ADS1114 16-Bit 860SPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Vref, Comparator, and I2C | TI.com

ADS1114 (ACTIVE)

16-Bit 860SPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Vref, Comparator, and I2C

 

Description

The ADS1113, ADS1114, and ADS1115 devices (ADS111x) are precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in an ultra-small, leadless, X2QFN-10 package, and a VSSOP-10 package. The ADS111x devices incorporate a low-drift voltage reference and an oscillator. The ADS1114 and ADS1115 also incorporate a programmable gain amplifier (PGA) and a digital comparator. These features, along with a wide operating supply range, make the ADS111x well suited for power- and space-constrained, sensor measurement applications.

The ADS111x perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing precise large- and small-signal measurements. The ADS1115 features an input multiplexer (MUX) that allows two differential or four single-ended input measurements. Use the digital comparator in the ADS1114 and ADS1115 for under- and overvoltage detection.

The ADS111x operate in either continuous-conversion mode or single-shot mode. The devices are automatically powered down after one conversion in single-shot mode; therefore, power consumption is significantly reduced during idle periods.

Features

  • Ultra-Small X2QFN Package:
    2 mm × 1.5 mm × 0.4 mm
  • Wide Supply Range: 2.0 V to 5.5 V
  • Low Current Consumption: 150 µA
    (Continuous-Conversion Mode)
  • Programmable Data Rate:
    8 SPS to 860 SPS
  • Single-Cycle Settling
  • Internal Low-Drift Voltage Reference
  • Internal Oscillator
  • I2C Interface: Four Pin-Selectable Addresses
  • Four Single-Ended or Two Differential Inputs (ADS1115)
  • Programmable Comparator (ADS1114 and ADS1115)
  • Operating Temperature Range:
    –40°C to +125°C

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Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
Resolution (Bits)
Sample Rate (Max) (kSPS)
Number of input channels
Interface
Operating Temperature Range (C)
Package Group
Approx. Price (US$)
Power Consumption (Typ) (mW)
Package Size: mm2:W x L (PKG)
Architecture
Input Type
Multi-Channel Configuration
Reference Mode
Features
Input Range (Max) (V)
Input Range (Min) (V)
Analog Voltage AVDD (Min) (V)
Analog Voltage AVDD (Max) (V)
Digital Supply (Min) (V)
Digital Supply (Max) (V)
INL (Max) (+/-LSB)
Rating
ADS1114 ADS1113 ADS1115 ADS1118 ADS1119 ADS112C04
16     16     16     16     16     16    
0.86     0.86     0.86     0.86     1     4    
1     1     4     4     4     4    
I2C     I2C     I2C     SPI     I2C     I2C    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
VSSOP | 10
X2QFN | 10    
VSSOP | 10
X2QFN | 10    
VSSOP | 10
X2QFN | 10    
VSSOP | 10
X2QFN | 10    
TSSOP | 16
WQFN | 16    
TSSOP | 16
WQFN | 16    
2.15 | 1ku     1.95 | 1ku     2.30 | 1ku     2.30 | 1ku     2.30 | 1ku     3.15 | 1ku    
0.3     0.3     0.3     0.3     1     1.4    
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)
10X2QFN: 3 mm2: 2 x 1.5 (X2QFN | 10)    
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)
10X2QFN: 3 mm2: 2 x 1.5 (X2QFN | 10)    
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)
10X2QFN: 3 mm2: 2 x 1.5 (X2QFN | 10)    
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)
10X2QFN: 3 mm2: 2 x 1.5 (X2QFN | 10)    
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma     Delta-Sigma    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
Differential
Single-Ended    
N/A     N/A     Multiplexed     Multiplexed     Multiplexed     Multiplexed    
Int     Int     Int     Int     Ext
Int    
Ext
Int    
Comparator
Oscillator
PGA
Small Size    
Oscillator
Small Size    
Comparator
Oscillator
PGA    
Oscillator
PGA
Temp Sensor
Small Size    
50/60 Hz Rejection
Oscillator
PGA    
50/60 Hz Rejection
Excitation Current Sources (iDACs)
Oscillator
PGA
Temp Sensor
Small Size    
5.5     5.5     5.5     5.5     5.5     2.85
5.6    
0     0     0     0     0     -2.85
0    
2     2     2     2     2.3     -2.5
2.3    
5.5     5.5     5.5     5.5     5.5     2.5
5.5    
2     2     2     2     2.3     -2.5
2.3    
5.5     5.5     5.5     5.5     5.5     2.5
5.5    
1     1     1