Precision Op Amps for Instrumentation - Microchip

Posted in Measurement, Instrumentation, Microchip
On Tuesday, April 17, 2007

Microchip announced the MCP6031, MCP6032, MCP6033 and MCP6034 (MCP603X) precision operational amplifiers (Op Amps). This new Op Amps have very small quiescent current (900 nA), with a maximum voltage offset 150 µV. This precision Op Amps are ideal for portable, handheld electronic devices used in the industrial, consumer electronics and medical markets.

Microchip’s MCP603X Precision Op-Amps

Operating voltage range of MCP603X is 1.8V to 5.5V, so it can run with two 1.5V battery cells, The chip low power consumption extends battery life, and their rail-to-rail input/output structure enables greater dynamic range and better performance across the entire operating-voltage range.

MCP6031 Precision Operational Amplifiers parameters:

Parameter Name	Value
Temperature (°C)	-40°C to +125°C
Vos Max (mV)	0.15
# Per Package	1
Offset Voltage
Iq Typical (µA)	900
Iq Max (mA)	1.35
GBWP (kHz)	10
Operating Voltage Range (V)	1.8 - 5.5
Device Description	Linear Op Amps
Input Voltage Noise Density (nV/rt(Hz))	165
PSRR Min (dB)	70
CMRR Min (dB)	70
deltaVos/deltaTa (uV/°C)	3
Ib (pA)	1
Aol (dB)	115
PM (deg)	65
Isc (mA)	23
Rail-to-Rail	In/Out

MCP6034 Precision Operational Amplifiers parameters:

Parameter Name	Value
Temp. Range (°C)	-40°C to +125°C
Vos Max (mV)	0.15
# Per Package	4
Offset Voltage
Iq Typical (µA)	0.9
Iq Max (mA)	0.00135
GBWP (kHz)	10
Operating Voltage Range (V)	1.8 - 5.5
Device Description	Linear Op Amps
Input Voltage Noise Density (nV/rt(Hz))	165
PSRR Min (dB)	70
CMRR Min (dB)	70
deltaVos/deltaTa (uV/°C)	3
Ib (pA)	1
Aol (dB)	115
PM (deg)	65
Isc (mA)	23
Rail-to-Rail	In/Out

The MCP603X devices are well suited for applications requiring high precision, low-voltage operation and low power consumption, such as portable instrumentation devices used in the industrial (digital multimeters, pressure-monitoring devices, portable gas detectors, toll-booth tags, bar-code scanners and RFID readers); medical (wearable heart-rate monitors, body-temperature measurement sensors and blood glucose meters); and consumer electronics (set-top boxes, portable audio players and gaming consoles) markets.

The MCP603X amplifiers are supported by Microchip's FilterLab software.

Pricing for 10,000-unit quantities:

MCP6031: $0.53 each
MCP6032: $0.71 each
MCP6033: $0.55 each
MCP6034: $1.26 each

Source: Microchip’s MCP603X Precision Operational Amplifiers

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