ADS1672 Status: ACTIVE

High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC

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Datasheet

625kSPS, 24-Bit Analog-to-Digital Converter (Rev. B) (ads1672.pdf, 1105 KB)
05 Nov 2008 Download

	ADS1271	ADS1672
Resolution(Bits)	24	24
Sample Rate (max)	105kSPS	625
Architecture	Delta-Sigma	Delta Sigma
Power Consumption(Typ)(mW)	92	350
SINAD(dB)		105
SNR(dB)	109	105
SNR(Typ)(dB)		105
SFDR(dB)	-108	115
DNL(Max)(+/-LSB)	1	1
INL(Max)(+/-LSB)	0.0006%	2
No Missing Codes(Bits)	24	24
ENOB(Bits)		19.2
No. of Supplies	2	2
Analog Voltage AV/DD(Min)(V)	4.75	4.75
Analog Voltage AV/DD(Max)(V)	5.25	5.25
Logic Voltage DV/DD(Min)(V)	1.65	2.7
Logic Voltage DV/DD(Max)(V)	3.6	3.3
Input Configuration Range	1.06Vref	+/-Vref
Reference Mode	Ext	Ext
Rating	Catalog	Catalog
Pin/Package	16TSSOP	64TQFP
# Input Channels	1	1
	Samples	Samples
	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

ADS1271: 24-Bit, 105kSPS Industrial Delta-Sigma ADC
ADS1281: High Resolution 24-Bit Analog-to Digital Converter
ADS1282: Ultra High Resolution Delta Sigma ADC with PGA for Seismic and Energy Exploration
PGA308: Single Supply, Auto-Zero Sensor Amplifier w/Programmable Gain & Offset

Product Information

Features

AC Performance:
107dB of Dynamic Range at 625kSPS
115.5dB of Dynamic Range at 78kSPS
-115dB THD
DC Accuracy:
3ppm INL
2µV/°C Offset Drift
2ppm/°C Gain Drift
Programmable Digital Filter with User-Selectable Path:
- Low-Latency: Completely settles in 5.5µs
- Wide-Bandwidth: 305kHz BW with flat passband
Flexible Read-Only Serial Interface:
- Standard CMOS
- Serialized LVDS
Easy Conversion Control with START Pin
Out-of-Range Detection
Supply: Analog +5V, Digital +3V
Power: 350mW
APPLICATIONS
- Automated Test Equipment
- Vibration Analysis
- Sonar
- Test and Measurement

All other trademarks are the property of their respective owners

Description

The ADS1672 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma (ΔΣ) architecture, it operates at speeds up to 625kSPS with outstanding ac performance and dc accuracy.

The ADS1672 ADC is comprised of a low-drift, chopper-stabilized modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: low-latency or wide-bandwidth. The low-latency filter settles quickly in one cycle, for applications with large instantaneous changes, such as a multiplexer. The wide-bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than 0.001dB, stop band attenuation of 115dB, and a bandwidth of 305kHz.

The ADS1672 is controlled through I/O pins—there are no registers to program. A dedicated START pin allows for direct control of conversions: toggle the START pin to begin a conversion, and then retrieve the output data. The flexible serial interface supports data readback with either standard CMOS and LVDS logic levels, allowing the ADS1672 to directly connect to a wide range of microcontrollers, digital signal processors (DSPs), or field-programmable grid arrays (FPGAs).

The ADS1672 operates from an analog supply of 5V and digital supply of 3V, and dissipates 350mW of power. When not in use, the PDWN pin can be used to power down all device circuitry. The device is fully specified over the industrial temperature range and is offered in a TQFP-64 package.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Samples
ADS1672IPAG	ACTIVE	-40 to 85	11.75 \| 1ku	TQFP (PAG) \| 64	View	160 \| JEDEC TRAY (5+1)
ADS1672IPAGG4	ACTIVE	-40 to 85	11.75 \| 1ku	TQFP (PAG) \| 64	View	160 \| JEDEC TRAY (5+1)
ADS1672IPAGR	ACTIVE	-40 to 85	11.75 \| 1ku	TQFP (PAG) \| 64	View	1500 \| LARGE T&R	Purchase Samples
ADS1672IPAGRG4	ACTIVE	-40 to 85	11.75 \| 1ku	TQFP (PAG) \| 64	View	1500 \| LARGE T&R	Purchase Samples

* 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
ADS1672IPAG	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*	147 \| 12 Dec	6 Weeks	Americas	DigiKey	133
		>10k \| 29 Dec			Mouser Electronics	798
					Newark	160
ADS1672IPAGG4	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*	147 \| 12 Dec	6 Weeks	None Reported View Distributors
	0*	>10k \| 29 Dec	6 Weeks
ADS1672IPAGR	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*	1035 \| 19 Nov	6 Weeks	None Reported View Distributors
	0*	>10k \| 29 Dec	6 Weeks
ADS1672IPAGRG4	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*	1035 \| 19 Nov	6 Weeks	None Reported View Distributors
	0*	>10k \| 29 Dec	6 Weeks
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
ADS1672IPAG	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View
ADS1672IPAGG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View
ADS1672IPAGR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View
ADS1672IPAGRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	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

625kSPS, 24-Bit Analog-to-Digital Converter (Rev. B) (ads1672.pdf, 1105 KB)
05 Nov 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
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

View Application Notes for Analog to Digital Converters

User Guides

View User Guides for Analog to Digital Converters

Simulation Models

IBIS Model
- ADS1672 IBIS Model (sbac066.ibs, 62 KB)
  08 Oct 2008 ibis

More Literature

View More Literature for Analog to Digital Converters

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 ADS1672
Part #	Name	Comments
ADS1271	24-Bit, 105kSPS Industrial Delta-Sigma ADC	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. The ADS1271 offer lower bandwidth at a lower cost to the customer.
ADS1281	High Resolution 24-Bit Analog-to Digital Converter	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. This device offers best in class performance and has similiar flexible digital filter options.
Customers Who Evaluated This Product Also Evaluated...
ADS1271	24-Bit, 105kSPS Industrial Delta-Sigma ADC	TI customers also evaluated this product.
ADS1281	High Resolution 24-Bit Analog-to Digital Converter	TI customers also evaluated this product.
ADS1282	Ultra High Resolution Delta Sigma ADC with PGA for Seismic and Energy Exploration	TI customers also evaluated this product.

Complementary Products - Can be used with ADS1672
Part #	Name	Product Family	Comments
THS4520	Rail-to-Rail Output Wideband Fully Differential Amplifier	OPERATIONAL AMPLIFIERS- FULLY DIFFERENTIAL AMPLIFIERS	Input Amp
OPA211	1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package	PRECISION AMPLIFIERS- LOW NOISE	Reference Buffer
REF5030	Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE	REFERENCES- SERIES VOLTAGE REFERENCES	Reference
Customers Who Evaluated This Product Also Evaluated...
PGA308	Single Supply, Auto-Zero Sensor Amplifier w/Programmable Gain & Offset	SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTERS-SENSOR CONDITIONING	TI customers also evaluated this product.

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ADS1672 Status: ACTIVE

High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC

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