Datasheet Texas Instruments ADS1148
| Manufacturer | Texas Instruments |
| Series | ADS1148 |
16-Bit 2kSPS 8-Ch ADC With PGA, Reference, and IDAC for Precision Sensor Measurement
Datasheets
ADS114x 16-Bit, 2-kSPS, Analog-to-Digital Converters With Programmable Gain Amplifier (PGA) for Sensor Measurement datasheet
PDF, 2.3 Mb, Revision: G, File published: Aug 11, 2016
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Status
| ADS1148IPW | ADS1148IPWR | ADS1148IRHBR | ADS1148IRHBT | |
|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | Yes | No |
Packaging
| ADS1148IPW | ADS1148IPWR | ADS1148IRHBR | ADS1148IRHBT | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 28 | 28 | 32 | 32 |
| Package Type | PW | PW | RHB | RHB |
| Industry STD Term | TSSOP | TSSOP | VQFN | VQFN |
| JEDEC Code | R-PDSO-G | R-PDSO-G | S-PQFP-N | S-PQFP-N |
| Package QTY | 50 | 2000 | 3000 | 250 |
| Carrier | TUBE | LARGE T&R | LARGE T&R | SMALL T&R |
| Device Marking | ADS1148 | ADS1148 | ADS | ADS |
| Width (mm) | 4.4 | 4.4 | 5 | 5 |
| Length (mm) | 9.7 | 9.7 | 5 | 5 |
| Thickness (mm) | 1 | 1 | .9 | .9 |
| Pitch (mm) | .65 | .65 | .5 | .5 |
| Max Height (mm) | 1.2 | 1.2 | 1 | 1 |
| Mechanical Data | Download | Download | Download | Download |
Parametrics
| Parameters / Models | ADS1148IPW | ADS1148IPWR | ADS1148IRHBR | ADS1148IRHBT |
|---|---|---|---|---|
| # Input Channels | 8 | 8 | 8 | 8 |
| Analog Voltage AVDD(Max), V | 5.25 | 5.25 | 5.25 | 5.25 |
| Analog Voltage AVDD(Min), V | 2.7 | 2.7 | 2.7 | 2.7 |
| Architecture | Delta-Sigma | Delta-Sigma | Delta-Sigma | Delta-Sigma |
| Digital Supply(Max), V | 5.25 | 5.25 | 5.25 | 5.25 |
| Digital Supply(Min), V | 2.7 | 2.7 | 2.7 | 2.7 |
| INL(Max), +/-LSB | 1 | 1 | 1 | 1 |
| Input Range(Max), V | 2.125, 4.25 | 2.125, 4.25 | 2.125, 4.25 | 2.125, 4.25 |
| Input Range(Min), V | -2.125, 0 | -2.125, 0 | -2.125, 0 | -2.125, 0 |
| Input Type | Differential,Single-Ended | Differential,Single-Ended | Differential,Single-Ended | Differential,Single-Ended |
| Integrated Features | 50/60 Hz Rejection,Excitation Current Sources (iDACs),GPIO,Oscillator,PGA,Temp Sensor | 50/60 Hz Rejection,Excitation Current Sources (iDACs),GPIO,Oscillator,PGA,Temp Sensor | 50/60 Hz Rejection,Excitation Current Sources (iDACs),GPIO,Oscillator,PGA,Temp Sensor | 50/60 Hz Rejection,Excitation Current Sources (iDACs),GPIO,Oscillator,PGA,Temp Sensor |
| Interface | SPI | SPI | SPI | SPI |
| Multi-Channel Configuration | Multiplexed | Multiplexed | Multiplexed | Multiplexed |
| Operating Temperature Range, C | -40 to 105 | -40 to 105 | -40 to 105 | -40 to 105 |
| Package Group | TSSOP | TSSOP | VQFN | VQFN |
| Package Size: mm2:W x L, PKG | 28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP) | 28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP) | 32VQFN: 25 mm2: 5 x 5(VQFN) | 32VQFN: 25 mm2: 5 x 5(VQFN) |
| Power Consumption(Typ), mW | 2.3 | 2.3 | 2.3 | 2.3 |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Reference Mode | Ext,Int | Ext,Int | Ext,Int | Ext,Int |
| Resolution, Bits | 16 | 16 | 16 | 16 |
| Sample Rate (max), SPS | 2kSPS | 2kSPS | 2kSPS | 2kSPS |
| Sample Rate(Max), MSPS | 0.002 | 0.002 | 0.002 | 0.002 |
Eco Plan
| ADS1148IPW | ADS1148IPWR | ADS1148IRHBR | ADS1148IRHBT | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Application Notes
- RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248PDF, 563 Kb, File published: Mar 13, 2013
The ADS1148 and ADS1248 family of devices are highly integrated delta-sigma (ΔΣ) converters that areoptimized for the measurement of temperature sensors including resistance temperature detectors(RTDs) thermocouples and thermistors. In a typical RTD measurement application the ADS1148 andADS1248 are configured in a ratiometric topology using the built-in IDAC current sources feeding thro - Example Temperature Measurement Applications Using the ADS1247 and ADS1248 (Rev. B)PDF, 189 Kb, Revision: B, File published: May 9, 2016
This document discusses the use of the ADS1247 and ADS1248 precision analog-to-digital converters (ADCs) together with a resistive temperature device (RTD) and thermocouple to measure temperature. Included are detailed examples of the most common configurations of a two-wire RTD a three-wire RTD a four-wire RTD and a thermocouple with cold junction compensation. This document provides sufficien - Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)PDF, 69 Kb, Revision: A, File published: May 18, 2015
- A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)PDF, 425 Kb, Revision: B, File published: Oct 9, 2011
This glossary is a collection of the definitions of Texas Instruments' Delta-Sigma (О”ОЈ), successive approximation register (SAR), and pipeline analog-to-digital (A/D) converter specifications and performance characteristics. Although there is a considerable amount of detail in this document, the product data sheet for a particular product specification is the best and final reference. - Principles of Data Acquisition and Conversion (Rev. A)PDF, 132 Kb, Revision: A, File published: Apr 16, 2015
Model Line
Series: ADS1148 (4)
Manufacturer's Classification
- Semiconductors> Data Converters> Analog-to-Digital Converters (ADCs)> Precision ADCs (<=10MSPS)
