Features Typical Values unless otherwise noted, TA = 25°C Supply voltage 2.7V to 5.5V Supply current 1.8 mA Max gain error 0.15% Max gain drift 16 ppm/°C Min CMRR 110 dB Max offset voltage 10 µV Max offset voltage drift 50 nV/°C GBW (gain = 10) 8 MHz Max non-linearity 100 ppm Operating temperature range −40°C to 125°C Input fault detection SPI or pin configurable modes EMIRR at 1.8GHz 92 dB 14-Pin SOIC and 14-Pin TSSOP Package Description The LMP8358 is a precision programmable-gain instrumentation amplifier in National's LMP precision amplifier family. Its gain can be programmed to 10, 20, 50, 100, 200, 500, or 1000 through an SPI-compatible serial interface or through a parallel interface. Alternatively, its gain can be set to an arbitrary value using two external resistors. The LMP8358 uses patented techniques to measure and continuously correct its input offset voltage, eliminating offset drift over time and temperature and the effect of 1/f noise. Its ground-sensing CMOS input features a high CMRR and low input bias currents. It is capable of sensing differential input voltages in a common-mode range that extends from 100mV below the negative supply to 1.4V below the positive supply, making it an ideal solution for interfacing with ground-referenced sensors, supply-referenced sensor bridges, and any other application requiring precision and long-term stability. Additionally, the LMP8358 includes fault detection circuitry to detect open and shorted inputs and deteriorating connections to the signal source. Other features that make the LMP8358 a versatile solution for many applications are its rail-to-rail output, low input voltage noise and high gain-bandwidth product. Applications Bridge sensor amplifier Thermopile amplifier Portable instrumentation Medical instrumentation Precision low-side current sensing

Typical Application

Typical Application click for larger image Typical Application	Block Diagram click for larger image Block Diagram SOIC-14 / TSSOP-14
Typical Performance click for larger image Gain vs Freq vs COMP, 10X

Parameters Values Gain Adjust Range 40 dB Signal Channel BW 8 MHz Supply Min 2.7 Volt Supply Max 5.5 Volt Gain Control Interface Parallel or Serial Slew Rate 11 Volts/usec Supply Current 2.1 mA PowerWise Rating 2 262 uA/MHz Output Current 31 mA Offset Voltage max, 25C 0.01 mV Max Input Bias Current 1.2 nA Voltage Noise 25 nV/root(Hz) Special Features Diff Input, EMI Hardened, Autozero, Fault Det Function VGA Temperature Min -40 deg C Temperature Max 125 deg C Automotive No PowerWise No

Datasheets

Title		Size	Date	Other Language
	LMP8358 Zero-Drift, Programmable Instrumentation Amplifier with Diagnostics	989 Kbytes	5-May-10

Other Technical Documents

Title		Type	Date
	Going Beyond the Front End (Zero-Drift, Programmable Instrumentation Amplifier with Diagnostics)	Signal Path Designer	2010-05-20
	Bridging the Divide: Designing with DACs (Part 3)	External Article	2010-07-06

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMP8358MA/NOPB RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 583 FARNELL Europe and Asia 215 NEWARK Americas 215	$2.71 each at 1K+ pcs	rail of 55
LMP8358MAX/NOPB RoHS Status	SOIC NARROW	Full production Lead Time: 12 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.71 each at 1K+ pcs	reel of 2500
LMP8358MT/NOPB RoHS Status	TSSOP	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 276 DIGI-KEY Worldwide 17 FARNELL Europe and Asia 130 NEWARK Americas 130	$2.71 each at 1K+ pcs	rail of 94
LMP8358MTX/NOPB RoHS Status	TSSOP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.71 each at 1K+ pcs	reel of 2500

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMP8358.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMP8358 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMP8358MAEVAL/NOPB	Evaluation Board for the LMP8358	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 3	$95.00 each	1
Description: The LMP8358MAEVAL Evaluation Board provides a platform to test the performance of the LMP8358 Zero-Drift, Programmable Instrumentation Amplifier with Diagnostics. This evaluation board is equipped with GPSI-14 interface. National provides software and GPSI-14 compatible USB dongle so that the user may program SPI settings from a PC. Order SPUSI2 USB dongle Download TinyI2CSPI software and personality files LMP8358 Evaluation Board User Guide

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LMP8358MA/NOPB	129.551	SOIC NARROW	14	1	260	Detail	N/A	N/A	NSUZXYTTE# LMP8358 MA
LMP8358MAX/NOPB	129.551	SOIC NARROW	14	1	260	Detail	N/A	N/A	NSUZXYTTE# LMP8358 MA
LMP8358MT/NOPB	53.783	TSSOP	14	1	260	Detail	N/A	N/A	NSUZXYTT LMP835 8MT
LMP8358MTX/NOPB	53.783	TSSOP	14	1	260	Detail	N/A	N/A	NSUZXYTT LMP835 8MT

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMP8358.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMP8358 is located at RoHS Status.

CAD Symbols and Models N/A

Models N/A

LMP8358 Fault Detection Capability Demo Loading video... LMP8358 Easy Detection of Shorts, Open Circuits, and Degraded Source Connections Loading video...

LMP8358 Fault Detection Capability Demo Date: 2010-05-14 Length: 0:06:18 LMP8358 Easy Detection of Shorts, Open Circuits, and Degraded Source Connections Date: 2010-05-26 Length: 0:06:26