ADS8866 16-Bit, 100-kSPS, Serial Interface, microPower, Miniature, Single-Ended Input, SAR Analog-to-Digital | TI.com

ADS8866 (ACTIVE)

16-Bit, 100-kSPS, Serial Interface, microPower, Miniature, Single-Ended Input, SAR Analog-to-Digital

 

Description

The ADS8866 is a 16-bit, 100-kSPS, single-ended input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD).

The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices.

The device supports unipolar single-ended analog inputs in the range of –0.1 V to VREF + 0.1 V.

Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8866 excellent for lower-speed applications.

Features

  • Sample Rate: 100 kHz
  • No Latency Output
  • Unipolar, Single-Ended Input Range:
    0 to +VREF
  • SPI™-Compatible Serial Interface with
    Daisy-Chain Option
  • Excellent AC and DC Performance:
    • SNR: 93 dB, THD: –108 dB
    • INL: ±1.0 LSB (typ), ±2.0 LSB (max)
    • DNL: ±1.0 LSB (max), 16-Bit NMC
  • Wide Operating Range:
    • AVDD: 2.7 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V
      (Independent of AVDD)
    • REF: 2.5 V to 5 V (Independent of AVDD)
    • Operating Temperature: –40°C to +85°C
  • Low-Power Dissipation:
    • 0.7 mW at 100 kSPS
    • 70 µW at 10 kSPS
  • Power-Down Current (AVDD): 50 nA
  • Full-Scale Step Settling to 16 Bits: 1200 ns
  • Packages: MSOP-10 and SON-10

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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)
SINAD (dB)
SNR (dB)
THD (Typ) (dB)
Rating
ADS8866
16    
100    
1    
SPI    
-40 to 85    
VSON | 10
VSSOP | 10    
1.95 | 1ku    
0.7    
10VSON: 9 mm2: 3 x 3 (VSON | 10)
10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
SAR    
Pseudo-Differential
Single-Ended    
   
Ext    
Daisy-Chainable
Oscillator
Small Size    
5    
0    
2.7    
3.6    
1.65    
3.6    
2    
92.9    
93    
-108    
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