ADS1118
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the ADS1118 does
The ADS1118 is a precision, low-power, 16-bit analog-to-digital converter available in X2QFN-10 and VSSOP-10 packages. It operates on a wide supply range of 2 V to 5.5 V while consuming only 150 μA in continuous mode. The device supports data rates up to 860 SPS with a single-cycle settling time and includes an internal low-drift voltage reference and a high-accuracy temperature sensor with 0.5°C maximum error. An internal programmable gain amplifier and input multiplexer allow measurement of two differential or four single-ended signals. Engineers typically use this component for temperature measurement, thermocouple cold-junction compensation, and portable instrumentation applications.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 150 µA | 200 µA | Operating, TA = 25°C; ivdd; Power Supply | TI datasheet, p. 8 — Electrical Characteristics (continued) |
| supply voltage range | 2 V | — | 5.5 V | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions | |
| cmrr | 105 dB | — | — | At DC, FSR = ±0.256 V; common; SYSTEM PERFORMANCE | TI datasheet, p. 7 — 7.5 Electrical Characteristics |
| operating temperature | -40 °C | — | 125 °C | t; TEMPERATURE RANGE | TI datasheet, p. 6 — 7.3 Recommended Operating Conditions |
| power dissipation | — | 900 µW | — | VDD = 5 V; pd; Power Supply | TI datasheet, p. 8 — Electrical Characteristics (continued) |
| propagation delay | — | — | 100 ns | DOUT load = 20 pF || 100 k\Omegato GND; tcsdoz{cs}; Over operating ambient temperature range (unless otherwise noted) | TI datasheet, p. 9 — Over operating ambient temperature range (unless otherwise noted) |
| adc resolution | — | 16 bit | — | TI datasheet, p. 5 — 5 Device Comparison Table | |
| output voltage high | 800 mV | — | — | IOH = 1 mA; voh; Digital Inputs/Outputs | TI datasheet, p. 8 — Electrical Characteristics (continued) |
| output voltage low | — | — | 200 mV | IOL = 1 mA; vol; Digital Inputs/Outputs | TI datasheet, p. 8 — Electrical Characteristics (continued) |
| channel count | — | 2 | — | TI datasheet, p. 5 — 5 Device Comparison Table |
Closest matches to ADS1118
Frequently asked questions
What is the ADC resolution of the ADS1118?
The ADC resolution is 16 bit.
How many differential input channels does the ADS1118 support?
The ADS1118 supports 2 differential input channels.
What is the CMRR at DC with FSR = ±0.256 V?
The CMRR is 105 dB at DC with FSR = ±0.256 V.
What is the maximum operating temperature for the ADS1118?
The maximum operating temperature is 125 °C at t; TEMPERATURE RANGE.
What is the output voltage high (voh) for the Digital Inputs/Outputs when IOH = 1 mA?
The output voltage high is 800 mV.
What is the maximum output voltage low (VOL) for the ADS1118 Digital Inputs/Outputs when IOL = 1 mA?
The output voltage low is 200 mV.
What is the power dissipation of the ADS1118 when VDD = 5 V and pd; Power Supply?
The power dissipation is 900 µW.
What is the propagation delay of the ADS1118?
The propagation delay is 100 ns with a DOUT load of 20 pF || 100 kOhm to GND, tcsdoz{cs}, over the operating ambient temperature range.
What is the quiescent current of the ADS1118 when operating at TA = 25°C with the IVDD power supply?
The quiescent current is 150 µA.
What is the maximum supply voltage for the ADS1118?
The maximum supply voltage is 5.5 V.