AD7874AR Analog Devices Inc, AD7874AR Datasheet - Page 2

• Manufacturer Part Number: AD7874AR
• Description: A/D Converter (A-D) IC
• Manufacturer: Analog Devices Inc
• Type: Data Acquisition System (DAS)r

Specifications of AD7874AR

• Package/case: 28-SOIC
• Features: 4?Ch., Simultaneous Sampl., Data Acquis. Syst.
• Interface Type: Parallel
• Leaded Process Compatible: No
• Number Of Bits: 12
• Number Of Channels: 4
• Rohs Status: RoHS non-compliant
• Resolution (bits): 12 b
• Sampling Rate (per Second): 116k
• Data Interface: Parallel
• Voltage Supply Source: Dual ±
• Voltage - Supply: 5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Parameter
SAMPLE-AND-HOLD
SAMPLE-AND-HOLD AND ADC
DC ACCURACY
ANALOG INPUTS
REFERENCE OUTPUTS
REFERENCE INPUT
LOGIC INPUTS
LOGIC OUTPUTS
POWER REQUIREMENTS
NOTES
1
2
3
4
5
Specifications subject to change without notice.
AD7874–SPECIFICATIONS
Temperature ranges are as follows: A, B Versions: –40 C to +85 C; S Version: –55 C to +125 C.
See Terminology.
Sample tested @ +25 C to ensure compliance.
Measured with respect to the REF IN voltage and includes bipolar offset error.
For capacitive loads greater than 50 pF a series resistor is required.
Acquisition Time
Droop Rate
–3 dB Small Signal Bandwidth
Aperture Delay
Aperture Jitter
Aperture Delay Matching
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Intermodulation Distortion
Channel-to-Channel Isolation
Resolution
Relative Accuracy
Differential Nonlinearity
Positive Full-Scale Error
Negative Full-Scale Error
Full-Scale Error Match
Bipolar Zero Error
Bipolar Zero Error Match
Input Voltage Range
Input Current
REF OUT
REF OUT Error @ +25 C
REF OUT Temperature Coefficient
Reference Load Change
Input Voltage Range
Input Current
Input Capacitance
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
DB0–DB11
V
V
I
I
Power Dissipation
DD
SS
DD
SS
2nd Order Terms
3rd Order Terms
T
Floating-State Leakage Current
Floating-State Output Capacitance 10
Output Coding
MIN
to T
2, 3
MAX
2, 3
2
IN
2
3
to 0.01%
IN
INL
INH
3
OL
OH
4
2
4
2
3
A Version B Version S Version Units
2
1
500
0
40
200
4
70
–78
–78
–80
–80
–80
12
5
4
3
2.85/3.15
10
2.4
0.8
10
4.0
0.4
+5
–5
18
12
150
1
1
5
5
5
10
600
0.33
1
35
1
1
10
10
2s COMPLEMENT
2
1
500
0
40
200
4
71
–80
–80
–80
–80
–80
12
5
4
3
2.85/3.15
10
2.4
0.8
10
4.0
0.4
10
+5
–5
18
12
150
1/2
1
5
5
5
10
600
0.33
1
35
1
1
10
10
(V
external. All specifications T
DD
500
200
–78
–78
–80
–80
10
2
2
0
40
4
70
–80
12
5
4
3
2.85/3.15
10
2.4
0.8
10
4.0
0.4
+5
–5
18
12
150
= +5 V, V
1
1
5
5
5
10
600
0.33
1
35
2
1
10
10
–2–
SS
mV/ms max
kHz typ
ns min
ns max
ps typ
ns max
dB min
dB max
dB max
dB max
dB max
dB max
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
Volts
V nom
% max
% max
ppm/ C typ
mV max
V min/V max 3 V
pF max
V min
V max
pF max
V min
V max
pF max
V nom
V nom
mA max
mA max
mW max
= –5 V, AGND = DGND = 0 V, REF IN = +3 V, f
s max
A max
A max
A max
A max
MIN
Test Conditions/Comments
V
f
f
f
fa = 9 kHz, fb = 9.5 kHz, f
No Missing Codes Guaranteed
Any Channel
Any Channel
Between Channels
Any Channel
Between Channels
Reference Load Current Change (0–500 A)
Reference Load Should Not Be Changed During Conversion
V
V
V
V
V
V
CS = RD = CONVST = +5 V; Typically 12 mA
CS = RD = CONVST = +5 V; Typically 8 mA
CS = RD = CONVST = +5 V; Typically 100 mW
IN
IN
IN
5% for Specified Performance
5% for Specified Performance
IN
DD
DD
IN
DD
DD
IN
to T
= 10 kHz Sine Wave, f
= 10 kHz Sine Wave, f
= 10 kHz Sine Wave, f
= 500 mV p-p
= 0 V to V
= 0 V to V
= 5 V
= 5 V
= 5 V
= 5 V
5%
MAX
unless otherwise noted.)
5%
5%
5%; I
5%; I
DD
DD
SOURCE
SINK
= 1–6 mA
SAMPLE
SAMPLE
SAMPLE
= 40 A
SAMPLE
= 29 kHz
= 29 kHz
= 29 kHz
= 29 kHz
CLK
= 2.5 MHz
REV. C