isppac30 Lattice Semiconductor Corp., isppac30 Datasheet - Page 4

• Manufacturer Part Number: isppac30
• Description: In-system Programmable Analog Circuit
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
Electrical Characteristics, Continued
TA = 25°C; V
MDAC2 connected to OA2. V
wise specified).
Digital I/O (Continued)
Programming and Calibration
Power Supplies
Temperature Range
Notes:
1. Inputs larger than this will be clipped.
2. Inputs can be used fully differential if care is taken to offset signals so as to not force the outputs below 0V or above V
3. To insure full spec performance, an auto-calibration should be performed after initial turn-on when the device reaches thermal stability.
4. For all gains except G=1, output is assumed to be driven to 5V by the input signal level (V
5. V
6. Measured between analog outputs, with an identical signal path configuration used for each. One channel is driven with a 10kHz signal and
7. Computed 3db corner frequencies are 619kHz, 401kHz, 250kHz, 169kHz, 114kHz, 74kHz and 49kHz. Actual values found in PAC-
8. Logic inputs will exhibit positive current configured with a pull-down and negative current with a pull-up.
9. Configured so all internal circuitry is powered on.
Symbol
swing is measured from one differential extreme, with respect to polarity, to the other, or twice the peak single-ended input range.
ended input possible is 2.8V. The consequence is an output of 2.8V instead of 5V. Computed SNR is then 5dB less because of the lower
effective signal. With a true differential 2.5V input and G=1, output will again be a full 5V and SNR will be equal to the value shown in the
specification table.
the other is not (input grounded).
Designer software.
I
IL
IN+
V
V
P
V
I
, I
OH
OL
S
S
D
and V
IH
S
IN-
= 5.0V; 0V < V
Input Leakage Current
Hysteresis
Output Low Voltage (TDO)
Output High Voltage (TDO)
Erase/Reprogram Cycles
Calibration Cycle Time
Operating Supply Voltage
Supply Current (8)
Power Dissipation (9)
Power Down Supply Current
Wakeup Time
Operation
Storage
are connected together for this test.
Parameter
IN
OUT
< 2.8V; Gain = 1; Output load = 50pf, 1kΩ Ω Ω Ω . IA1, IA2, MDAC1 connected to OA1 and IA3, IA4,
biased to swing from 0.5 to 4.5V. Auto-Cal initiated immediately prior. (Unless other-
Time to resume normal operation
With pull-up/pull-down (8)
Subsequent user initiated
No pull-up/pull-down
For E
Schmitt Trigger
I
Initial turn on
I
OH
OL
Condition
V
V
V
4
2
S
S
S
CMOS cells
= -1.0mA
= 4.0mA
= 5.0V
= 5.0V
= 5.0V
IN
x Gain = 5V). When G=1, the maximum single
Min.
4.75
10K
2.4
-40
-65
ispPAC30 Data Sheet
Typ.
250
140
1M
3.5
50
10
50
10
5
Max.
5.25
±50
250
100
150
0.4
5.0
10
15
75
30
85
S
. The total input
cycles
Units
mW
mV
mA
ms
µA
µ A
µA
µs
°C
°C
V
V
V