ADS8405 16-Bit 1.25 MSPS Unipolar Input Micro Power Sampling ADC | TI.com

ADS8405 (ACTIVE)

16-Bit 1.25 MSPS Unipolar Input Micro Power Sampling ADC

 

Description

The ADS8405 is a 16-bit, 1.25-MHz A/D converter with an internal 4.096-V reference. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8405 offers a full 16-bit interface and an 8-bit option where data is read using two 8-bit read cycles if necessary.

The ADS8405 has a unipolar pseudo-differential input. It is available in a 48-lead TQFP package and is characterized over the industrial –40°C to 85°C temperature range.

Features

  • Unipolar Pseudo-Differential Input, 0 V to Vref
  • 16-Bit NMC at 1.25 MSPS
  • ±2 LSB INL Max, -1/+1.5 LSB DNL
  • 86 dB SNR, -90 dB THD at 100 kHz Input
  • Zero Latency
  • Internal 4.096-V Reference
  • High-Speed Parallel Interface
  • Single 5-V Analog Supply
  • Wide I/O Supply: 2.7 V to 5.25 V
  • Low Power: 155 mW at 1.25 MHz Typ
  • Pin Compatible With ADS8411/8401
  • 48-Pin TQFP Package
  • APPLICATIONS
    • DWDM
    • Instrumentation
    • High-Speed, High-Resolution, Zero Latency Data Acquisition Systems
    • Transducer Interface
    • Medical Instruments
    • Communications

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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
ADS8405
16    
1250    
1    
Parallel    
-40 to 85    
TQFP | 48    
17.65 | 1ku    
155    
48TQFP: 81 mm2: 9 x 9 (TQFP | 48)    
SAR    
Pseudo-Differential
Single-Ended    
   
Ext
Int    
Oscillator    
4.2    
0    
4.75    
5.25    
2.7    
5.25    
2    
85    
86    
-90    
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