AD7176-2
RECOMMENDED FOR NEW DESIGNS24-Bit, 250 kSPS Sigma Delta ADC with 20 µs Settling
- Part Models
- 2
- 1ku List Price
- Starting From $10.89
Part Details
- Fast and flexible output rate—5 SPS to 250 kSPS
- Fast settling time—20 µs
- Channel scan data rate of 50 kSPS/channel
- Performance specifications
- 17 noise free bits at 250 kSPS
- 20 noise free bits at 2.5 kSPS
- 22 noise free bits at 5 SPS
- INL ±2.5 ppm of FSR
- 85 dB rejection of 50 Hz and 60 Hz with 50 ms settling
- User-configurable input channels
- 2 fully differential or 4 pseudo differential
- Crosspoint multiplexer
- On-chip 2.5 V reference (drift 2 ppm/°C)
- Internal oscillator, external crystal, or external clock
- See data sheet fo additional features
The AD7176-2 is a fast settling, highly accurate, high resolution, multiplexed Σ-Δ analog-to-digital converter (ADC) for low bandwidth input signals. Its inputs can be configured as two fully differential or four pseudo differential inputs via the integrated crosspoint multiplexer. An integrated precision, 2.5 V, low drift (2 ppm/°C), band gap internal reference (with an output reference buffer) adds functionality and reduces the external component count.
The maximum channel scan data rate is 50 kSPS/channel (settling time of 20 µs), resulting in fully settled data with 17 noise free bits. User-selectable output data rates range from 5 SPS to 250 kSPS. The resolution increases at lower speeds.
The AD7176-2 offers three key digital filters. The fast settling sinc5 + sinc1 filter maximizes the channel scan rate. The sinc3 filter maximizes the resolution for single-channel, low speed applications. For 50 Hz and 60 Hz environments, the AD7176-2 specific filter minimizes the settling times or maximizes the rejection of the line frequency. These enhanced filters enable simultaneous 50 Hz and 60 Hz rejection with a 27 SPS output data rate (with a settling time of 36 ms).
System offset and gain errors can be corrected on a per channel basis. This per channel configurability extends to the output data rate used for each channel when using a sinc5 + sinc1 filter. All switching of the crosspoint multiplexer is controlled by the ADC and can be configured to automatically control an external multiplexer via the GPIO pins.
The specified operating temperature range is −40°C to +105°C. The AD7176-2 is housed in a 24-lead TSSOP package.
Applications
- Process control: PLC/DCS modules
- Temperature and pressure measurement - Medical and scientific multichannel instrumentation
- Chromatography
Documentation
Data Sheet 1
User Guide 1
Application Note 2
Technical Articles 3
Informational 1
Video 4
Technical Book 1
Tutorial 2
Device Drivers 6
Circuit Note 2
Analog Dialogue 1
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7176-2BRUZ | 24-Lead TSSOP | ||
| AD7176-2BRUZ-RL | 24-Lead TSSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 10, 2021 - 21_0035 Amkor Philippines as an Alternate Site for TSSOP_4.4 |
||
| AD7176-2BRUZ | PRODUCTION | |
| AD7176-2BRUZ-RL | PRODUCTION | |
|
Feb 16, 2016 - 16_0009 Change of MSL Rating for AD7172-2, AD7175-2, AD7176-2 & AD7177-2 TSSOP Devices |
||
| AD7176-2BRUZ | PRODUCTION | |
| AD7176-2BRUZ-RL | PRODUCTION | |
|
Jul 23, 2014 - 13_0241 Qualification of ASE Chungli as an Alternate Assembly Site for Select 16L, 20L and 24L TSSOP Packages |
||
| AD7176-2BRUZ | PRODUCTION | |
| AD7176-2BRUZ-RL | PRODUCTION | |
|
Mar 18, 2014 - 13_0337 AD7176-2 Data Sheet Update |
||
| AD7176-2BRUZ | PRODUCTION | |
| AD7176-2BRUZ-RL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Mbed Support 5
Device Drivers 6
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Dual-Supply Analog Switches and Multiplexers 2 | ||
| ADG1404 | PRODUCTION | 1.8 Ω Maximum On Resistance, ±15 V/12 V/±5 V, 4:1, iCMOS Multiplexer |
| ADG1409 | PRODUCTION | 4 Ω Ron, 4-Channel ±15 V/+12 V/±5 V iCMOS Multiplexer |
| Fully Differential Amplifiers 1 | ||
| AD8475 | PRODUCTION | Precision, Selectable Gain, Fully Differential Funnel Amplifier |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 1 | ||
| AD8656 | PRODUCTION | Low Noise, Precision CMOS Dual Amplifier |
| Series Voltage References 2 | ||
| ADR445 | PRODUCTION | Ultralow Noise, LDO XFET® 5.0V Voltage Reference w/Current Sink and Source |
| ADR4550 | PRODUCTION | Ultra-Low-Noise, High-Accuracy 5.0V Voltage Reference |
| Single-Ended to Differential Amplifiers 1 | ||
| ADA4940-1 | PRODUCTION | Ultralow Power, Low Distortion ADC Driver |
| Standard Digital Isolators 4 | ||
| ADUM3481 | PRODUCTION | Small, 3.75 kV RMS Quad Digital Isolators (3/1 Channel Directionality) |
| ADUM4401 | PRODUCTION |
5 kV RMS Quad-Channel Digital Isolators |
| ADUM3401 | PRODUCTION | Quad-Channel, Digital Isolator, Enhanced System-Level ESD Reliability |
| ADUM1401 | PRODUCTION | Quad-Channel Digital Isolator (3/1 Channel Directionality) |
| Parts | Product Life Cycle | Description |
|---|---|---|
| AD7172-2 | RECOMMENDED FOR NEW DESIGNS | Low Power, 24-Bit, 31.25 kSPS, Sigma-Delta ADC with True Rail-to-Rail Buffers |
| AD7175-2 | RECOMMENDED FOR NEW DESIGNS | 24-Bit, 250 kSPS, Sigma-Delta ADC with 20 µs Settling and True Rail-to-Rail Buffers |
| AD7177-2 | RECOMMENDED FOR NEW DESIGNS | 32-Bit, 10 kSPS, Sigma-Delta ADC with 100 µs Settling and True Rail-to-Rail Buffers |
Tools & Simulations
Virtual Eval - BETA
Virtual Eval is a web application to assist designers in product evaluation of ADCs, DACs, and other ADI products. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, response plots, and more.
Open ToolIBIS Model 1
Design Tool 1
Evaluation Kits
AD7176-2 Evaluation Board
Resources
Software
Reference Designs
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