ADS127L01

AKTIV

1-kanaliger Delta-Sigma-ADC, 24 Bit, 512 kSPS, mit PGA VREF, mit geringem Stromverbrauch und großer

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Datenblatt

document-pdfAcrobat ADS127L01 24-Bit, High-Speed, Wide-Bandwidth Analog-to-Digital Converter datasheet (Rev. B) (Englisch) PDF | HTML

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Alternativen vergleichen

Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung.

ADS127L21

AKTIV

Delta-Sigma-ADC, 24 Bit, 512 kSPS, mit großer Bandbreite und programmierbaren IIR- und FIR-Filtern Custom filters

ADS127L01

AKTIV

Jetzt bestellen

Produktdetails

Resolution (Bits)

24

Sample rate (max) (ksps)

512

Number of input channels

1

Interface type

SPI

Architecture

Delta-Sigma

Input type

Differential

Rating

Catalog

Reference mode

External

Input voltage range (max) (V)

3

Input voltage range (min) (V)

0

Features

Daisy-Chainable, Wideband

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

7

Analog supply voltage (min) (V)

2.7

Analog supply voltage (max) (V)

3.6

SNR (dB)

115.5

Digital supply (min) (V)

1.7

Digital supply (max) (V)

3.6

Resolution (Bits)

24

Sample rate (max) (ksps)

512

Number of input channels

1

Interface type

SPI

Architecture

Delta-Sigma

Input type

Differential

Rating

Catalog

Reference mode

External

Input voltage range (max) (V)

3

Input voltage range (min) (V)

0

Features

Daisy-Chainable, Wideband

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

7

Analog supply voltage (min) (V)

2.7

Analog supply voltage (max) (V)

3.6

SNR (dB)

115.5

Digital supply (min) (V)

1.7

Digital supply (max) (V)

3.6

TQFP (PBS)

32

49 mm² (7 mm × 7 mm)

Data Rates: Up to 512 kSPS
AC + DC Performance:
- Passband: Up to 230 kHz
- SNR: Up to 115.5 dB
- THD: Down to –129 dB
- DC Accuracy:
- Offset Drift: 1.5 µV/°C
- Gain Drift: 0.2 ppm/°C
Operating Modes:
- High-resolution (128 kSPS at 26 mW)
- Low-power (128 kSPS at 15 mW)
- Very-low Power: 105 dB SNR (128 kSPS at 9 mW)
Digital Filter Options:
- Low-latency Filter: Sinc Frequency Response
- Wideband 1 Filter:
  (0.45 to 0.55) × f_DATA Transition Band
- Wideband 2 Filter: (0.40 to 0.50) × f_DATA Transition Band
SPI™ or Frame-Sync Serial Interface
- Daisy-Chain Compatible
Analog Supply: 2.7 V to 3.6 V
Digital Supply: 1.7 V to 3.6 V
Operating Temperature: –40°C to +125°C

Data Rates: Up to 512 kSPS
AC + DC Performance:
- Passband: Up to 230 kHz
- SNR: Up to 115.5 dB
- THD: Down to –129 dB
- DC Accuracy:
- Offset Drift: 1.5 µV/°C
- Gain Drift: 0.2 ppm/°C
Operating Modes:
- High-resolution (128 kSPS at 26 mW)
- Low-power (128 kSPS at 15 mW)
- Very-low Power: 105 dB SNR (128 kSPS at 9 mW)
Digital Filter Options:
- Low-latency Filter: Sinc Frequency Response
- Wideband 1 Filter:
  (0.45 to 0.55) × f_DATA Transition Band
- Wideband 2 Filter: (0.40 to 0.50) × f_DATA Transition Band
SPI™ or Frame-Sync Serial Interface
- Daisy-Chain Compatible
Analog Supply: 2.7 V to 3.6 V
Digital Supply: 1.7 V to 3.6 V
Operating Temperature: –40°C to +125°C

The ADS127L01 is a 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) with data rates up to 512 kSPS. This device offers a unique combination of excellent dc accuracy and outstanding ac performance. The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The integrated decimation filter suppresses modulator out-of-band noise. In addition to al low-latency filter, the ADS127L01 provides multiple Wideband filters with less than ±0.00004 dB of ripple, and an option for –116-dB stop-band attenuation at the Nyquist rate.

Traditionally, industrial delta-sigma ADCs that offer good drift performance use digital filters with large passband droop. As a result, industrial delta-sigma ADCs have limited signal bandwidth and are mostly suited for dc measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specifications are significantly weaker than industrial counterparts. The ADS127L01 combines these converters, providing high-precision industrial measurement with excellent dc and ac specifications over an extended industrial temperature range of –40°C to +125°C.

A variety of operating modes allow for optimization of speed, resolution, and power. A programmable serial interface with one of three options (SPI, frame-sync slave, or frame-sync master) provides convenient interfacing across isolation barriers to microcontrollers or digital signal processors (DSPs).

The ADS127L01 is a 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) with data rates up to 512 kSPS. This device offers a unique combination of excellent dc accuracy and outstanding ac performance. The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The integrated decimation filter suppresses modulator out-of-band noise. In addition to al low-latency filter, the ADS127L01 provides multiple Wideband filters with less than ±0.00004 dB of ripple, and an option for –116-dB stop-band attenuation at the Nyquist rate.

Traditionally, industrial delta-sigma ADCs that offer good drift performance use digital filters with large passband droop. As a result, industrial delta-sigma ADCs have limited signal bandwidth and are mostly suited for dc measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specifications are significantly weaker than industrial counterparts. The ADS127L01 combines these converters, providing high-precision industrial measurement with excellent dc and ac specifications over an extended industrial temperature range of –40°C to +125°C.

A variety of operating modes allow for optimization of speed, resolution, and power. A programmable serial interface with one of three options (SPI, frame-sync slave, or frame-sync master) provides convenient interfacing across isolation barriers to microcontrollers or digital signal processors (DSPs).

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Technische Dokumentation

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Design und Entwicklung

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Evaluierungsplatine

ADS127L01EVM — ADS127L01-Evaluierungsmodul

ADS127L01EVM ist eine Evaluierungsplattform für ADS127L01. ADS127L01 ist ein 24-Bit-Delta-Sigma-Analog-Digital-Wandler (ADC) mit Datenraten von bis zu 512 kSPS. Er bietet eine einzigartige Kombination aus ausgezeichneter DC-Genauigkeit und hervorragender AC-Leistung. Der höherwertige (...)

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