AMC1306E05_017 Datasheet, PDF (7/38 Pages) Texas Instruments – Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators with High CMTI

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AMC1306E05, AMC1306E25, AMC1306M05, AMC1306M25
SBAS734A – MARCH 2017 – REVISED JULY 2017
7.9 Electrical Characteristics: AMC1306x05
minimum and maximum specifications apply from T_A = –40°C to +125°C, AVDD = 3.0 V to 5.5 V, DVDD = 2.7 V to 5.5 V,
AINP = –50 mV to 50 mV, AINN = AGND, and sinc³ filter with OSR = 256 (unless otherwise noted); typical specifications are
at T_A = 25°C, CLKIN = 20 MHz, AVDD = 5 V, and DVDD = 3.3 V
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
ANALOG INPUTS
V_Clipping
FSR
Differential input voltage before clipping output
Specified linear differential full-scale
Absolute common-mode input voltage⁽¹⁾
V_IN = AINP – AINN
V_IN = AINP – AINN
(AINP + AINN) / 2 to AGND
±64
mV
–50
50
mV
–2
AVDD
V
V_CM
V_CMov
C_IN
C_IND
I_IB
R_IN
R_IND
I_IO
CMTI
Operating common-mode input voltage
Common-mode overvoltage detection level⁽²⁾
Single-ended input capacitance
Differential input capacitance
Input bias current
Single-ended input resistance
Differential input resistance
Input offset current
Common-mode transient immunity
(AINP + AINN) / 2 to AGND
(AINP + AINN) / 2 to AGND
AINN = AGND
AINP = AINN = AGND, I_IB = I_IBP + I_IBN
AINN = AGND
–0.032
AVDD - 2
–97
50
AVDD – 2.1
4
2
–72
–57
4.75
4.9
±10
100
V
V
pF
pF
μA
kΩ
kΩ
nA
kV/μs
CMRR Common-mode rejection ratio
BW
Input bandwidth⁽³⁾
AINP = AINN, f_IN = 0 Hz,
V_{CM min} ≤ V_IN ≤ V_{CM max}
AINP = AINN, f_IN from 0.1 Hz to 50 kHz,
V_{CM min} ≤ V_IN ≤ V_{CM max}
–99
dB
–98
800
kHz
DC ACCURACY
DNL Differential nonlinearity
Resolution: 16 bits
–0.99
0.99
LSB
INL
Integral nonlinearity⁽⁴⁾
Resolution: 16 bits, 4.5 V ≤ AVDD ≤ 5.5 V
Resolution: 16 bits, 3.0 V ≤ AVDD ≤ 3.6 V
–4
±1
–5
±1.5
4
LSB
5
E_O
TCE_O
E_G
TCE_G
Offset error
Offset error thermal drift⁽⁵⁾
Gain error
Gain error thermal drift⁽⁶⁾
PSRR Power-supply rejection ratio
Initial, at 25°C, AINP = AINN = AGND
Initial, at 25°C
AINP = AINN = AGND,
3.0 V ≤ AVDD ≤ 5.5 V, at dc
AINP = AINN = AGND,
3.0 V ≤ AVDD ≤ 5.5 V,
10 kHz, 100-mV ripple
–50
–1
–0.2%
–40
±2.5
±0.25
±0.005%
±20
–108
–107
50
1
0.2%
40
µV
μV/°C
ppm/°C
dB
AC ACCURACY
SNR Signal-to-noise ratio
SINAD Signal-to-noise + distortion
THD Total harmonic distortion
SFDR Spurious-free dynamic range
f_IN = 1 kHz
f_IN = 1 kHz
4.5 V ≤ AVDD ≤ 5.5 V,
5 MHz ≤ f_CLKIN ≤ 21 MHz, f_IN = 1 kHz
3.0 V ≤ AVDD ≤ 3.6 V,
5 MHz ≤ f_CLKIN ≤ 20 MHz, f_IN = 1 kHz
f_IN = 1 kHz
78
82.5
77.5
82.3
–98
–93
83
100
dB
dB
–84
dB
–83
dB
(1) Steady-state voltage supported by the device in case of a system failure. See specified common-mode input voltage V_CM for normal
operation. Observe analog input voltage range as specified in the Absolute Maximum Ratings table.
(2) The common-mode overvoltage detection level has a typical hysteresis of 90 mV.
(3) This is the –3-dB, second-order roll-off frequency of the integrated differential input amplifier to consider for the antialiasing filter design.
(4) Integral nonlinearity is defined as the maximum deviation from a straight line passing through the end-points of the ideal ADC transfer
function expressed as a number of LSBs or as a percent of the specified linear full-scale range (FSR).
(5) Offset error drift is calculated using the box method, as described by the following equation:
TCE _O
value_MAX value_MIN
TempRange
(6) Gain error drift is calculated using the box method, as described by the following equation:
TCE _G ( ppm)
¨¨©§
value _MAX value _MIN
value u TempRange
¸¸¹· ^{u10 6}
Copyright © 2017, Texas Instruments Incorporated
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