Iq Typical (µA) 530 530
Iq Max (µA) 800 800
GBWP (kHz) 7500 7500
Operating Voltage Range (V) 2.4 to 5.5 2.4 to 5.5
Device Description Linear Op Amps Linear Op Amps
Input Voltage Noise Density (nV/rt(Hz)) 14 14
PSRR Min (dB) 90 90
CMRR Min (dB) 88 88
Vos/Ta (uV/°C) 2.5 2.5
Ib (pA) 1 1
Aol (dB) 115 115
PM (deg) 57 57
Isc (mA) 40 40
Rail-to-Rail In/Out In/Out
Unity Gain Stable Yes Yes
Slew Rate V/uS 6 6
Documents
MCP6491/2/4 Data SheetData Sheets08/16/20131831KB
AN1494 - Using MCP6491 Op Amps for Photodetection ApplicationsAppNote05/09/2013568KB
SPICE Model for MCP6491/2/4 DevicesSpice Model03/21/20142KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP6491T-E/LTY5SC70-40C to +125CT/R1.180.980.890.740.69
MCP6491T-E/OT5SOT-23-40C to +125CT/R1.090.910.820.690.63
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP6491T-E/OT0.0160000.0490005SOT-23-Matte Tine3
MCP6491T-E/OTVAO0.0160000.0490005SOT-23-Matte Tine3
MCP6491T-E/LTY0.0063000.0333335SC70-NiPdAue4
MCP6491/2/4 Data Sheet MCP6494
AN1494 MCP6491
SPICE Model for MCP6491/2/4 Devices MCP6494