PAC80 Datasheet, PDF (8/19 Pages) Lattice Semiconductor – In-System Programmable Analog Circuit

Specifications ispPAC80
Typical Performance Characteristics
Input Noise Spectrum
10K
1K
G=1
CMR vs. Frequency
90
Elliptical filter
80
cc051042
Fc = 50kHz
70
60
100
G = 10
(Referred to Input)
50
Elliptical filter
cc051042
40
Fc = 500kHz
10
1 10 100 1k 10k 100k 1M
Frequency (Hz)
30
10
100 1k 10k 100k 1M
Frequency (Hz)
PSR vs. Frequency
90
80
70
60
50
40
30
100
1k
10k 100k 1M
Frequency (Hz)
THD vs. Frequency
-70
Elliptical filter
-75
cc051042
Fc = 500kHz
-80
G=1
-85
G = 10
-90
-95
-100
1k
10k
100k
1M
Frequency (Hz)
50 kHz Corner Freq. Error
200 Units
PDIP Pkg
30
Elliptical filter
cc051042
25
20
15
10
5
-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5
Corner Frequency Error (%)
V_OS Tempco
30
3 Wafer Lots
25
PDIP Pkg
-40¡C to +85¡C
20
15
10
5
0
-100 -50 0 50 100
Offset Tempco (µV/¡C)
Filter Variation (3 Sigma)
0 dB
Passband ripple
variation over
process < 0.02dB
-40 dB
Stopband
attenuation
variation over
process < 0.9dB
-80 dB
Elliptical filter
cc051042
10kHz 100kHz 1MHz
200 kHz Corner Freq. Error
200 Units
PDIP Pkg
30
Elliptical filter
cc051042
25
20
15
10
5
-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5
Corner Frequency Error (%)
500 kHz Corner Freq. Error
200 Units
PDIP Pkg
50
Elliptical filter
cc051042
40
30
20
10
-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5
Corner Frequency Error (%)
8