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AD7658BSTZ Datasheet(PDF) 5 Page - Analog Devices

Part # AD7658BSTZ
Description  250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7658BSTZ Datasheet(HTML) 5 Page - Analog Devices

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Preliminary Technical Data
AD7658/AD7657/AD7656
Rev. PrI | Page 5 of 25
AD7657 SPECIFICATIONS1
Table 2. AVCC = 4.5 V to 5.5 V, VDD = 9.5 V to 16.5 V, VSS = -9.5 V to -16.5V, DVCC = 4.5 V to 5.5 V, VDRIVE = 2.7V to 5.25V, fSAMPLE =
250 kSPS, VREF = 2.5V Internal/External, unless otherwise noted; TA = TMIN to TMAX, unless otherwise noted
Parameter
B Versions1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 50 kHz sine wave
Signal-to-Noise + Distortion (SINAD2
81
dB min
Signal-to-Noise Ratio (SNR)2
82
dB min
83
dB typ
Total Harmonic Distortion (THD)2
−97
dB typ
Peak Harmonic or Spurious Noise (SFDR)2
−95
dB typ
Intermodulation Distortion (IMD)2
Second-Order Terms
−94
dB typ
Third-Order Terms
−100
dB typ
Aperture Delay
20
ns max
Aperature Delay Matching
2
ns max
100
ps typ
Aperture Jitter
30
ps typ
Full Power Bandwidth
8
MHz typ
@ −3 dB
2.2
MHz typ
@ −0.1 dB
DC ACCURACY
No Missing Codes
14
Bits min
Integral Nonlinearity2
±1.5
LSB typ
Positive Full Scale Error2
±0.4
% FS max
Bipolar Zero Error2
±2.1
mV max
VDD = 5.5 V
Negative Full Scale Error2
±0.4
% FS max
ANALOG INPUT
Input Voltage Ranges
±4xVREF
V
RNG bit/RANGE pin = 0
±2xVREF
V
RNG bit/RANGE pin = 1
DC Leakage Current
±0.3
µA max
Input Capacitance
30
pF typ
REFERENCE INPUT/OUTPUT
Reference output voltage
2.49/2.51
V min/max
Reference input Voltage range
2.5/3
V min/max
DC Leakage current
±0.5
µA max
VREF Pin
Input capacitance
20
pF typ
VREF Output Impedance
1
kOhms typ
Reference temperature Coefficient
25
ppm/°C max
10
ppm/°C typ
LOGIC INPUTS
Input High Voltage, VINH
0.7 x VDRIVE
V min
Input Low Voltage, VINL
0.3 x VDRIVE
V max
Input Current, IIN
±0.3
µA max
Typically 10 nA, VIN = 0 V or VCC
Input Capacitance, CIN 3
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE – 0.2
V min
ISOURCE = 200 µA;
Output Low Voltage, VOL
0.4
V max
ISINK = 200 µA
Floating-State Leakage Current
±0.3
µA max
Floating-State Output Capacitance 3
10
pF max
Output Coding
Two’s Complement
CONVERSION RATE
Conversion Time
3
µs max
Track-and-Hold Acquisition Time
500
ns max
Throughput Rate
250
kSPS
POWER REQUIREMENTS


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