MCP3551 _ BDTIC a Leading Distributor in China

MCP3551

The Microchip Technology Inc. MCP355X devices are 2.7V to 5.5V low-power, 22-bit delta-sigma A/D converters. The devices offer output noise as low as 2.5 µVrms with a total unadjusted error of less than 10 ppm. The family exhibits less than 6 ppm integral non-linearity (INL) error, 3 µV offset error, and 2 ppm full scale error. The MCP355X devices provide high accuracy and low noise performance for applications where sensor measurements such as pressure, temperature, and humidity are performed. With the internal oscillator and high oversampling rate, minimal external components are required for high accuracy applications. The fully differential analog inputs make it compatible with a wide variety of sensor and measurement applications. The MCP355X devices operate from -40°C to +125°C and are available in the space-saving 8-pin MSOP and SOIC packages.

Features

22-bit ADC with automatic internal offset and gain calibration
Low output noise 2.5 µVrms
3 µV offset error
2 ppm typical full-scale error
6 ppm maximum INL error
Total unadjusted error less than 10 ppm
Sample rate 13.75 sps
No digital filter settling time, single command conversions through 3-wire SPI™ interface
Low conversion current 100 µA typical (VDD = 2.7V) 120 µA typical (VDD = 5.0V)
100 µA typical (VDD = 2.7V)
120 µA typical (VDD = 5.0V)
8-pin MSOP and SOIC packages
Differential inputs with VSS to VDD common mode range
2.7V to 5.5V single supply operation
Extended temperature range: -40°C to +125°C

Parameter

Parameter Name Value	Value
Typical Supply Current (µA) 120	120
Typical INL (ppm) 2	2
Max Sample Rate (samples/sec) 14	14
Input Type 1 Differential	1 Differential
Interface SPI	SPI
Resolution (bits) 22	22
Supply Voltage Range (V) 2.7 to 5.5	2.7 to 5.5

Documents

MCP3550/MCP3551/MCP3553 Data Sheet	Data Sheets	08/07/2014	923KB
AN1007 - Designing with the MCP3551 Delta-Sigma ADC	AppNote	10/06/2005	421KB
AN1007 - Designing with the MCP3551 Delta-Sigma ADC (Japanese)	AppNote	04/06/2006	482KB
AN1030 - Weigh Scale Applications for the MCP3551	AppNote	08/02/2006	1189KB
AN1030 - Weigh Scale Applications for the MCP3551 (Japanese)	AppNote	12/17/2006	804KB
AN1154 - Precision RTD Instrumentation for Temperature Sensing	AppNote	05/06/2013	274KB
AN679 - Temperature Sensing Technologies	AppNote	08/10/1999	177KB
AN687 - Precision Temperature Sensing with RTD Circuits	AppNote	09/26/2008	149KB
AN695 - Interfacing Pressure Sensors to Microchip's Analog Peripherals	AppNote	04/13/2000	230KB
Analog & Interface Guide (Volume 2)	Brochures	10/11/2005	1067KB
Automotive Recommended Product Selector Guide	Brochures	09/16/2014	7598KB
Quick Guide to Microchip Development Tools	Brochures	10/15/2014	11223KB
Signal Chain Design Guide	Brochures	11/10/2012	3229KB
Low Power Analog Solutions	Sell Sheets	05/16/2011	120KB
Analog & Interface Product Selector Guide	Product Line Card	03/21/2016	4116KB
MCP3551 22-Bit Delta-Sigma ADC PICtail Demo Board User's Guide	User Guides	04/20/2006	806KB
MCP355X Tiny Application Sensor Demo Board User's Guide	User Guides	04/21/2006	530KB
MCP355x Demo Board Video	Video	01/08/2009	24170KB

Ordering Information

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
MCP3551-E/MS	8	MSOP	-40C to +125C	TUBE	4.02	3.35	3.05	2.94	2.91
MCP3551-E/SN	8	SOIC	-40C to +125C	TUBE	3.98	3.31	3.01	2.91	2.88
MCP3551T-E/MS	8	MSOP	-40C to +125C	T/R	4.02	3.35	3.05	2.94	2.91
MCP3551T-E/SN	8	SOIC	-40C to +125C	T/R	3.98	3.31	3.01	2.91	2.88

Similar Devices

Product	Resolution (bits)	Max Sample Rate	Input type	Price5K
MCP3421	18	4	1 Differential	$1.99
MCP3422	18	4	2 Differential	$2.08
MCP3423	18	4	2 Differential	$2.25
MCP3424	18	4	4 Differential	$2.83
MCP3425	16	15	1 Differential	$1.57
MCP3426	16	15	2 Differential	$1.89
MCP3427	16	15	2 Differential	$2.04
MCP3428	16	15	4 Differential	$2.57
MCP3550-50	22	13	1 Differential	$2.84
MCP3550-60	22	15	1 Differential	$2.84
MCP3551	22	14	1 Differential	$2.84
MCP3553	22	60	1 Differential	$2.84

RoHS Information

PartNumber	DeviceWeight	ShippingWeight	LeadCount	PackageType	PackageWidth	SolderComposition	JEDECIndicator
MCP3551-E/SN	0.078000	0.160000	8	SOIC	.150In(3.90mm)	Matte Tin	e3
MCP3551T-E/SN	0.078000	0.230303	8	SOIC	.150In(3.90mm)	Matte Tin	e3
MCP3551T-E/MS	0.025600	0.215600	8	MSOP	3x3mm	Matte Tin	e3
MCP3551-E/MS	0.025600	0.070000	8	MSOP	3x3mm	Matte Tin	e3