ADS1203 Status: ACTIVE

Current shunt Delta-Sigma Modulator, 10MHz CLK, +/-250mV input, 16-Bit resolution

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Datasheet

Motor Control, Current Measurement, 1-Bit, 10MHz, 2nd-Order, Delta-Sig Modulator (Rev. C) (ads1203.pdf, 756 KB)
09 Jan 2008 Download

	ADS1201	ADS1202	ADS1203	ADS1204	ADS1205	ADS1208
Resolution(Bits)	24	16	16	16	16	16
Sample Rate (max)	1kSPS	40kSPS	40kSPS	40kSPS	40kSPS	40kSPS
Architecture	Delta-Sigma,Modulator	Delta-Sigma,Modulator	Delta-Sigma,Modulator	Delta-Sigma,Modulator	Delta-Sigma,Modulator	Delta-Sigma,Modulator
Power Consumption(Typ)(mW)	25	30	33	122	59	64
SINAD(dB)			85	89	89	81.5
SNR(dB)			85	89	89	82
SFDR(dB)			95	100	100	93
DNL(Max)(+/-LSB)	1	1	1	1	1	1
INL(Max)(+/-LSB)	0.0015%	0.005%	0.001%	0.001%	0.002%	0.0025%
No Missing Codes(Bits)	24	16	16	16	16	16
ENOB(Bits)			16	14.5	14.5	13.2
No. of Supplies	1	1	1	2	2	2
Analog Voltage AV/DD(Min)(V)	4.75	4.75	4.5	4.5	4.5	4.5
Analog Voltage AV/DD(Max)(V)	5.25	5.25	5.5	5.5	5.5	5.5
Logic Voltage DV/DD(Min)(V)	4.75	4.75	4.5	2.7	2.7	2.7
Logic Voltage DV/DD(Max)(V)	5.25	5.25	5.5	5.5	5.5	5.5
Input Configuration Range	Vref	320mV	250mV	Vref	Vref	100mV
Reference Mode	Int and Ext	Int	Int	Int and Ext	Int and Ext	Int and Ext
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Pin/Package	16SOIC	8TSSOP	16QFN,8TSSOP	32QFN	24VQFN	16TSSOP
Comments	frequency: 320 kHz	frequency: 10 MHz
# Input Channels	1	1	1	4	2	1
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS1208: 10MHz Modulator with built in current excitation for Hall sensors
ADS1110: 16-Bit Delta-Sigma ADC with internal reference, PGA and oscillator. I2C Serial Interface
AMC1203: 1-Bit, 10MHz, 2nd-Order, Isolated Delta-Sigma Modulator
TMS320VC5416: Digital Signal Processor
TMS320F2812: 32-Bit Digital Signal Controller with Flash
OPA336: Single-Supply, MicroPower CMOS Operational Amplifiers MicroAmplifier(TM) Series

More Related Products

Product Information

Features

16-Bit Resolution
14-Bit Linearity
±250mV Input Range with Single +5V Supply
1% Internal Reference Voltage
1% Gain Error
Flexible Serial Interface with Four Different Modes
Implemented Twinned Binary Coding as Split-Phase or Manchester Coding for One-Line Interfacing
Operating Temperature Range:
–40°C to +125°C
APPLICATIONS
- Motor Control
- Current Measurement
- Industrial Process Control
- Instrumentation
- Smart Transmitters

All trademarks are the property of their respective owners.

Description

The ADS1203 is a delta-sigma () modulator with a 95dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers or low-level signals. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes. An effective resolution of 14 bits or SNR of 85dB (typical) can be maintained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1203 is designed for use in medium- to high-resolution measurement applications including current measurements, smart transmitters, and industrial process control. The ADS1203 is available in TSSOP-8 and QFN-16 (3x3) packages.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
ADS1203IPWR	ACTIVE	-40 to 85	2.70 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
ADS1203IPWRG4	ACTIVE	-40 to 85	2.70 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
ADS1203IPWT	ACTIVE	-40 to 85	3.00 \| 1ku	TSSOP (PW) \| 8	View	250 \| SMALL T&R
ADS1203IPWTG4	ACTIVE	-40 to 85	3.00 \| 1ku	TSSOP (PW) \| 8	View	250 \| SMALL T&R	Contact TI Distributor or Sales Office
ADS1203IRGTR	ACTIVE	-40 to 85	2.70 \| 1ku	QFN (RGT) \| 16	View	3000 \| LARGE T&R		Purchase Samples
ADS1203IRGTRG4	ACTIVE	-40 to 85	2.70 \| 1ku	QFN (RGT) \| 16	View	3000 \| LARGE T&R		Purchase Samples
ADS1203IRGTT	ACTIVE	-40 to 85	3.00 \| 1ku	QFN (RGT) \| 16	View	250 \| SMALL T&R
ADS1203IRGTTG4	ACTIVE	-40 to 85	3.00 \| 1ku	QFN (RGT) \| 16	View	250 \| SMALL T&R		Contact TI Distributor or Sales Office

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

	TI Inventory Status			Reported Distributor Inventory
ADS1203IPWR	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	None Reported View Distributors
ADS1203IPWRG4	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	None Reported View Distributors
ADS1203IPWT	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	Americas	Rochester Electronics	>1k
				Asia	WPI	68
				Europe	EBV Elektronik	2
ADS1203IPWTG4	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	None Reported View Distributors
ADS1203IRGTR	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	None Reported View Distributors
ADS1203IRGTRG4	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	None Reported View Distributors
ADS1203IRGTT	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	None Reported View Distributors
ADS1203IRGTTG4	As of 10:18 AM GMT, 19 Nov 2008			As of 10:18 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 3 Feb	12 Weeks	None Reported View Distributors
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
ADS1203IPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1203IPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1203IPWT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1203IPWTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ADS1203IRGTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1203IRGTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1203IRGTT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
ADS1203IRGTTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

Motor Control, Current Measurement, 1-Bit, 10MHz, 2nd-Order, Delta-Sig Modulator (Rev. C) (ads1203.pdf, 756 KB)
09 Jan 2008 Download

Application Notes

A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. A) (sbaa147a.htm, 8 KB)
12 Jan 2008 Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Using the ADS1202 Reference Design (slaa186.htm, 8 KB)
19 Nov 2003 Abstract
Clock Divider Circuit for the ADS1202 in Mode 3 Operation (sbaa105.htm, 8 KB)
15 Sep 2003 Abstract
Interfacing the ADS1202 Modltr With a Pulse Transformer in Galvanically Isolated (sbaa096.htm, 8 KB)
02 Jun 2003 Abstract
Combining ADS1202 with FPGA Digital Filter for Current Msrmnt in Motor Cntrl App (sbaa094.htm, 8 KB)
28 Apr 2003 Abstract
Choosing an Optocoupler for the ADS1202 Operating in Mode 1 (sbaa088.htm, 8 KB)
12 Feb 2003 Abstract
Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
04 Oct 2000 Abstract
Analog-to-Digital Converter Grounding Practices Affect System Performance (sbaa052.htm, 8 KB)
02 Oct 2000 Abstract
Principles of Data Acquisition and Conversion (sbaa051.htm, 8 KB)
02 Oct 2000 Abstract
Interleaving Analog-to-Digital Converters (sbaa049.htm, 8 KB)
02 Oct 2000 Abstract
What Designers Should Know About Data Converter Drift (sbaa046.htm, 8 KB)
02 Oct 2000 Abstract
High Speed Data Conversion (sbaa045.htm, 8 KB)
02 Oct 2000 Abstract
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (sbaa006.htm, 8 KB)
27 Sep 2000 Abstract
Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (sbaa005.htm, 8 KB)
27 Sep 2000 Abstract

View Application Notes for Analog to Digital Converters

User Guides

View User Guides for Analog to Digital Converters

White Papers

A New Generation of Hall Sensors Including Delta-Sigma Modulators (slaa286.pdf, 162 KB)
06 Dec 2005 Download

More Literature

View More Literature for Analog to Digital Converters

Reference Designs

Description	Part #	Company
ADS1202 Reference Design	ADS1202REF	Texas Instruments

Tools & Software

Name	Part #	Company	Tool / Software Type
Anti-Aliasing Calculation Tool for A to D Converters	ANTIALIASINGCALC	Texas Instruments	Calculation Utilities
Op Amp to ADC Circuit Topology Calculator	ADC-INPUT-CALC	Texas Instruments	Calculation Utilities

Alternative Products - Are similar to ADS1203
Part #	Name	Comments
AMC1203	1-Bit, 10MHz, 2nd-Order, Isolated Delta-Sigma Modulator	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Similar device with integrated galvanic isolation.
ADS1208	10MHz Modulator with built in current excitation for Hall sensors	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1204	Four Delta-Sigma Modulators, 10MHz CLK, 0-5V Input, 16-Bit Resolution	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1205	Two 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator A-to-D Converter	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1201	High Dynamic Range Delta-Sigma Modulator	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
ADS1202	Current Shunt Delta-Sigma Modulator, 10MHz CLK, +/-250mV Input, 16-Bit Resolution	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
Customers Who Evaluated This Product Also Evaluated...
ADS1208	10MHz Modulator with built in current excitation for Hall sensors	TI customers also evaluated this product.
ADS1110	16-Bit Delta-Sigma ADC with internal reference, PGA and oscillator. I2C Serial Interface	TI customers also evaluated this product.
AMC1203	1-Bit, 10MHz, 2nd-Order, Isolated Delta-Sigma Modulator	TI customers also evaluated this product.
ADS1202	Current Shunt Delta-Sigma Modulator, 10MHz CLK, +/-250mV Input, 16-Bit Resolution	TI customers also evaluated this product.
ADS1204	Four Delta-Sigma Modulators, 10MHz CLK, 0-5V Input, 16-Bit Resolution	TI customers also evaluated this product.

Complementary Products - Can be used with ADS1203
Part #	Name	Product Family	Comments
OPA365	2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier	PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
OPA333	1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier	PRECISION AMPLIFIERS- LOW OFFSET VOLTAGE	OPERATIONAL AMPLIFIER
REF5025	Low Noise, Very Low Drift, Precision Voltage Reference	REFERENCES- SERIES VOLTAGE REFERENCES	SERIES VOLTAGE REFERENCE
AMC1210	4 Channel Digital Filter for ADS120X family of modulators	DATA CONVERTERS- ANALOG TO DIGITAL CONVERTERS	CURRENT SHUNT MONITOR
Customers Who Evaluated This Product Also Evaluated...
TMS320VC5416	Digital Signal Processor	TMS320C5000 DSP PLATFORM-TMS320C54X DSP GENERATION	TI customers also evaluated this product.
TMS320F2812	32-Bit Digital Signal Controller with Flash	C2000™ 32-BIT MICROCONTROLLERS-F281X HIGH SPEED MCU	TI customers also evaluated this product.
OPA336	Single-Supply, MicroPower CMOS Operational Amplifiers MicroAmplifier(TM) Series	PRECISION AMPLIFIERS-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA691	Wideband Current Feedback Operational Amplifier with Disable	HIGH SPEED AMPLIFIERS (GREATER THAN EQUAL TO 50MHZ)-CURRENT FEEDBACK	TI customers also evaluated this product.
TPS65050	6-channel Power Mgmt IC with 2 DC/DCs, 4 LDOs, in 4x4mm QFN	POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER	TI customers also evaluated this product.
TPS63000	96% Buck-Boost Converter with 1.8A Current Switches in 3x3 QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS	TI customers also evaluated this product.