IEEE Solid-States Circuits Magazine - Fall 2020 - 14
1.2
VY
VX
Voltage (V)
1
0.8
0.6
0.4
0.2
0
-0.2
0
2
4
6
8
10
Time (ns)
(b)
12
14
16
18
20
1.2
VY
VX
Voltage (V)
1
0.8
0.6
0.4
0.2
0
-0.2
0
2
4
6
8
10
Time (ns)
(a)
12
14
16
18
20
FIGURE 15: The comparator outputs (a) for perfect balance and (b) with an input difference equal to 0.31 mV.
200
Iin1
Iin2
150
Current (µA)
100
50
0
-50
and the latter prove problematic generally. Kickback noise trades with the
dimensions of the input transistors
and hence with the offset voltage. But
the timing of this noise determines
whether it has an adverse effect on the
performance. For example, we expect
the noise around t = 300 ps in Figure 16 to be more serious, as it coincides
with the comparator's decision time.
-100
References
-150
-200
300
350
400
Time (ps)
450
FIGURE 16: The input kickback noise currents of a StrongArm comparator.
VS = 0.31mV. The comparator's input rms noise is approximately equal
to this value. For greater precision,
we can run the two simulations for a
larger number of clock cycles.
Kickback Noise
The StrongArm latch draws large transient currents from its inputs during
switching. Called the kickback noise,
this phenomenon proves undesirable
if it affects the comparator's own deci-
14
FA L L 2 0 2 0
sion or corrupts the input voltage while
it is sensed by other circuits. For example, in a flash ADC, all of the comparators generate kickback noise while one
must make a critical decision. Figure 16
plots the kickback noise currents of
our design when Vin1 - Vin2 = 1mV.
The clock begins to rise at t = 300 ps.
We recognize that the two exhibit both
CM and differential components. The
former are objectionable if they flow
through unequal source impedances,
IEEE SOLID-STATE CIRCUITS MAGAZINE
[1] J. Montanaro et al., " A 160-MHz 32-b
0.5-W CMOS RISC microprocessor, " IEEE
J. Solid-State Circuits, vol. 31, no. 11,
pp. 1703-1714, Nov. 1996. doi: 10.1109/
JSSC.1996.542315.
[2] T. Kobayashi, K. Nogami, T. Shirotori, Y.
Fujimoto, and O. Watanabe, " A currentmode latch sense amplifier and a static
power saving input buffer for low-power
architecture, " in Proc. VLSI Circuits Symp.
Dig. Tech. Papers, June 1992, pp. 28-29.
doi: 10.1109/VLSIC.1992.229252.
[3] P. Nuzzo, F. De Bernardinis, P. Terreni,
and G. Van der Plas, " Noise analysis of
regenerative comparators for reconfigurable ADC architectures, " IEEE Trans.
Circuits Syst. I, Reg. Papers, vol. 55, no. 6,
pp. 1441-1454, July 2008. doi: 10.1109/
TCSI.2008.917991.
[4] B. Razavi, " The StrongARM Latch [a circuit
for all seasons], " IEEE Solid State Circuits
Mag., vol. 7, no. 2, pp. 12-17, Spring 2015.
doi: 10.1109/MSSC.2015.2418155.
[5] M. J. M. Pelgrom, A. C. J. Duinmaijer, and
A. P. G. Welbers, " Matching properties of
MOS transistors, " IEEE J. Solid-State Circuits, vol. 24, no. 5, pp. 1433-1440, Oct.
1989. doi: 10.1109/JSSC.1989.572629.
IEEE Solid-States Circuits Magazine - Fall 2020
Table of Contents for the Digital Edition of IEEE Solid-States Circuits Magazine - Fall 2020
Contents
IEEE Solid-States Circuits Magazine - Fall 2020 - Cover1
IEEE Solid-States Circuits Magazine - Fall 2020 - Cover2
IEEE Solid-States Circuits Magazine - Fall 2020 - Contents
IEEE Solid-States Circuits Magazine - Fall 2020 - 2
IEEE Solid-States Circuits Magazine - Fall 2020 - 3
IEEE Solid-States Circuits Magazine - Fall 2020 - 4
IEEE Solid-States Circuits Magazine - Fall 2020 - 5
IEEE Solid-States Circuits Magazine - Fall 2020 - 6
IEEE Solid-States Circuits Magazine - Fall 2020 - 7
IEEE Solid-States Circuits Magazine - Fall 2020 - 8
IEEE Solid-States Circuits Magazine - Fall 2020 - 9
IEEE Solid-States Circuits Magazine - Fall 2020 - 10
IEEE Solid-States Circuits Magazine - Fall 2020 - 11
IEEE Solid-States Circuits Magazine - Fall 2020 - 12
IEEE Solid-States Circuits Magazine - Fall 2020 - 13
IEEE Solid-States Circuits Magazine - Fall 2020 - 14
IEEE Solid-States Circuits Magazine - Fall 2020 - 15
IEEE Solid-States Circuits Magazine - Fall 2020 - 16
IEEE Solid-States Circuits Magazine - Fall 2020 - 17
IEEE Solid-States Circuits Magazine - Fall 2020 - 18
IEEE Solid-States Circuits Magazine - Fall 2020 - 19
IEEE Solid-States Circuits Magazine - Fall 2020 - 20
IEEE Solid-States Circuits Magazine - Fall 2020 - 21
IEEE Solid-States Circuits Magazine - Fall 2020 - 22
IEEE Solid-States Circuits Magazine - Fall 2020 - 23
IEEE Solid-States Circuits Magazine - Fall 2020 - 24
IEEE Solid-States Circuits Magazine - Fall 2020 - 25
IEEE Solid-States Circuits Magazine - Fall 2020 - 26
IEEE Solid-States Circuits Magazine - Fall 2020 - 27
IEEE Solid-States Circuits Magazine - Fall 2020 - 28
IEEE Solid-States Circuits Magazine - Fall 2020 - 29
IEEE Solid-States Circuits Magazine - Fall 2020 - 30
IEEE Solid-States Circuits Magazine - Fall 2020 - 31
IEEE Solid-States Circuits Magazine - Fall 2020 - 32
IEEE Solid-States Circuits Magazine - Fall 2020 - 33
IEEE Solid-States Circuits Magazine - Fall 2020 - 34
IEEE Solid-States Circuits Magazine - Fall 2020 - 35
IEEE Solid-States Circuits Magazine - Fall 2020 - 36
IEEE Solid-States Circuits Magazine - Fall 2020 - 37
IEEE Solid-States Circuits Magazine - Fall 2020 - 38
IEEE Solid-States Circuits Magazine - Fall 2020 - 39
IEEE Solid-States Circuits Magazine - Fall 2020 - 40
IEEE Solid-States Circuits Magazine - Fall 2020 - 41
IEEE Solid-States Circuits Magazine - Fall 2020 - 42
IEEE Solid-States Circuits Magazine - Fall 2020 - 43
IEEE Solid-States Circuits Magazine - Fall 2020 - 44
IEEE Solid-States Circuits Magazine - Fall 2020 - 45
IEEE Solid-States Circuits Magazine - Fall 2020 - 46
IEEE Solid-States Circuits Magazine - Fall 2020 - 47
IEEE Solid-States Circuits Magazine - Fall 2020 - 48
IEEE Solid-States Circuits Magazine - Fall 2020 - 49
IEEE Solid-States Circuits Magazine - Fall 2020 - 50
IEEE Solid-States Circuits Magazine - Fall 2020 - 51
IEEE Solid-States Circuits Magazine - Fall 2020 - 52
IEEE Solid-States Circuits Magazine - Fall 2020 - 53
IEEE Solid-States Circuits Magazine - Fall 2020 - 54
IEEE Solid-States Circuits Magazine - Fall 2020 - 55
IEEE Solid-States Circuits Magazine - Fall 2020 - 56
IEEE Solid-States Circuits Magazine - Fall 2020 - 57
IEEE Solid-States Circuits Magazine - Fall 2020 - 58
IEEE Solid-States Circuits Magazine - Fall 2020 - 59
IEEE Solid-States Circuits Magazine - Fall 2020 - 60
IEEE Solid-States Circuits Magazine - Fall 2020 - 61
IEEE Solid-States Circuits Magazine - Fall 2020 - 62
IEEE Solid-States Circuits Magazine - Fall 2020 - 63
IEEE Solid-States Circuits Magazine - Fall 2020 - 64
IEEE Solid-States Circuits Magazine - Fall 2020 - 65
IEEE Solid-States Circuits Magazine - Fall 2020 - 66
IEEE Solid-States Circuits Magazine - Fall 2020 - 67
IEEE Solid-States Circuits Magazine - Fall 2020 - 68
IEEE Solid-States Circuits Magazine - Fall 2020 - 69
IEEE Solid-States Circuits Magazine - Fall 2020 - 70
IEEE Solid-States Circuits Magazine - Fall 2020 - 71
IEEE Solid-States Circuits Magazine - Fall 2020 - 72
IEEE Solid-States Circuits Magazine - Fall 2020 - 73
IEEE Solid-States Circuits Magazine - Fall 2020 - 74
IEEE Solid-States Circuits Magazine - Fall 2020 - 75
IEEE Solid-States Circuits Magazine - Fall 2020 - 76
IEEE Solid-States Circuits Magazine - Fall 2020 - 77
IEEE Solid-States Circuits Magazine - Fall 2020 - 78
IEEE Solid-States Circuits Magazine - Fall 2020 - 79
IEEE Solid-States Circuits Magazine - Fall 2020 - 80
IEEE Solid-States Circuits Magazine - Fall 2020 - 81
IEEE Solid-States Circuits Magazine - Fall 2020 - 82
IEEE Solid-States Circuits Magazine - Fall 2020 - 83
IEEE Solid-States Circuits Magazine - Fall 2020 - 84
IEEE Solid-States Circuits Magazine - Fall 2020 - 85
IEEE Solid-States Circuits Magazine - Fall 2020 - 86
IEEE Solid-States Circuits Magazine - Fall 2020 - 87
IEEE Solid-States Circuits Magazine - Fall 2020 - 88
IEEE Solid-States Circuits Magazine - Fall 2020 - 89
IEEE Solid-States Circuits Magazine - Fall 2020 - 90
IEEE Solid-States Circuits Magazine - Fall 2020 - 91
IEEE Solid-States Circuits Magazine - Fall 2020 - 92
IEEE Solid-States Circuits Magazine - Fall 2020 - 93
IEEE Solid-States Circuits Magazine - Fall 2020 - 94
IEEE Solid-States Circuits Magazine - Fall 2020 - 95
IEEE Solid-States Circuits Magazine - Fall 2020 - 96
IEEE Solid-States Circuits Magazine - Fall 2020 - 97
IEEE Solid-States Circuits Magazine - Fall 2020 - 98
IEEE Solid-States Circuits Magazine - Fall 2020 - 99
IEEE Solid-States Circuits Magazine - Fall 2020 - 100
IEEE Solid-States Circuits Magazine - Fall 2020 - 101
IEEE Solid-States Circuits Magazine - Fall 2020 - 102
IEEE Solid-States Circuits Magazine - Fall 2020 - 103
IEEE Solid-States Circuits Magazine - Fall 2020 - 104
IEEE Solid-States Circuits Magazine - Fall 2020 - 105
IEEE Solid-States Circuits Magazine - Fall 2020 - 106
IEEE Solid-States Circuits Magazine - Fall 2020 - 107
IEEE Solid-States Circuits Magazine - Fall 2020 - 108
IEEE Solid-States Circuits Magazine - Fall 2020 - 109
IEEE Solid-States Circuits Magazine - Fall 2020 - 110
IEEE Solid-States Circuits Magazine - Fall 2020 - 111
IEEE Solid-States Circuits Magazine - Fall 2020 - 112
IEEE Solid-States Circuits Magazine - Fall 2020 - 113
IEEE Solid-States Circuits Magazine - Fall 2020 - 114
IEEE Solid-States Circuits Magazine - Fall 2020 - 115
IEEE Solid-States Circuits Magazine - Fall 2020 - 116
IEEE Solid-States Circuits Magazine - Fall 2020 - 117
IEEE Solid-States Circuits Magazine - Fall 2020 - 118
IEEE Solid-States Circuits Magazine - Fall 2020 - 119
IEEE Solid-States Circuits Magazine - Fall 2020 - 120
IEEE Solid-States Circuits Magazine - Fall 2020 - 121
IEEE Solid-States Circuits Magazine - Fall 2020 - 122
IEEE Solid-States Circuits Magazine - Fall 2020 - 123
IEEE Solid-States Circuits Magazine - Fall 2020 - 124
IEEE Solid-States Circuits Magazine - Fall 2020 - 125
IEEE Solid-States Circuits Magazine - Fall 2020 - 126
IEEE Solid-States Circuits Magazine - Fall 2020 - 127
IEEE Solid-States Circuits Magazine - Fall 2020 - 128
IEEE Solid-States Circuits Magazine - Fall 2020 - Cover3
IEEE Solid-States Circuits Magazine - Fall 2020 - Cover4
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2019
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2019
https://www.nxtbook.com/nxtbooks/ieee/mssc_2019summer
https://www.nxtbook.com/nxtbooks/ieee/mssc_2019winter
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018fall
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018summer
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018spring
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018winter
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2014
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2014
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2014
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2014
https://www.nxtbookmedia.com