AMC1306E05_017 Datasheet, PDF (9/38 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
7.10 Electrical Characteristics: AMC1306x25
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 = –250 mV to 250 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⁾
AINP – AINN
AINP – AINN
(AINP + AINN) / 2 to AGND
–250
–2
±320
mV
250
mV
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
–0.16
AVDD – 2
–82
50
AVDD – 2.1
2
1
–60
–48
19
22
±5
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}
–95
dB
–95
900
kHz
DC ACCURACY
DNL
INL
Differential nonlinearity
Integral nonlinearity⁽⁴⁾
Resolution: 16 bits
Resolution: 16 bits
–0.99
–4
0.99
LSB
±1
4
LSB
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
–100
–1
–0.2%
–40
±4.5
±0.15
±0.005%
±20
–103
–92
100
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
82
86
81.9
85.7
–98
–93
83
100
dB
dB
–86
dB
–85
dB
(1) Steady-state voltage supported by the device in case of a system failure; see the specified common-mode input voltage V_CM for normal
operation. Adhere to the 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 parameter is the –3-dB, second-order, roll-off frequency of the integrated differential input amplifier to consider for antialiasing filter
designs.
(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 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: ^TCEO
value_MAX value_MIN
TempRange _.
(6)
TCE _G ( ppm)
Gain error drift is calculated using the box method, as described by the following equation:
¨¨©§
value _MAX value _MIN
value u TempRange
¸¸¹· ^{u10 6}
.
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