MCP6S28-ISL Datasheet, PDF (1/42 Pages) Microchip Technology – Single-Ended, Rail-to-Rail I/O, Low Gain PGA

MCP6S21/2/6/8
Single-Ended, Rail-to-Rail I/O, Low Gain PGA
Features
• Multiplexed Inputs: 1, 2, 6 or 8 channels
• 8 Gain Selections:
- +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
Typical Applications
• A/D Converter Driver
• Multiplexed Analog Applications
• Data Acquisition
• Industrial Instrumentation
• Test Equipment
• Medical Instrumentation
Package Types
MCP6S21
PDIP, SOIC, MSOP
MCP6S22
PDIP, SOIC, MSOP
V_OUT 1
8 V_DD V_OUT 1
8 V_DD
CH0 2
7 SCK CH0 2
7 SCK
V_REF 3
6 SI CH1 3
6 SI
V_SS 4
5 CS V_SS 4
5 CS
MCP6S26
PDIP, SOIC, TSSOP
MCP6S28
PDIP, SOIC
V_OUT 1
CH0 2
14 V_DD V_OUT 1
13 SCK CH0 2
16 V_DD
15 SCK
CH1 3
12 SO CH1 3
14 SO
CH2 4
11 SI
CH2 4
13 SI
CH3 5
CH4 6
CH5 7
10 CS
9 V_SS
8 V_REF
CH3 5
CH4 6
CH5 7
CH6 8
12 CS
11 V_SS
10 V_REF
9 CH7
Description
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.
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.
Block Diagram
V_DD
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CS
SI
SO
SCK
MUX
SPI™
Logic
+
-
R_F
Gain ⁸
Switches
R_G
V_OUT
POR
V_SS
V_REF
 2003-2012 Microchip Technology Inc.
DS21117B-page 1