PAC80 Datasheet, PDF (3/19 Pages) Lattice Semiconductor – In-System Programmable Analog Circuit

Specifications ispPAC80
AC Electrical Characteristics
Symbol
Parameter
Dynamic Performance (4)
SNR Signal to Noise (G=1 to 10)
THD Total Harmonic Distortion (Differential)
Single-Ended
Differential (F_P = 500kHz)
Single-Ended (F_P = 500kHz)
CMR Common Mode Rejection (V_IN = 1V to 4V)
Note: V_IN+ and V_IN- connected together
Filter Characteristics (4)
F_C
Corner Frequency Programming Range
|F_C|
Absolute Corner Frequency Accuracy
∆F_C
∆F_C/∆T
Maximum Delta Between Corner
Frequencies
Corner Frequency Delta vs. Temperature
∆F_C/∆V Corner Frequency Delta vs. Supply Voltage
Elliptic Filter Response (5)
Passband Ripple
Power Supplies
F_C = 50kHz
F_C = 500kHz
V_S
Operating Supply Voltage
I_S
Supply Current
P_D
Power Dissipation
Temperature Range
Operation
Storage
Condition
0.1Hz to 500kHz, F_C = 500kHz
F_IN = 10kHz, V_IN = 6Vp-p
F_IN = 10kHz, V_IN = 6Vp-p
F_IN = 100kHz, V_IN = 6Vp-p
F_IN = 100kHz, V_IN = 6Vp-p
10kHz
100kHz, F_C = 500kHz
Elliptic Filter Families
Deviation From Calculated -3dB point
F_C = 50, 200 or 500kHZ
50kHz to 500kHz
F_C = 50kHz
F_C = 500kHz
F_C = 50kHz
4.75
V_S = 5.0V
V_S = 5.0V
-40
-65
Min.
50
Typ. Max. Units
83
dB
-90
-74
dB
-80
dB
-90
-74
dB
-74
dB
60
50
dB
60
dB
500
kHz
0.6
3
%
3.7
%
0.03
%/°C
0.05
0.09
%/V
0.1
dB
0.5
dB
5
5.25
V
33
40
mA
210
mW
85
°C
150
°C
Notes: (1) A wider input range of 0.7V to 4.3V is typical, but not guaranteed. Inputs larger than this will be clipped. Input signals are also subject
to common-mode voltage limitations. Refer to the table of conditions in this datasheet. (2) Refer to theory of operation section later in this datasheet
for explanation of differential voltage swing computation. (3) To insure full spec performance an additional auto-calibration should be performed
after initial turn-on and the device reaches thermal stability. (4) Although many hundreds of thousands of filter configurations are available using
ispPAC80, not every type will have corner frequencies available from exactly 50kHz to 500kHz, depending on the tables available from within PAC-
Designer filter design tools. The general specifications given under this heading are realized using the Elliptic filter types. (5) A Cauer elliptic filter
of type CC051042 (see datasheet text) is used to guarantee these specific filter accuracy specifications. It is assumed that all other configurations
available in PAC-Designer will exhibit equivalent performance according to the applicability of the individual filter type. Necessary limitations will
apply, however, when specifications do not directly apply. See the data sheet text, application notes and guides in PAC-Designer for specific filter
type considerations.
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