MCP6D11
Low-Noise, Precision, 90 MHz Differential I/O Amplifier
Features
General Description
• Low Power
The MCP6D11 from Microchip Technology is a low-
noise, low-distortion Differential I/O Amplifier optimized
for driving high-performance 14-, and 16-Bit SAR
ADCs, such as the MCP331x1D ADC family. Featuring
a low 5.0 nV/√Hz input-referred voltage noise and dis-
tortion of less than -116 dBc with an input signal of up
to 100 kHz (2Vpp), the MCP6D11 consumes only
3.5 mW of quiescent power on a 2.5V supply. For
power sensitive applications, a Power-Down function
reduces the power consumption to less than 13 µW.
- IQ: 1.4 mA
- Supply Voltage Range: 2.5V to 5.5V
• Gain-Bandwidth Product: 90 MHz
• Slew Rate: 25V/µs
• Low Noise: 5.0 nV/√Hz, f = 10 kHz
• Low Distortion (2Vp-p, 10 kHz):
- HD2: -138 dBc
- HD3: -137 dBc
Through its VOCM pin, the MCP6D11 allows easy
control of its output common-mode voltage, which can
be set independently of the input common-mode
voltage. This, coupled with an input common-mode
range that extends below the negative supply rail, and
a near rail-to-rail output swing capability, results in a
simple driver amplifier solution for a variety of ADCs.
• Fast Settling: 200 ns to 0.01%
• Low Offset: 150 µV Max.
• Power-Down Function
• Input Vcm-Range Includes Negative Rail
• Rail-to-Rail Output
• Small Packages: MSOP-8, 3 x 3 mm QFN-16
• Extended Temperature Range: -40°C to +125°C
The MCP6D11 is the ideal interface solution for
converting single-ended, ground-referenced signal
sources into a fully differential output signal required to
preserve the high performance of today’s ultra-low
distortion, single-supply ADCs.
Typical Applications
• Precision ADC Driver:
- 14/16/18-bit SAR ADCs
- Delta-Sigma ADCs
The MCP6D11 is specified for the -40°C to +125°C
temperature range and is available in QFN-16
(3 x 3 mm) and MSOP-8 package options.
• Single-Ended to Differential Conversion
• Differential Active Filter
• Line Drivers
MCP6D11 Harmonic Distortion with a
10 kHz, 2Vpp Signal
Design Aids
• Microchip Advanced Part Selector (MAPS)
• Application Notes
Related Parts
• MCP331x1D SAR ADCs
2019 Microchip Technology Inc.
DS20006162A-page 1