TLC4545ID Datasheet, PDF (5/26 Pages) Texas Instruments – 5-V, LOW POWER, 16-BIT, 200-KSPS SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO-POWER DOWN

TLC4541, TLC4545
SLAS293 − DECEMBER 2001
electrical characteristics over recommended operating free-air temperature range,
V_DD = 5 V, V_REF = 4.096 V, SCLK frequency = 15 MHz (unless otherwise noted)
VOH
VOL
IOZ
IIH
IIL
ICC
PARAMETER
High-level output voltage
Low-level output voltage
Off-state output current
(high-impedance-state)
High-level input current
Low-level input current
Operating supply current
ICC(PD) Power-down supply current
Selected analog input channel
leakage current
Ci
Input capacitance
TEST CONDITIONS
VDD = 4.5 V,
IOH = −0.2 mA
VDD = 4.5 V,
IOL = 0.8 mA
VO = VDD,
CS = VDD
VO = 0,
CS = VDD
VI = VDD
VI = 0
CS at 0 V,
VDD = 4.5 V to 5.5 V
For all digital inputs, 0≤ VI ≤ 0.3 V or
VI ≥ VDD − 0.3 V, SCLK=VDD,
VDD = 4.5 V to 5.5 V
Selected channel at VDD
Selected channel at 0 V
Analog inputs
Control Inputs
MIN TYP
3.9
1
−1
0.005
−0.005
3
11
20
Zi
Input resistance
VDD = 5.5 V
MAX
0.4
2.5
−2.5
2.5
2.5
3.5
5
1
−1
14
25
500
UNIT
V
V
µA
µA
µA
mA
µA
µA
pF
Ω
ac specifications (TLC4541/45)
PARAMETER
SINAD Signal-to-noise ratio + distortion
SNR Signal-to-noise ratio
THD Total harmonic distortion
ENOB Effective number of bits
SFDR Spurious free dynamic range
Full power bandwidth, −3 dB, analog input
Full power bandwidth, −1 dB, analog input
Crosstalk
TLC4541
TLC4545
TLC4541
TLC4545
TEST CONDITIONS
fI = 15 kHz at 200 KSPS
fI = 15 kHz at 200 KSPS
fI = 15 kHz at 200 KSPS
fI = 15 kHz at 200 KSPS
fI = 15 kHz at 200 KSPS
fI = 15 kHz at 200 KSPS
fI = 15 kHz at 200 KSPS
0.25 LBS
MIN TYP MAX UNIT
84.5
dB
85
−94 −87
dB
−94 −89
13.7
Bits
−95 −87
dB
−95 −89
1
MHz
500
kHz
80
dB
dc specifications (TLC4541/45)
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
INL
Integral linearity error (see Note 1)
−2.5
2.5 LSB
DNL
Differential linearity error
−1
2 LSB
EO
Offset error (see Note 2)
TLC4541
TLC4545
−3.5
3.5
mV
−1
1
EG
Gain error (see Note 2)
TLC4541
TLC4545
−2
2
mV
−1.8
1.8
† _{All typical values are at VDD = 5 V, TA = 25°C.}
NOTES: 1. Linear error is the maximum deviation from the best straight line through the A/D transfer characteristics.
2. Zero error is the difference between 0000h and the converted output for zero input voltage: full-scale error is the difference between
ideal full-scale and the converted output for full-scale input voltage.
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