Datasheet

ADC78H89
SNAS201D –APRIL 2003–REVISED MARCH 2013 www.ti.com
ADC78H89 CONVERTER ELECTRICAL CHARACTERISTICS
(1)
The following specifications apply for AV
DD
= DV
DD
= +2.7V to 5.25V, f
SCLK
= 8 MHz, f
SAMPLE
= 500 KSPS unless otherwise
noted. Boldface limits apply for T
A
= T
MIN
to T
MAX
: all other limits T
A
= 25°C.
Symbol Parameter Conditions Typical Limits Units
(2)
STATIC CONVERTER CHARACTERISTICS
Resolution with No Missing Codes AV
DD
= +5.0V, DV
DD
= +3.3V 12 Bits
INL Integral Non-Linearity AV
DD
= +5.0V, DV
DD
= +3.3V ±1 LSB (max)
DNL Differential Non-Linearity AV
DD
= +5.0V, DV
DD
= +3.3V ±1 LSB (max)
OE Offset Error AV
DD
= +5.0V, DV
DD
= +3.3V ±2 LSB (max)
OEM Offset Error Match AV
DD
= +5.0V, DV
DD
= +3.3V ±2 LSB (max)
GE Gain Error AV
DD
= +5.0V, DV
DD
= +3.3V ±3 LSB (max)
GEM Gain Error Match AV
DD
= +5.0V, DV
DD
= +3.3V ±3 LSB (max)
DYNAMIC CONVERTER CHARACTERISTICS
AV
DD
= +5.0V, DV
DD
= +3.0V,
SINAD Signal-to-Noise Plus Distortion Ratio 72.6 dB
f
IN
= 40.2 kHz, −0.02 dBFS
AV
DD
= +5.0V, DV
DD
= +3.0V,
SNR Signal-to-Noise Ratio 72.8 dB
f
IN
= 40.2 kHz, −0.02 dBFS
AV
DD
= +5.0V, DV
DD
= +3.0V,
THD Total Harmonic Distortion -86 dB
f
IN
= 40.2 kHz, −0.02 dBFS
AV
DD
= +5.0V, DV
DD
= +3.0V,
SFDR Spurious-Free Dynamic Range 88 dB
f
IN
= 40.2 kHz, −0.02 dBFS
AV
DD
= +5.0V, DV
DD
= +3.0V,
ENOB Effective Number of Bits 11.8 bits
f
IN
= 40.2 kHz, −0.02 dBFS
AV
DD
= +5.0V, DV
DD
= +3.0V,
Channel-to-Channel Crosstalk -82 dB
f
IN
= 40.2 kHz
Intermodulation Distortion, Second Order AV
DD
= +5.0V, DV
DD
= +3.0V,
-93 dB
Terms f
a
= 40.161 kHz, f
b
= 41.015 kHz
IMD
Intermodulation Distortion, Third Order AV
DD
= +5.0V, DV
DD
= +3.0V,
-90 dB
Terms f
a
= 40.161 kHz, f
b
= 41.015 kHz
AV
DD
= +5V 11 MHz
FPBW -3 dB Full Power Bandwidth
AV
DD
= +3V 8 MHz
ANALOG INPUT CHARACTERISTICS
0 to
V
IN
Input Range V
AV
DD
I
DCL
DC Leakage Current ±1 µA (max)
In Track Mode 33 pF
C
INA
Input Capacitance
In Hold Mode 3 pF
DIGITAL INPUT CHARACTERISTICS
DV
DD
= +4.75Vto +5.25V 2.4 V (min)
V
IH
Input High Voltage
DV
DD
= +2.7V to +3.6V 2.1 V (min)
V
IL
Input Low Voltage DV
DD
= +2.7V to +5.25V 0.8 V (max)
I
IN
Input Current V
IN
= 0V or DV
DD
±0.01 1 µA (max)
C
IND
Input Capacitance 2 4 pF (max)
DIGITAL OUTPUT CHARACTERISTICS
I
SOURCE
= 200 µA,
V
OH
Output High Voltage DV
DD
−0.5 V (min)
DV
DD
= +2.7V to +5.25V
V
OL
Output Low Voltage I
SINK
= 200 µA 0.4 V (max)
I
OZH
, I
OZL
TRI-STATE Leakage Current ±1 µA (max)
C
OUT
TRI-STATE Output Capacitance 2 4 pF (max)
Output Coding Straight (Natural) Binary
(1) Data sheet min/max specification limits are specified by design, test, or statistical analysis.
(2) Tested limits are specified to AOQL (Average Outgoing Quality Level).
4 Submit Documentation Feedback Copyright © 2003–2013, Texas Instruments Incorporated
Product Folder Links: ADC78H89