CC2538_15 Datasheet, PDF (16/33 Pages) Texas Instruments – Powerful Wireless Microcontroller System-On-Chip

CC2538
SWRS096D – DECEMBER 2012 – REVISED APRIL 2015
5.16 ADC Characteristics
T_A = 25°C and V_DD = 3 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
Input voltage
External reference voltage
External reference voltage differential
Input resistance, signal
Full-scale signal⁽¹⁾
V_DD is voltage on AVDD5 pin
V_DD is voltage on AVDD5 pin
V_DD 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
ENOB⁽¹⁾ Effective number of bits
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
Useful power bandwidth
7-bit setting, both single and differential
THD ⁽¹⁾
Total harmonic distortion
Single-ended input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, –6 dBFS
Single-ended input, 12-bit setting
Signal to nonharmonic ratio⁽¹⁾
Differential input, 12-bit setting
Single-ended input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, –6 dBFS
CMRR
Common-mode rejection ratio
Differential input, 12-bit setting, 1-kHz sine (0
dBFS), limited by ADC resolution
Crosstalk
Single-ended input, 12-bit setting, 1-kHz sine (0
dBFS), limited by ADC resolution
Offset
Midscale
Gain error
DNL ⁽¹⁾
Differential nonlinearity
12-bit setting, mean
12-bit setting, maximum
INL ⁽¹⁾
Integral nonlinearity
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
SINAD ⁽¹⁾
(–THD+N)
Signal-to-noise-and-distortion
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
Conversion time
9-bit setting
10-bit setting
12-bit setting
Current consumption
Internal reference voltage
Internal reference VDD coefficient
www.ti.com
MIN TYP MAX
0
V_DD
0
V_DD
0
V_DD
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
dB
mV
LSB
LSB
dB
µs
mA
V
mV/V
(1) Measured with 300-Hz sine-wave input and VDD as reference
16
Specifications
Submit Documentation Feedback
Product Folder Links: CC2538
Copyright © 2012–2015, Texas Instruments Incorporated