MCP6S28

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(TM))
* Rail-to-Rail Input and Output
* Low Gain Error: ±1% (max)
* Low Offset: ±275 V (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




Application

* A/D Converter Driver
* Multiplexed Analog Applications
* Data Acquisition
* Industrial Instrumentation
* Test Equipment
* Medical Instrumentation




Pinout

Specifications

Parameter Name	Value
Temp Range (°C)	-40°C to +85°C
Vref	Yes
Vos (V)	275
Channels	8
Noise (nV/Hz)	10
Iq Typical (mA)	1.1
Gain Steps	8
-3dB BW (MHz)	2 to 12
Interface	SPI
Operating Voltage Range (V)	2.5 to 5.5

V_DD - V_SS.......................................................................7.0V
All inputs and outputs...................V_SS - 0.3V to V_DD +0.3V
Difference Input voltage.....................................|V_DD - V_SS |
Output Short Circuit Current..................................continuous
Current at Input Pin......................................................±2mA
Current at Output and Supply Pins............................±30 mA
Storage temperature.................................-65°C to +150°C
Junction temperature................................................+150°C
ESD protection on all pins (HBM;MM)................. 2 kV; 200V




Description

The MCP6S21, MCP6S22, MCP6S26, and MCP6S28 Programmable Gain Amplifiers offer 1, 2, 6 or 8 input channels respectively and eight steps of gain. These devices are programmable over an SPI bus and thus add gain control and input channel selection to the embedded control system. This is all achieved in one simple integration that allows for considerable greater bandwidth at a low supply current.

The Microchip Technology Inc. MCP6S28 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.