Datasheet

ADS8364
3
SBAS219C
www.ti.com
ELECTRICAL CHARACTERISTICS
Over recommended operating free-air temperature range at –40°C to +85°C, AV
DD
= DV
DD
= 5V, BV
DD
= 3V, V
REF
= internal +2.5V, f
CLK
= 5MHz, f
SAMPLE
= 250kSPS,
unless otherwise noted.
ADS8364Y
PARAMETER CONDITIONS MIN TYP
(1)
MAX UNITS
ANALOG INPUT
Full-Scale Range (FSR) +IN – (–IN) ±V
REF
V
Operating Common-Mode Signal 2.2 2.8 V
Input Resistance –IN = V
REF
20 Ω
Input Capacitance –IN = V
REF
25 pF
Input Leakage Current –IN = V
REF
±1nA
Differential Input Resistance –IN = V
REF
40 Ω
Differential Input Capacitance –IN = V
REF
50 pF
Common-Mode Rejection Ratio (CMRR) At DC 84 dB
V
IN
= ±1.25V
PP
at 50kHz 80 dB
Bandwith (BW) FS Sinewave, –3dB 300 MHz
DC ACCURACY
Resolution 16 Bits
No Missing Codes (NMC) 14 Bits
Integral Linearity Error (INL) ±3 ±8LSB
Integral Linearity Match Only pair wise matching 1.5 LSB
Differential Nonlinearity (DNL) Specified only for 14-Bit ±1.5 LSB
Bipolar Offset Error (V
OS
) ±0.05 ±2mV
Bipolar Offset Error Match Only pair wise matching 0.2 1 mV
Bipolar Offset Error Drift (TCV
OS
) 0.8 ppm/°C
Gain Error (G
ERR
) Referenced to V
REF
±0.05 ±0.25 %FSR
Gain Error Match Only pair wise matching 0.005 0.05 %FSR
Gain Error Drift (TCG
ERR
) 2 ppm/°C
Noise 120 µV
RMS
Power-Supply Rejection Ratio (PSRR) 4.75V < AV
DD
< 5.25V –87 dB
SAMPLING DYNAMICS
Conversion Time per ADC (t
CONV
) 50kHz ≤ f
CLK
≤ 5MHz 3.2 320 µs
Acquisition Time (t
AQ
)f
CLK
= 5MHz 800 ns
Throughput Rate 250 kSPS
Aperture Delay 5ns
Aperture Delay Matching 100 ps
Aperture Jitter 50 ps
Clock Frequncy 0.05 5 MHz
AC ACCURACY
Total Harmonic Distortion (THD) V
IN
= ±2.5V
PP
at 100kHz –92 dB
Spurous-Free Dynamic Range (SFDR) V
IN
= ±2.5V
PP
at 100kHz 93.5 dB
Signal-to-Noise Ratio (SNR) V
IN
= ±2.5V
PP
at 100kHz 83.2 dB
Signal-to-Noise Ratio + Distortion (SINAD) V
IN
= ±2.5V
PP
at 100kHz 82.5 dB
Channel-to-Channel Isolation V
IN
= ±2.5V
PP
at 50kHz 95 dB
Effective Number of Bits (ENOB) 13.3 Bits
VOLTAGE REFERENCE OUTPUT
Reference Voltage Output (V
OUT
) 2.475 2.5 2.525 V
Initial Accuracy ±1%
Output Voltage Temperature Drift (dV
OUT
/dT) ±20 ppm/°C
Output Voltage Noise
f = 0.1Hz to 10Hz, C
L
= 10µF 40 µV
PP
f = 10Hz to 10kHz, C
L
= 10µF 8 µVRMS
Power-Supply Refection Ratio (PSRR) 60 dB
Output Current (I
OUT
)10µA
Short-Circuit Current (I
SC
) 0.5 mA
Turn-On Settling Time to 0.1% at C
L
= 0 100 µs
VOLTAGE REFERENCE INPUT
Reference Voltage Input (V
IN
) 1.5 2.5 2.6 V
Reference Input Resistance 100 MΩ
Reference Input Capacitance 5pF
Reference Input Current 1 µA
NOTE: (1) All values are at T
A
= +25°C.