d. Time measured from 80% to 20% of V
DD
.
23.13 Analog-to-Digital Converter (ADC)
Table 23-21. ADC Characteristics
a
UnitMaxNomMinParameter NameParameter
V3.0--Maximum single-ended, full-scale analog input voltage,
using internal reference
V
ADCIN
VV
REFA
--Maximum single-ended, full-scale analog input voltage,
using external reference
V--0.0Minimum single-ended, full-scale analog input voltage
V1.5--Maximum differential, full-scale analog input voltage,
using internal reference
VV
REFA
/2--Maximum differential, full-scale analog input voltage,
using external reference
V--0.0Minimum differential, full-scale analog input voltage
bits12ResolutionN
MHz16.00481615.9952ADC internal clock frequency
b
F
ADC
µs1Conversion time
c
T
ADCCONV
k samples/s1000Conversion rate
c
F
ADCCONV
ns--125Sample timeT
ADCSAMP
system clocks-2-Latency from trigger to start of conversionT
LT
µA2.0--ADC input leakageI
L
kΩ10--ADC equivalent resistanceR
ADC
pF1.11.00.9ADC equivalent capacitanceC
ADC
LSB±8--Integral nonlinearity (INL) error, 12-bit mode
E
L
LSB±2--Integral nonlinearity (INL) error, 10-bit mode
LSB±4--Differential nonlinearity (DNL) error, 12-bit mode
E
D
LSB±2--Differential nonlinearity (DNL) error, 10-bit mode
LSB±40--Offset error, 12-bit mode
E
O
LSB±10--Offset error, 10-bit mode
LSB±100--Full-scale gain error, 12-bit mode
E
G
LSB±25--Full-scale gain error, 10-bit mode
°C±5--Temperature sensor accuracy
d
E
TS
a. The ADC reference voltage is 3.0 V. This reference voltage is internally generated from the 3.3 VDDA supply by a band
gap circuit.
b. The ADC must be clocked from the PLL or directly from an external clock source to operate properly.
c. The conversion time and rate scale from the specified number if the ADC internal clock frequency is any value other than
16 MHz.
d. Note that this parameter does not include ADC error.
July 24, 2012992
Texas Instruments-Production Data
Electrical Characteristics
OBSOLETE: TI has discontinued production of this device.
