ALPHA SMV2019-000

Silicon Hyperabrupt Varactor Diode Chips
SMV2019 to SMV2023
Features
■ High Q for Low Loss Resonators
■ Low Leakage Current
■ High Tuning Ratio for Wideband VCOs
■ SPICE Model Parameters
■ Small Footprint Chip Design
Description
nominal) and are fully passivated resulting in low
leakage current and high reliability. These varactor chips
are intended for assembly in hybrid integrated circuit
resonators used in VCOs and analog tuned filters.
Alpha Industries’ product line of silicon hyperabrupt
junction varactor diode chips are processed using
established ion-implantation technology resulting in low
RS wide tuning ratio devices with high Q values. These
planar chips have a small outline size (12 x 12 mils
Electrical Specifications at 25°C
Part Number
CJ @ 0 V
(pF)1
CJ @ 4 V
(pF)
CJ @ 20 V
(pF)
Q @ 4V
50 MHz2
1 GHz
Ω)
RS @ 4 V (Ω
IR @17.6 V
Contact
(nA)3
Diam. (mils)4
Typ.
Min.
Max.
Min.
Max.
Min.
Typ.
Max.
Nom.
SMV2019-000
2.3
0.68
0.88
0.13
0.23
500
4.8
50
2.00
SMV2020-000
3.1
1.13
1.43
0.23
0.33
500
4.1
50
2.50
SMV2021-000
4.5
1.58
1.98
0.32
0.44
500
2.8
50
3.00
SMV2022-000
7.1
2.48
3.08
0.48
0.68
400
2.2
50
3.75
SMV2023-000
10.8
4.28
5.28
0.78
1.08
400
1.4
50
5.00
1. All capacitance values specified at 1 MHz.
2. 50 MHz Q calculated from 1 GHz RS and 1 MHz CJ.
3. VB at 10 µA specified at 22 V Min.
4. Outline drawing 149-801.
Outline Drawing
Absolute Maximum Ratings
149-801
Characteristic
Reverse Voltage (VR)
ANODE METALIZED GOLD DOT
0.002 (0.051 mm) DIA. MIN.
0.010 (0.254 mm) MIN.
0.014 (0.356 mm) MAX. SQ.
Value
22 V
Forward Current (IF)
100 mA
Power Dissipation at 25°C (PD)
250 mW
Operating Temperature (TOP)
-55°C to +150°C
Storage Temperature (TST)
-65°C to +200°C
SILICON
0.004 (0.127 mm) MIN.
0.006 (0.152 mm) MAX.
CATHODE METALIZED BACK
CONTACT - GOLD
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 8/01A
1
Silicon Hyperabrupt Varactor Diode Chips
SMV2109 to SMV2023
12
11
10
9
8
7
6
5
4
3
2
1
0
6
SMV2019-000
Series Resistance (Ω)
Capacitance (pF)
Typical Performance Data
SMV2023-000
SMV2022-000
SMV2021-000
SMV2020-000
SMV2019-000
5
10
15
4
SMV2021-000
SMV2022-000
3
SMV2023-000
2
1
20
0
4
8
12
16
20
Reverse Voltage (V)
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
Series Resistance vs. Voltage @ 1 GHz
SPICE Model
Typical Capacitance Values
0.0
SMV2020-000
0
0
VR (V)
5
SMV2019 SMV2020
CJ (pF)
CJ (pF)
2.25
3.14
SMV2021
CJ (pF)
4.48
SMV2022 SMV2023
CJ (pF)
CJ (pF)
7.08
10.76
PORT
P_anode
port = 1
DIODEM
Diode_Model
IS = 1.00e-14
RS = RS
N = 1, 2
TT = 0
CJO = CJO
M=M
VJ = V J
EG = 1.11
XTI = 3
KF =0
AF =1
FC = 0.5
BV = 22
IBV = 1e-5
ISR = 0
NR = 2
IKF = 0
NBV = 1
IBVL = 0
NBVL = 1
TBV1 = 0
TNOM = 27
FFE = 1
0.5
1.79
2.5
3.57
5.66
8.76
1.0
1.53
2.16
3.09
4.88
7.67
2.0
1.19
1.72
2.45
3.89
6.31
3.0
0.99
1.44
2.09
3.19
5.38
4.0
0.84
1.24
1.83
2.71
4.75
5.0
0.71
1.07
1.60
2.30
4.21
6.0
0.57
0.90
1.37
1.87
3.66
7.0
0.46
0.74
1.17
1.52
3.17
8.0
0.38
0.61
0.97
1.25
2.68
9.0
0.33
0.52
0.81
1.07
2.25
10.0
0.29
0.46
0.69
0.94
1.89
11.0
0.26
0.42
0.61
0.85
1.66
12.0
0.24
0.38
0.56
0.78
1.49
13.0
0.23
0.36
0.51
0.73
1.35
14.0
0.21
0.34
0.48
0.69
1.24
15.0
0.20
0.32
0.45
0.65
1.16
16.0
0.19
0.31
0.43
0.62
1.10
17.0
0.19
0.29
0.41
0.59
1.04
18.0
0.18
0.28
0.39
0.57
0.99
0.17
0.27
0.38
0.55
0.95
Part
Number
CJO
(pF)
VJ
(V)
M
19.0
RS
Ω)
(Ω
20.0
0.16
0.26
0.36
0.54
0.91
SMV2019
2.3
3.5
1.40
4.8
SMV2020
3.3
3.6
1.30
4.1
SMV2021
4.5
3.9
1.34
2.8
SMV2022
7.1
4.0
1.40
2.2
SMV2023
10.8
4.6
1.45
1.4
RES
RS
R = RS
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
PORT
P_Cathode
port = 2
CV =
CJ0
1+ VR
VJ
M
+ CP
SPICE model parameters extracted from measured characteristics may not
reflect exact physical or electronic properties. See application note APN1004.
2
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 8/01A