CY8C34 Datasheet, PDF (77/99 Pages) Cypress Semiconductor – Programmable System-on-Chip (PSoC)

PRELIMINARY
PSoC^®3: CY8C34 Family Data Sheet
11.5.12 Unity Gain Buffer
The Unity Gain Buffer is created using a SC/CT Analog Block. See the Unity Gain Buffer component data sheet in PSoC Creator for
full AC/DC specifications, and APIs and example code.
Table 11-37. Unity Gain Buffer DC Specifications
Parameter
Vos
Voh, Vol
Description
Input offset voltage^[9]
Offset voltage drift
Input voltage range
Output voltage range
Conditions
Output current source capability^[9] Drive setting 3, Vdda = 1.71V
Quiescent current
Min Typ
-
-
-
-
Vssa
-
Vssa + -
0.15
-
-
-
900
Max
10
30
Vdda
Vdda -
0.15
250
-
Units
mV
µv/°C
V
V
µA
µA
Table 11-38. Unity Gain Buffer AC Specifications
Parameter
Description
Bandwidth^{[9, 15]}
Slew rate^[9]
Input noise spectral density^[9]
Conditions
Min Typ
Noninverting mode, 300 mV ≤ Vin ≤ 7
-
Vdda - 1.2V, Cl ≤ 25 pF
Vdda = 1.71V 5% to 90% FS output, 3
-
CL = 50 pF
-
38
Max
Units
-
MHz
-
V/µs
-
nV/sqrtHz
11.5.13 Temperature Sensor
Table 11-39. Temperature Sensor Specifications
Parameter
Description
Conditions
Temp sensor accuracy
-40 to +140 range
Min
Typ
Max
-
±5
-
Units
°C
11.5.14 LCD Direct Drive
Table 11-40. LCD Direct Drive DC Specifications
Parameter
Description
Icc
LCD operating current
V_bias
LCD bias range
LCD bias step size
LCD capacitance per
segment/common driver
Long term segment offset
Iout per segment driver
Strong drive
Weak drive
Weak drive 2
Icc per segment driver
Strong drive
Weak drive
Weak drive 2
No drive
Conditions
32x4 segment display at 30 Hz.
Segment capacitance is < 500 pF^[18].
Vdda must be 3V or higher
Drivers may be combined.
Min
-
2.048
-
-
-
120
-
-
220
-
-
-
Typ
15
-
25.8
500
-
160
0.5
1
260
11
22
<25
Max
-
5.325
-
5000
10
Units
μA
V
mV
pF
mV
200
µA
-
µA
-
µA
300
µA
-
µA
-
µA
-
nA
Document Number: 001-53304 Rev. *B
Page 77 of 99
[+] Feedback