MCP6S91/2/3
Single-Ended, Rail-to-Rail I/O, Low-Gain PGA
Description
Features
• Multiplexed Inputs: 1 or 2 channels
• 8 Gain Selections:
The Microchip Technology Inc. MCP6S91/2/3 are
analog Programmable Gain Amplifiers (PGAs). They
can be configured for gains from +1 V/V to +32 V/V and
the input multiplexer can select one of up to two chan-
nels through a SPI port. The serial interface can also
put the PGA into shutdown to conserve power. These
PGAs are optimized for high-speed, low offset voltage
and single-supply operation with rail-to-rail input and
output capability. These specifications support single-
supply applications needing flexible performance or
multiple inputs.
- +1, +2, +4, +5, +8, +10, +16 or +32 V/V
• Serial Peripheral Interface (SPI™)
• Rail-to-Rail Input and Output
• Low Gain Error: ±1% (max.)
• Offset Mismatch Between Channels: 0 µV
• High Bandwidth: 1 to 18 MHz (typ.)
• Low Noise: 10 nV/√Hz @ 10 kHz (typ.)
• Low Supply Current: 1.0 mA (typ.)
• Single Supply: 2.5V to 5.5V
The one-channel MCP6S91 and the two-channel
MCP6S92 are available in 8-pin PDIP, SOIC and MSOP
packages. The two-channel MCP6S93 is available in a
10-pin MSOP package. All parts are fully specified from
-40°C to +125°C.
• Extended Temperature Range: -40°C to +125°C
Typical Applications
• A/D Converter Driver
• Multiplexed Analog Applications
• Data Acquisition
Package Types
MCP6S91
PDIP, SOIC, MSOP
MCP6S93
MSOP
• Industrial Instrumentation
• Test Equipment
V
1
V
DD
8
7
OUT
V
OUT
V
1
10
9
DD
SCK
• Medical Instrumentation
CH0 2
CH0
CH1
2
3
4
5
SCK
SO
SI
V
3
4
6 SI
REF
8
Block Diagram
V
5 CS
SS
V
7
REF
V
6
CS
VDD
SS
MCP6S92
PDIP, SOIC, MSOP
CH0
V
1
V
DD
8
7
OUT
MUX
CH1
VOUT
SCK
CH0 2
CH1
3
4
6 SI
5
CS
SI
SPI™
Logic
V
SS
CS
SO
RF
SCK
8
Gain
Switches
RG
VREF
VSS
2004 Microchip Technology Inc.
DS21908A-page 1