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CC2538 Datasheet, PDF (11/24 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – A Powerful System-On-Chip for 2.4-GHz IEEE 802.15.4, 6LoWPAN and ZigBee Applications
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CC2538
www.ti.com
SWRS096A – DECEMBER 2012 – REVISED APRIL 2013
ADC CHARACTERISTICS
TA = 25°C and VDD = 3 V, unless otherwise noted.
PARAMETER
Input voltage
External reference voltage
External reference voltage differential
Input resistance, signal
Full-scale signal(1)
ENOB(1) Effective number of bits
THD (1)
Useful power bandwidth
Total harmonic distortion
Signal to nonharmonic ratio(1)
CMRR
DNL (1)
INL (1)
Common-mode rejection ratio
Crosstalk
Offset
Gain error
Differential nonlinearity
Integral nonlinearity
SINAD (1)
(–THD+N)
Signal-to-noise-and-distortion
Conversion time
Current consumption
Internal reference voltage
Internal reference VDD coefficient
Internal reference temperature coefficient
TEST CONDITIONS
VDD is voltage on AVDD5 pin
VDD is voltage on AVDD5 pin
VDD is voltage on AVDD5 pin
Using 4-MHz clock speed
Peak-to-peak, defines 0 dBFS
Single-ended input, 7-bit setting
Single-ended input, 9-bit setting
Single-ended input, 10-bit setting
Single-ended input, 12-bit setting
Differential input, 7-bit setting
Differential input, 9-bit setting
Differential input, 10-bit setting
Differential input, 12-bit setting
7-bit setting, both single and differential
Single-ended input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, –6 dBFS
Single-ended input, 12-bit setting
Differential input, 12-bit setting
Single-ended input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, 1-kHz sine (0
dBFS), limited by ADC resolution
Single-ended input, 12-bit setting, 1-kHz sine
(0 dBFS), limited by ADC resolution
Midscale
12-bit setting, mean
12-bit setting, maximum
12-bit setting, mean
12-bit setting, maximum
Single-ended input, 7-bit setting
Single-ended input, 9-bit setting
Single-ended input, 10-bit setting
Single-ended input, 12-bit setting
Differential input, 7-bit setting
Differential input, 9-bit setting
Differential input, 10-bit setting
Differential input, 12-bit setting
7-bit setting
9-bit setting
10-bit setting
12-bit setting
(1) Measured with 300-Hz sine-wave input and VDD as reference
MIN TYP MAX
0
VDD
0
VDD
0
VDD
197
2.97
5.7
7.5
9.3
10.8
6.5
8.3
10.0
11.5
0–20
–75.2
–86.6
70.2
79.3
78.8
88.9
>84
UNIT
V
V
V
kΩ
V
Bits
kHz
dB
dB
dB
< – 84
–3
0.68%
0.05
0.9
4.6
13.3
35.4
46.8
57.5
66.6
40.7
51.6
61.8
70.8
20
36
68
132
1.2
1.19
2
0.4
dB
mV
LSB
LSB
dB
μs
mA
V
mV/V
mV/10°C
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