LH75401_LH75411_N NXP Semiconductors, LH75401_LH75411_N Datasheet - Page 37

• Manufacturer Part Number: LH75401_LH75411_N
• Description: The NXP BlueStreak LH75401/LH75411 family consists of two low-cost 16/32-bit System-on-Chip (SoC) devices
• Manufacturer: NXP Semiconductors

System-on-Chip
Analog-To-Digital Converter Electrical
Characteristics
extended temperature operation. See Figure 6 for the
ADC transfer characteristics.
NOTES:
1. The analog section of the ADC takes 16 × A2DCLK cycles per conversion,
2. The internal voltage reference is driven to nominal value VREF = 2.0 V. Using the Reference Multiplexer,
3. The analog input pins can be driven anywhere between the power supply rails. If the voltage at the input to the
4. Bandgap and other low-bandwidth circuitry operating. All other ADC blocks shut down.
Preliminary data sheet
A/D Resolution
Throughput Conversion
Acquisition Time
Clk Period
Differential Non-Linearity
Integral Non-Linearity
Offset Error
Gain Error
On-chip Voltage Reference (VREF)
Negative Reference Input (VREF-)
Positive Reference Input (VREF+)
Crosstalk between channels
Analog Input Voltage Range
Analog Input Current
Reference Input Current
Analog input capacitance
Operating Supply Voltage
Operating Current, VDDA
Standby Current
Stop Current, VDDA
Brown Out Trip Point
Brown Out Hysterisis
Operating Temperature
Table 21 shows the derated specifications for
plus 1 × A2DCLK cycles to be made available in the PCLK domain.
An additional 3 × PCLK cycles are required before being available on the APB.
alternative low impedance (RS < 500) voltages can be selected as reference voltages. The range of voltages
allowed are specified above. However, the on-chip reference cannot drive the ADC unless the reference buffer is switched on.
ADC exceeds VREF+ or is below VREF-, the A/D result will saturate appropriately at positive or negative full scale.
Trying to pull the analog input pins above or below the power supply rails will cause protection diodes to be
forward-biased, resulting in large current source/sink and possible damage to the ADC.
PARAMETER
Table 21. ADC Electrical Characteristics at Industrial Operating Range
(VREF-) +1.0
NXP Semiconductors
VSSA
Rev. 01 — 16 July 2007
-0.99
MIN.
1.85
-3.5
-4.0
500
−40
-35
3.0
10
17
3
0
VSSA
VREF
TYP.
2.63
590
180
120
-60
< 1
2.0
(VREF+) -1.0
VDDA
VDDA
MAX.
5,000
+3.5
2.15
+35
4.5
4.0
3.6
10
15
85
5
5
CLK Cycles
CLK Cycles
UNITS
LSB
LSB
LSB
Bits
mV
mV
dB
µA
µA
µA
µA
µA
pF
°C
ns
V
V
V
V
V
V
LH75401/LH75411
NOTES
2
1
2
3
4
37