7.6 Bit, 1/2/4 Channel, 5/2.5/1.25 GSPS A/D with buffered inputs and serial data outputs - LM97600

LM97600 (ACTIVE)

7.6 Bit, 1/2/4 Channel, 5/2.5/1.25 GSPS A/D with buffered inputs and serial data outputs

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Description

The LM97600 is a single/dual/quad, low power, high performance SiGe BiCMOS analog-to-digital converter that digitizes signals at sampling rates up to 5.0/2.5/1.25 GSPS. Consuming a typical 3.1 Watts at 5 GSPS from 1.2 and 2.5 Volt dual supplies, this device is ensured to have no missing codes over the full operating temperature range. The unique folding and interpolating architecture, the fully differential comparator design, the innovative design of the internal sample-and-hold amplifier and the self-calibration scheme enable an excellent response of all dynamic parameters, producing a high 6.6 Effective Number Of Bits, (ENOB) with a 248 MHz input signal and a 5 GHz sample rate. The LM97600 achieves a 5 GSPS sampling rate by utilizing both the rising and falling edge of a 2.5 GHz input clock. Data encoding is 8 bits offset binary. Average output word size is 7.6 bits. The serialized data is 8b10b encoded providing DC balance and AC coupling capability. Decoding can be accomplished using existing FPGA serial I/O modules.

The converter typically consumes less than 65 mW in the Power Down Mode and is available in a 292 ball, thermally enhanced substrate BGA, and operates over the Industrial (-40°C ≤ TA ≤ +85°C) ambient temperature range.

Features

  • 10 Lane High Speed Serial Data Output
  • Serial Interface for Extended Control
  • Adjustment of Input Full-Scale Range and Offset
  • Duty Cycle Corrected Sample Clock
  • Multiple Test Patterns
  • Dual +1.2V ±0.06V and 2.5V ±0.125V Operation

Key Specifications

  • Average Output Word Size: 7.6 bits
  • Max Conversion Rate: 1.25/2.5/5.0 GSPS (min)
  • Error Rate: 10−18 (typ)
  • ENOB @ 998 MHz Input: 6.4 Bits (typ)
  • SNR @ 998 MHz: 41 dB (typ)
  • Full Power Bandwidth (-3dB) Dual Mode: 1.2 GHz (typ)
  • Power Consumption
    • Operating: 3.0 W (typ)
    • Power Down Mode: 60 mW (typ)

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Parametrics Compare all products in High Speed ADC (>10MSPS)

 
Resolution (Bits)
Sample Rate (max) (SPS)
# Input Channels
SNR (dB)
ENOB (Bits)
SFDR (dB)
SINAD (dB)
Power Consumption (Typ) (mW)
Analog Input BW (MHz)
Architecture
DNL (Max) (+/-LSB)
Digital Supply (Min) (V)
Digital Supply (Max) (V)
Analog Voltage AV/DD (Min) (V)
Analog Voltage AV/DD (Max) (V)
Reference Mode
Input Range
Interface
Rating
Operating Temperature Range (C)
Approx. Price (US$)
LM97600
7.6    
5GSPS    
4    
43.8    
6.7    
50    
42.5    
3000    
1.2    
Folding Interpolating    
1    
2.375    
2.625    
1.14    
1.26    
Int    
0.85    
Serdes    
Catalog    
-40 to 85    
249.12 | 1ku    

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