ADS8326 Datasheet, PDF (3/31 Pages) Burr-Brown (TI) – 16-Bit, High-Speed, 2.7V to 5.5V microPower Sampling

ADS8326
www.ti.com
DISSIPATION RATINGS
PACKAGE
DGK
DRB ⁽¹⁾
R_θJC
+39.1°C/W
+5°C/W
R_θJA
+206.3°C/W
+45.8°C/W
DERATING
FACTOR ABOVE
T_A = +25°C
4.847mW/°C
3.7mW/°C
(1) DRB (SON-8) package available Q4, 2007.
RECOMMENDED OPERATING CONDITIONS
Supply voltage, GND to V_DD
Supply voltage, GND to V_DD
Reference input voltage
Analog input voltage
Operating junction temperature, T_J
Low-voltage levels
5V logic levels
–IN to GND
+IN to GND
+IN – (–IN)
T_A ≤ +25°C
POWER RATING
606mW
370mW
MIN
2.7
4.5
0.1
–0.3
–0.3
0
–40
SBAS343 – MAY 2007
T_A = +70°C
POWER RATING
388mW
204mW
T_A = +85°C
POWER RATING
315mW
148mW
TYP
5.0
0
MAX
3.6
5.5
V_DD
0.5
V_DD + 0.2
V_REF
+125
UNIT
V
V
V
V
V
°C
ELECTRICAL CHARACTERISTICS: V_DD = +5V
At –40°C to +85°C, V_REF = +5V, –IN = GND, f_SAMPLE = 250kHz, and f_DCLOCK = 24 × f_SAMPLE, unless otherwise noted.
ADS8326I
ADS8326IB
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
ANALOG INPUT
Full-scale range
FSR +IN – (–IN)
Operating common-mode signal
0
–0.3
V_REF
0.5
0
–0.3
V_REF
0.5
Input resistance
–IN = GND, off
R_ON
–IN = GND, on
5
50
100
5
50
100
Input capacitance
–IN = GND, during sampling
48
48
Input leakage current
–IN = GND
±50
±50
Differential input capacitance
+IN to –IN, during sampling
20
20
Full-power bandwidth
FSBW
FS sinewave, SINAD =
–60dB
500
500
DC ACCURACY
Resolution
16
16
No missing codes
NMC
16
16
Integral linearity error
INL
–3
±2
+3
–1.5
±1
+1.5
Differential linearity error
DNL
–1
±0.5
+2
–1
±0.4
+1
Offset error
Offset error drift
Gain error
Gain error drift
Noise
V_OS
TCV_OS
G_ERR
TCG_ERR
–1.5
±0.75
+1.5
–1
±0.5
+1
±0.2
±0.2
–24
+24
–12
+12
±0.3
±0.3
30
30
Power-supply rejection
4.75V ≤ V_DD ≤ 5.25V
0.5
0.5
SAMPLING DYNAMICS
Conversion time
(16 DCLOCKs)
t_CONV 24kHz ≤ f_DCLOCK ≤ 6MHz
2.667
666.7
2.667
666.7
Acquisition time
(4.5 DCLOCKs)
t_AQ f_DCLOCK = 6MHz
0.75
0.75
Throughput rate
(22 DCLOCKs)
250
250
Clock frequency
f_DCLOCK
0.024
6
0.024
6
UNIT
V
V
GΩ
Ω
pF
nA
pF
kHz
Bits
Bits
LSB
LSB
mV
ppm/°C
LSB
ppm/°C
µVRMS
LSB
µs
µs
kSPS
MHz
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