M.S. IPHC-LBL meeting, January 22, 2013

111

Mass termination board (MTBv2.0) full power test

Outline: Test setup Power consumption Single ladder vs. full power test Summary

M.S. IPHC-LBL meeting, January 22, 2013

22

Test setup (1) Production ladder power consumption:

– ~2 A => ~1.3 A VDA + ~0.7 A VDD

Ladder emulation:– V_analog 3.3V @ 2.2 + 0.2 – V_digital 3.3V @ 4.7

0.2

2.2

GND

VDA

sense

M.S. IPHC-LBL meeting, January 22, 2013

33

1 PXL production ladder+ 3 “ladders” (resistors)

Test setup (2)

MTBv2.0 RDO(Xilinx)

M.S. IPHC-LBL meeting, January 22, 2013

44

Single ladder vs. full power test - noiseL003 (Vref2=120) @ 3.3V

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

sensors 1-10, sub-arrays ABCD

nois

e (m

V)

high_th noise_mean high_th_full_PWR noise_mean

M.S. IPHC-LBL meeting, January 22, 2013

55

Single ladder vs. full power test - FPN

L003 (Vref2=120) @ 3.3V

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

sensors 1-10, sub-arrays ABCD

FPN

(mV)

high_th FPN_RMS high_th_full_PWR FPN_RMS

M.S. IPHC-LBL meeting, January 22, 2013

66

Single ladder vs. full power test - offset

L003 (Vref2=120) @ 3.3V

-2

-1

0

1

2

3

4

5

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

sensors 1-10, sub-arrays ABCD

offs

et c

hang

e (A

DC

)

high_th_full_PWR corr_offset

M.S. IPHC-LBL meeting, January 22, 2013

77

Summary

No discernible difference between single ladder tests and full current load tests (@ 8A)

Ladder performance tested using our new MTBv2.0 board is stable under low and high current load conditions

This performance will be validated with a full sector test