Measurements of  ABCD2T chip performance at different analogue voltage.

Analogue voltages were measured at I_preamp = 147.2 I_shaper = 24.

Because of change of analogue current when changing I_preamp the Vcc drops from i.e 3.9V at I_preamp = 147.2 I_shaper = 24 to 3.82V at I_preamp = 202.4 I_shaper = 24. Vcc changes also when changing I_shaper: Vcc= 3.9 at I_preamp = 147.2 I_shaper = 24; Vcc=3.87V at I_preamp = 147.2 I_shaper = 31.2

Analogue current at I_preamp = 202.4 I_shaper = 24 was 0.25A and at I_preamp = 147.2 I_shaper = 24 was 0.2A.

Plots:

Gain: 

Gain at I_preamp = 147.2

Gain at I_preamp = 174.8
Gain at I_preamp = 202.4

Trimmend thresholds:

Thresholds at Ipre = 147.2 Ish = 31.2 Charge = 1.75fC