Chip with APD/SiPM read-out circuits and digital SiPM ("Voyager")
Project Members:
Vikas Vinayaka
Chip Schedule:
Submitted: 27-Aug-2018
Received: 14-Jan-2019 (estimated)
Chip Organization:
This chip, "Voyager", is designed in the AMS SiGe 0.35um BiCMOS process.
This chip
contains circuits to interface with APD (avalanche photodiode) and SiPM
(silicon photomultiplier). This chip is an enhanced version of "Solar Sailer".
The following circuits are present on the
chip:
- Digital SiPM
- VCO
- 4-bit Flash ADC
- Serial input 10-bit R-2R DAC
- Transimpedance amplifiers (CB and RGC)
- Comparators
Figure 1: Chip layout
Chip pin names and types:
This chip contains 55 pads/pins. Pin numbers are annotated in chip layout above. Pins are grouped by circuits as below.
Digital SiPM
Pin number
|
Pin name
| Pin type
|
12
|
dig_sipm_vref1
| Analog/DC
|
13
|
dig_sipm_vref2
| Analog/DC
|
14
|
dig_sipm_b4
| Digital/high-speed
|
15
|
dig_sipm_b3
| Digital/high-speed
|
16
|
dig_sipm_b2
| Digital/high-speed
|
17
|
dig_sipm_b1
|
Digital/high-speed
|
18
|
dig_sipm_b0 |
Digital/high-speed |
47
|
sipm_bias_hv
|
Analog/DC |
VCO
Pin number
|
Pin name
| Pin type
|
21
|
clk_ext_in
| Digital/high-speed
|
22
|
clk_div2_out
| Digital/high-speed
|
23
|
vco_vinvco
| Analog/DC
|
24
|
vco_en
| CMOS logic
|
49
|
vco_rlow
|
Analog/DC
|
50
|
vco_rrange
|
Analog/DC
|
TIA + comparators with DAC
Pin number
|
Pin name
| Pin type
|
1
|
comp_vref_ext_select
| CMOS logic
|
2
|
vref_comp_ext_in
| Analog/DC
|
3
|
tia_rcg_5k_comp_in
| Analog/high-speed
|
4
|
tia_rcg_5k_comp_out
| Analog/high-speed
|
7
|
tia_rcg_10k_comp_out
|
Analog/high-speed |
8
|
tia_cb_1k_comp_vb1
|
Analog/DC |
9
|
tia_cb_1k_comp_out |
Analog/high-speed |
10
|
tia_cb_2k_comp_vb1 |
Analog/DC |
11
|
tia_cb_2k_comp_out |
Analog/high-speed |
41
|
r2r_dac_din
|
CMOS logic |
42
|
r2r_dac_clk
|
CMOS logic |
43
|
r2r_dac_oen
|
CMOS logic |
44
|
tia_rcg_10k_comp_in
|
Analog/high-speed |
45
|
tia_cb_1k_comp_in |
Analog/high-speed |
46
|
tia_cb_2k_comp_in |
Analog/high-speed |
TIA + Flash ADC
Pin number
|
Pin name
| Pin type
|
27
|
flash_adc_b0
| Digital/high-speed
|
28
|
flash_adc_b1 | Digital/high-speed
|
29
|
tia_cb_1k_flash_adc_vrefp
| Analog/DC
|
30
|
flash_adc_b2
| Digital/high-speed
|
48
|
tia_cb_1k_flash_adc_vrefm
| Analog/DC
|
51
|
tia_cb_1k_flash_adc_in
|
Analog/high-speed |
52
|
flash_adc_b3
|
Digital/high-speed |
53
|
tia_cb_1k_flash_adc_vb1
|
Analog/DC |
Individual TIAs
Pin number
|
Pin name
| Pin type
|
31
|
tia_cb_2k_out
| Analog/high-speed
|
32
|
tia_cb_1k_out
| Analog/high-speed
|
33
|
tia_cb_1k_vb1
| Analog/DC
|
34
|
tia_cb_2k_vb1
| Analog/DC
|
37
|
tia_rcg_10k_in |
Analog/high-speed |
38
|
tia_rcg_10k_out |
Analog/high-speed |
39
|
tia_rcg_5k_in |
Analog/high-speed |
40
|
tia_rcg_5k_out |
Analog/high-speed |
54
|
tia_cb_1k_in |
Analog/high-speed |
55
|
tia_cb_2k_in |
Analog/high-speed |
Power
Pin number
|
Pin name
| Pin type
|
6, 35
|
vddn
| Power
|
19, 25
|
vdds
| Power
|
5, 20, 26, 36
|
gnd
|
Ground |
Return