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AD7874AN View Datasheet(PDF) - Analog Devices

Part Name
Description
Manufacturer
AD7874AN Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
AD7874–SPECIFICATIONS (VDD = +5 V, VSS = –5 V, AGND = DGND = 0 V, REF IN = +3 V, fCLK = 2.5 MHz
external. All specifications TMIN to TMAX unless otherwise noted.)
Parameter
A Version B Version S Version Units
Test Conditions/Comments
SAMPLE-AND-HOLD
Acquisition Time2 to 0.01%
2
2
2
µs max
Droop Rate2, 3
1
1
2
mV/ms max
–3 dB Small Signal Bandwidth3
500
500
500
kHz typ
VIN = 500 mV p-p
Aperture Delay2
0
0
0
ns min
40
40
40
ns max
Aperture Jitter2, 3
Aperture Delay Matching2
200
200
200
ps typ
4
4
4
ns max
SAMPLE-AND-HOLD AND ADC
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio
70
71
70
dB min
fIN = 10 kHz Sine Wave, fSAMPLE = 29 kHz
Total Harmonic Distortion
–78
–80
–78
dB max
fIN = 10 kHz Sine Wave, fSAMPLE = 29 kHz
Peak Harmonic or Spurious Noise –78
–80
–78
dB max
fIN = 10 kHz Sine Wave, fSAMPLE = 29 kHz
Intermodulation Distortion
fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 29 kHz
2nd Order Terms
–80
–80
–80
dB max
3rd Order Terms
–80
–80
–80
dB max
Channel-to-Channel Isolation2
–80
–80
–80
dB max
DC ACCURACY
Resolution
Relative Accuracy
Differential Nonlinearity
Positive Full-Scale Error4
Negative Full-Scale Error4
Full-Scale Error Match
Bipolar Zero Error
Bipolar Zero Error Match
12
12
12
Bits
±1
± 1/2
±1
LSB max
±1
±1
±1
LSB max No Missing Codes Guaranteed
±5
±5
±5
LSB max Any Channel
±5
±5
±5
LSB max Any Channel
5
5
5
LSB max Between Channels
±5
±5
±5
LSB max Any Channel
4
4
4
LSB max Between Channels
ANALOG INPUTS
Input Voltage Range
Input Current
± 10
± 600
± 10
± 600
± 10
± 600
Volts
µA max
REFERENCE OUTPUTS
REF OUT
REF OUT Error @ +25°C
TMIN to TMAX
REF OUT Temperature Coefficient
Reference Load Change
3
± 0.33
±1
± 35
±1
3
± 0.33
±1
± 35
±1
3
± 0.33
±1
± 35
±2
V nom
% max
% max
ppm/°C typ
mV max
Reference Load Current Change (0–500 µA)
Reference Load Should Not Be Changed During Conversion
REFERENCE INPUT
Input Voltage Range
Input Current
Input Capacitance3
2.85/3.15 2.85/3.15 2.85/3.15 V min/V max 3 V ± 5%
±1
±1
±1
µA max
10
10
10
pF max
LOGIC INPUTS
Input High Voltage, VINH
2.4
Input Low Voltage, VINL
0.8
Input Current, IIN
± 10
Input Capacitance, CIN3
10
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
Output Low Voltage, VOL
0.4
DB0–DB11
Floating-State Leakage Current ± 10
Floating-State Output Capacitance 10
Output Coding
2.4
2.4
0.8
0.8
± 10
± 10
10
10
4.0
4.0
0.4
0.4
± 10
± 10
10
10
2s COMPLEMENT
V min
V max
µA max
pF max
V min
V max
µA max
pF max
VDD = 5 V ± 5%
VDD = 5 V ± 5%
VIN = 0 V to VDD
VDD = 5 V ± 5%; ISOURCE = 40 µA
VDD = 5 V ± 5%; ISINK = 1–6 mA
VIN = 0 V to VDD
POWER REQUIREMENTS
VDD
VSS
IDD
ISS
Power Dissipation
+5
+5
+5
V nom
± 5% for Specified Performance
–5
–5
–5
V nom
± 5% for Specified Performance
18
18
18
mA max
CS = RD = CONVST = +5 V; Typically 12 mA
12
12
12
mA max
CS = RD = CONVST = +5 V; Typically 8 mA
150
150
150
mW max CS = RD = CONVST = +5 V; Typically 100 mW
NOTES
1Temperature ranges are as follows: A, B Versions: –40°C to +85°C; S Version: –55°C to +125°C.
2See Terminology.
3Sample tested @ +25°C to ensure compliance.
4Measured with respect to the REF IN voltage and includes bipolar offset error.
5For capacitive loads greater than 50 pF a series resistor is required.
Specifications subject to change without notice.
–2–
REV. C
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