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| ADC10731_14 Datasheet, PDF (6/34 Pages) Texas Instruments – 10-Bit Plus Sign Serial I/O A/D Converters with Mux, Sample/Hold and Reference | |||
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ADC10731, ADC10732, ADC10734, ADC10738
SNAS081D â MAY 1999 â REVISED MARCH 2013
www.ti.com
Electrical Characteristics (continued)
The following specifications apply for V+ = AV+ = DV+ = +5.0 VDC, VREF+ = 2.5 VDC, VREFâ = GND, VINâ = 2.5V for Signed
Characteristics, VINâ = GND for Unsigned Characteristics and fCLK = 2.5 MHz unless otherwise specified. Boldface limits
apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = +25°C.(1)(2)(3)(4)
Parameter
Test Conditions
Typ (5)
Limits (6)
Units
(Limits)
DYNAMIC UNSIGNED CONVERTER CHARACTERISTIC
VREF+ = 4.096V,
S/(N+D) Signal-to-Noise Plus Distortion Ratio
VIN = 4.0 VPP, and
60
dB
fIN =1 kHz to 15 kHz
ENOB Effective Bits
VREF+ = 4.096V,
VIN = 4.0 VPP, and
9.8
Bits
fIN = 1 kHz to 15 kHz
THD
Total Harmonic Distortion
VREF+ = 4.096V,
VIN = 4.0 VPP, and
â70
dB
fIN = 1 kHz to 15 kHz
IMD
Intermodulation Distortion
VREF+ = 4.096V,
VIN = 4.0 VPP, and
â73
dB
fIN = 1 kHz to 15 kHz
Full-Power Bandwidth
VIN = 4.0 VPP,
VREF+ = 4.096V,
where S/(N+D) decreases
380
kHz
3 dB
Multiplexer Chan to Chan Crosstalk
fIN = 15 kHz,
VREF+ = 4.096V
â80
dB
REFERENCE INPUT AND MULTIPLEXER CHARACTERISTICS
7
kΩ
Reference Input Resistance
5.0
kΩ(min)
9.5
kΩ(max)
CREF
Reference Input Capacitance
MUX Input Voltage
70
pF
â50
mV (min)
AV+ + 50mV (max)
CIM
MUX Input Capacitance
Off Channel Leakage Current(9)
47
pF
On Channel = 5V and
Off Channel = 0V
â0.4
â3.0
μA (max)
On Channel = 0V and
Off Channel = 5V
0.4
3.0
μA (max)
On Channel Leakage Current(9)
On Channel = 5V and
Off Channel = 0V
0.4
3.0
μA (max)
On Channel = 0V and
Off Channel = 5V
â0.4
â3.0
μA (max)
REFERENCE CHARACTERISTICS
VREFOut
ÎVREF/Î
T
Reference Output Voltage
VREFOut Temperature Coefficient
2.5V ±0.5%
±40
2.5V ±2%
V (max)
ppm/°C
ÎVREF/ÎI
L
ÎVREF/ÎI
L
Load Regulation, Sourcing
Load Regulation, Sinking
Line Regulation
0 mA ⤠IL ⤠+4 mA
0 mA ⤠IL ⤠â1 mA
5V ±10%
±0.003
±0.2
±0.3
±0.05
±0.6
±2.5
%/mA
(max)
%/mA
(max)
mV (max)
ISC
Short Circuit Current
Noise Voltage
ÎVREF/Ît Long-term Stability
tSU
Start-Up Time
VREFOut = 0V
10 Hz to 10 kHz,
CL = 100 μF
CL = 100 μF
13
5
±120
100
22
mA (max)
μV
ppm/kHr
ms
(9) Channel leakage current is measured after the channel selection.
6
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Copyright © 1999â2013, Texas Instruments Incorporated
Product Folder Links: ADC10731 ADC10732 ADC10734 ADC10738
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