MCP6S21/2/6/8
Single-Ended, Rail-to-Rail I/O, Low Gain PGA
Description
Features
• Multiplexed Inputs: 1, 2, 6 or 8 channels
• 8 Gain Selections:
The Microchip Technology Inc. MCP6S21/2/6/8 are
analog Programmable Gain Amplifiers (PGA). They
can be configured for gains from +1 V/V to +32 V/V and
the input multiplexer can select one of up to eight chan-
nels through an 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)
• Low Offset: ±275 µV (max)
• High Bandwidth: 2 to 12 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 MCP6S21 and the two channel
MCP6S22 are available in 8-pin PDIP, SOIC and
MSOP packages. The six channel MCP6S26 is avail-
able in 14-pin PDIP, SOIC and TSSOP packages. The
eight channel MCP6S28 is available in 16-pin PDIP
and SOIC packages. All parts are fully specified from
-40°C to +85°C.
Typical Applications
• A/D Converter Driver
• Multiplexed Analog Applications
• Data Acquisition
• Industrial Instrumentation
• Test Equipment
Block Diagram
V
DD
• Medical Instrumentation
CH0
CH1
CH2
CH3
CH4
+
-
Package Types
V
OUT
MCP6S21
PDIP, SOIC, MSOP
MCP6S22
PDIP, SOIC, MSOP
MUX
CH5
CH6
V
V
V
V
8
DD
1
8
1
OUT
DD
OUT
R
F
8
CH0 2
7 SCK CH0 2
7 SCK
6 SI
CH7
Gain
Switches
V
3
4
6 SI
CH1 3
REF
CS
SI
SO
SCK
R
G
V
V
SS
5 CS
4
5 CS
SS
SPI™
Logic
MCP6S26
PDIP, SOIC, TSSOP
MCP6S28
PDIP, SOIC
POR
V
V
V
V
1
14
1
16
V
REF
OUT
DD
DD
V
SS
OUT
CH0 2
CH1 3
CH2 4
CH3 5
CH4 6
CH5 7
13 SCK
12 SO
11 SI
CH0 2
CH1 3
CH2 4
15 SCK
14 SO
13 SI
10 CS
CH3 5
CH4 6
12 CS
V
V
V
V
9
8
11
10
9
SS
SS
CH5
7
REF
REF
CH6 8
CH7
2003-2012 Microchip Technology Inc.
DS21117B-page 1