ICE-A2D-r8

Analog to Digital Converter Module

A2D-r8 Top

A2D-r8 Bottom

Features

A2D-r8 Functional Diagram

• Utilizes TI ADS5424
• 14-bit 105 MSamp/sec A/D converter 1Vp-p analog input range
• Jumper-selectable AC- or DC-coupled analog input
• External clock derived via a comparator, AC-coupled 1Vp-p
• Oscillator socket (for user supplied clock, jumper selectable with external comparator clock)
• External connector for 1-PPS LVTTL input-stored in bit 0 of 16 bit word (14-bit data MSB-aligned)
• Over/underflow output on data bit 1 of 16-bit word (14-bit data MSB-aligned)

Note: For Use Only With ICE-PIC5XL or ICE-PIC6 or ICEPIC8(Consult Factory)

ICE Enterprises, Inc. • 10302 Eaton Place, Suite 100, Fairfax, VA 22030
Phone 703-934-4879 • Fax 703-591-3048 • sales@ice-online.com • www.ice-online.com
DOCID-ICE-A2D-r8-2025167

Jumper Settings

DC- or AC-Coupled

Jumper	DC-Coupled1,2	AC-Coupled
J7	1 & 2 SHORT	2 & 3 SHORT
J8	1 & 2 SHORT	2 & 3 SHORT
J9	1 & 2 SHORT	2 & 3 SHORT

Notes:

1. For sampling rates Of 2 MSPS and below, DC-coupling should be used.
2. DC-coupled is the default setting when delivered.

Digital 3.3V Power Source

Jumper	Voltage Regulator1	Board Header2
J3	1 & 2 SHORT	OPEN
J4	1 & 2 SHORT	2 & 3 SHORT

Notes:

1. 3.3V digital power via voltage regulator (default power setting when delivered)
2. 3.3V digital power via board header (not an available source for the ICE-PIC3T or ICE-MBT3)

Analog 5V Power Source

Jumper	Board Header1	External2
J2	2 & 3 SHORT	1 & 2 SHORT

Notes:

1. 5V analog power via board header (default power setting when delivered)

   5V power is shared between digital logic and analog logic.

2. 5V analog power via external power source:

   For normal operation, you will not need external power connections. Users who wish to supply the analog circuitry a "quieter" external power source, separate from the digital power connection as provided above, can connect to one or both pins of J2 a separate 5V supply.

Addendum:

• For connecting to J2, Digi-Key supplies a terminal housing (Part Number: WM2601-ND).
• You will also need 2 terminals for the housing (Part Number: WM2200-ND).
• Wires: 22-30 AWG.

ICE Enterprises, Inc. • 10302 Eaton Place, Suite 100, Fairfax, VA 22030
Phone 703-934-4879 • Fax 703-591-3048 • sales@ice-online.com • www.ice-online.com
DOCID-ICE-A2D-r8-2025167

External Clock Selection

Jumper	SMB Comparator1	User Supplied Oscillator2
J6	1 & 2 SHORT	2 & 3 SHORT

Notes:

1. Default selection when delivered.
2. User supplied oscillator—Oscillator (X4) should be 5V with CMOS output.

Status

This model is in production. For pricing, please see the Pricing page.