ADS112U04

AKTIV

16-Bit, 2-kSPS, 4-Kanal, niedriger Stromverbrauch, kompakter Delta-Sigma-ADC mit PGA, VREF, 2x IDACs

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Datenblatt

document-pdfAcrobat ADS112U04 16-Bit, 4-Channel, 2-kSPS, Delta-Sigma ADC With UART Interface datasheet (Rev. A) (Englisch) PDF | HTML

ADS112U04

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Resolution (Bits)

16

Sample rate (max) (ksps)

2

Number of input channels

4

Interface type

UART

Architecture

Delta-Sigma

Input type

Differential, Single-ended

Multichannel configuration

Multiplexed

Rating

Catalog

Reference mode

External, Internal

Input voltage range (max) (V)

2.85, 5.6

Input voltage range (min) (V)

-2.85, 0

Features

50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Small Size, Temp Sensor

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

1.4

Analog supply voltage (min) (V)

2.3

Analog supply voltage (max) (V)

5.5

Digital supply (min) (V)

2.3

Digital supply (max) (V)

5.5

Resolution (Bits)

16

Sample rate (max) (ksps)

2

Number of input channels

4

Interface type

UART

Architecture

Delta-Sigma

Input type

Differential, Single-ended

Multichannel configuration

Multiplexed

Rating

Catalog

Reference mode

External, Internal

Input voltage range (max) (V)

2.85, 5.6

Input voltage range (min) (V)

-2.85, 0

Features

50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Small Size, Temp Sensor

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

1.4

Analog supply voltage (min) (V)

2.3

Analog supply voltage (max) (V)

5.5

Digital supply (min) (V)

2.3

Digital supply (max) (V)

5.5

TSSOP (PW)

16

32 mm² (5 mm × 6.4 mm)

WQFN (RTE)

16

9 mm² (3 mm × 3 mm)

Current Consumption as Low as 315 µA (typ)
Wide Supply Range: 2.3 V to 5.5 V
Programmable Gain: 1 to 128
Programmable Data Rates: Up to 2 kSPS
16-Bit, Noise-Free Resolution at 20 SPS
Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital Filter
Two Differential or Four Single-Ended Inputs
Dual-Matched Programmable Current Sources:
10 µA to 1.5 mA
Internal 2.048-V Reference: 5 ppm/°C (typ) Drift
Internal 2% Accurate Oscillator
Internal Temperature Sensor:
0.5°C (typ) Accuracy
Three General-Purpose Inputs/Outputs
2-Wire UART Compatible Interface (8-N-1 Format) With Baud Rates up to 120 kBaud and
Auto-Baud-Rate Detection
Package: 3.0-mm × 3.0-mm × 0.75-mm WQFN

Current Consumption as Low as 315 µA (typ)
Wide Supply Range: 2.3 V to 5.5 V
Programmable Gain: 1 to 128
Programmable Data Rates: Up to 2 kSPS
16-Bit, Noise-Free Resolution at 20 SPS
Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital Filter
Two Differential or Four Single-Ended Inputs
Dual-Matched Programmable Current Sources:
10 µA to 1.5 mA
Internal 2.048-V Reference: 5 ppm/°C (typ) Drift
Internal 2% Accurate Oscillator
Internal Temperature Sensor:
0.5°C (typ) Accuracy
Three General-Purpose Inputs/Outputs
2-Wire UART Compatible Interface (8-N-1 Format) With Baud Rates up to 120 kBaud and
Auto-Baud-Rate Detection
Package: 3.0-mm × 3.0-mm × 0.75-mm WQFN

The ADS112U04 is a precision, 16-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor.

The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS112U04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors.

The ADS112U04 features a 2-wire, UART-compatible interface. In applications that require galvanic isolation this universal asynchronous receiver/transmitter (UART) interface minimizes the number of digital isolation channels, thus saving cost, board space, and power.

The ADS112U04 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of –40°C to +125°C.

The ADS112U04 is a precision, 16-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor.

The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS112U04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors.

The ADS112U04 features a 2-wire, UART-compatible interface. In applications that require galvanic isolation this universal asynchronous receiver/transmitter (UART) interface minimizes the number of digital isolation channels, thus saving cost, board space, and power.

The ADS112U04 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of –40°C to +125°C.

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Technische Dokumentation

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Design und Entwicklung

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Evaluierungsplatine

ADS112U04EVM — ADS112U04-Evaluierungsmodul

Das ADS112U04-Evaluierungsmodul (EVM) ist eine Plattform zur Evaluierung des Analog-Digital-Wandlers (ADC) ADS112U04. Das ADS112U04 ist ein Delta-Sigma-ADC mit 16 Bit, 2 kSPS, 4 Kanälen, geringem Stromverbrauch und einer UART-Schnittstelle für Sensormessungs- und Prozesssteuerungsanwendungen. Der (...)

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