Q:

Help identify IC with erased label by using pin connections in the schematic

I am reversing a board which some of its IC labels are erased by the manufacturer. I've drowned its schematic in the picture below. The label-removed ICs in the schematic are IC5, IC8, and IC13 which are marked in the picture.
The table of resistor values is attached and all of the electrolyte capacitors are 10uF 50V except C9, C10.
I have also attached the pictures of the ICs on the board.
The board connects to a motherboard by a 3*32 pin connector which is shown by a rectangle sign with its number in the schematic. I found a text about this board that says the board's job is analog processing of values measured by other motherboard's cards.
From the schematic, I guess that IC13 is a kind of switch-mode power supply and IC5 is maybe a quad digital to analog converter.
I searched in datasheets but still, I couldn't find any IC with input and output pins accorded to the schematic. 
I hope you can help me to identify the marking code or the family of unknown ICs (IC5, IC8, IC13).

A:

My guesses are:-
IC13 - RC4194 Dual tracking Linear voltage regulators

IC5 - AD7549 Dual 12 bit uP compatible DAC
 
IC8 - LTC1068 Clock-Tunable Quad Second Order Filter Building Block

