CY8C34_1105 CYPRESS [Cypress Semiconductor], CY8C34_1105 Datasheet - Page 85

• Manufacturer Part Number: CY8C34_1105
• Description: Programmable System-on-Chip (PSoC) DC to 50 MHz operation
• Manufacturer: CYPRESS [Cypress Semiconductor]

11.5.2 Delta-sigma ADC
Unless otherwise specified, operating conditions are:
Table 11-20. 12-bit Delta-sigma ADC DC Specifications
Document Number: 001-53304 Rev. *L
Ge
Gd
Vos
TCVos
INL12
DNL12
INL8
DNL8
Rin_Buff
Rin_ADC12 ADC input resistance
Vextref
Current Consumption
I
I
Notes
Parameter
DD_12
BUFF
36. Based on device characterization (Not production tested).
37. By using switched capacitors at the ADC input an effective input resistance is created. Holding the gain and number of bits constant, the resistance is proportional
Operation in continuous sample mode
fclk = 6.144 MHz
Reference = 1.024 V internal reference bypassed on P3.2 or P0.3
Unless otherwise specified, all charts and graphs show typical values
to the inverse of the clock frequency. This value is calculated, not measured. For more information see the Technical Reference Manual.
Resolution
Number of channels, single ended
Number of channels, differential
Monotonic
Gain error
Gain drift
Input offset voltage
Temperature coefficient, input offset voltage
Input voltage range, single ended
Input voltage range, differential unbuffered
Input voltage range, differential, buffered
Integral non linearity
Differential non linearity
Integral non linearity
Differential non linearity
ADC input resistance
ADC external reference input voltage, see
also internal reference in
on page 87
Current consumption, 12 bit
Buffer current consumption
Description
[36]
[36]
[36]
[36]
Voltage Reference
[36]
[36]
[36]
[36]
[36]
Differential pair is formed using a pair
of GPIOs.
Yes
Buffered, buffer gain = 1,
Range = ±1.024 V, 25 °C
Buffered, buffer gain = 1,
Range = ±1.024 V
Buffered, 16-bit mode, V
25 °C
Buffer gain = 1, 16-bit,
Range = ±1.024 V
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
Input buffer used
Input buffer bypassed, 12 bit, Range
= ±1.024 V
Pins P0[3], P3[2]
192 ksps, unbuffered
Conditions
DDA
= 2.7 V,
PSoC
V
V
V
®
Min
0.9
10
SSA
SSA
SSA
8
–
–
–
–
–
–
–
–
–
–
–
–
–
–
3: CY8C34 Family
148
Typ
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
[37]
Data Sheet
V
GPIO/2
No. of
No. of
DDA
GPIO
V
V
Max
±0.2
±0.1
Page 85 of 127
1.3
1.4
2.5
12
50
55
DDA
DDA
±1
±1
±1
±1
–
–
–
– 1
ppm/°
µV/°C
Units
LSB
LSB
LSB
LSB
MΩ
bits
mV
mA
mA
kΩ
%
C
V
V
V
V
–
–
–