Build with ADS1114 — Datasheet Specs & AI Design Help

00 — Overview

What the ADS1114 does

The ADS111x family comprises ultra-small, low-power, 16-bit analog-to-digital converters compatible with the I2C interface. This series includes the ADS1113, ADS1114, and ADS1115, which operate across a wide supply range of 2.0V to 5.5V. These devices consume only 150μA in continuous-conversion mode and support programmable data rates from 8SPS to 860SPS. They feature an internal low-drift voltage reference and oscillator, with the ADS1114 and ADS1115 also including a programmable gain amplifier and digital comparator. Engineers typically utilize these converters for portable instrumentation, battery monitoring, temperature measurement systems, and factory automation applications requiring precise sensor data acquisition.

Next step

Start building with ADS1114 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for ADS1114
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	150 µA	200 µA	Operating; TA = 25°C; ivdd; POWER-SUPPLY	TI datasheet, p. 6 — 5.5 Electrical Characteristics (continued)
cmrr	105 dB	—	—	At DC, FSR = ±0.256V; cmrr; SYSTEM PERFORMANCE	TI datasheet, p. 5 — 5.5 Electrical Characteristics
operating temperature	-40 °C	—	125 °C	TEMPERATURE	TI datasheet, p. 4 — 5.3 Recommended Operating Conditions
power dissipation	—	900 µW	—	VDD = 5.0V; pd; POWER-SUPPLY	TI datasheet, p. 6 — 5.5 Electrical Characteristics (continued)
adc resolution	—	16 bit	—		TI datasheet, p. 3 — Device Comparison Table
output voltage low	—	150 mV	400 mV	IOL = 3mA; vol; DIGITAL INPUT/OUTPUT	TI datasheet, p. 5 — 5.5 Electrical Characteristics
sample rate	—	860 Hz	—		TI datasheet, p. 3 — Device Comparison Table
channel count	—	1	—		TI datasheet, p. 3 — Device Comparison Table

02 — Alternatives

Closest matches to ADS1114

ADS1118 1.5× lower supply voltage range, 1.3× higher output voltage low, similar adc resolution

ADS1110A0IDBVR 10.0× lower quiescent current, 3.6× lower sample rate, 2.7× higher output voltage low

ADS1013 3.8× higher sample rate, 3.8× lower settling time, 1.3× lower adc resolution

MCP3421 3.6× lower sample rate, 3.3× higher rise time, 2.7× higher output voltage low

ES8311 1.7× lower supply voltage range, 1.5× higher adc resolution, 1.3× lower operating temperature

ES8388 1.9× lower operating temperature, 1.7× lower supply voltage range, 1.5× higher adc resolution

CS5530-IS 4.5× higher sample rate, 3.4× higher fall time, 3.4× higher rise time

ADS1100 10.0× lower quiescent current, 6.7× lower sample rate, 2.7× higher output voltage low

03 — FAQ

Frequently asked questions

What is the ADC resolution of the ADS1114?

The ADC resolution is 16 bit.

How many channels does the ADS1114 have?

The ADS1114 has 1 channel.

What is the CMRR at DC with an FSR of ±0.256V?

The CMRR is 105 dB at DC with an FSR of ±0.256V.

What is the maximum operating temperature of the ADS1114?

The maximum operating temperature is 125 °C under TEMPERATURE conditions.

What is the maximum output voltage low for the ADS1114 digital input/output when IOL = 3mA?

The output voltage low is 150 mV when IOL = 3mA.

What is the power dissipation of the ADS1114 when VDD = 5.0V, pd, and POWER-SUPPLY?

The power dissipation is 900 µW.

What is the quiescent current of the ADS1114 during operation at TA = 25°C with ivdd POWER-SUPPLY?

The quiescent current is 150 µA.

What is the maximum sample rate of the ADS1114?

The maximum sample rate is 860 Hz.