AD7870SQ Analog Devices Inc, AD7870SQ Datasheet - Page 3

• Manufacturer Part Number: AD7870SQ
• Description: IC ADC 12BIT SAMPLING 3V 24-CDIP
• Manufacturer: Analog Devices Inc

Specifications of AD7870SQ

• Rohs Status: RoHS non-compliant
• Number Of Bits: 12
• Sampling Rate (per Second): 100k
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 95mW
• Voltage Supply Source: Dual ±
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 24-CDIP (0.300", 7.62mm)

SPECIFICATIONS
V
T
AD7870 SPECIFICATIONS
Table 1.
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
REFERENCE OUTPUT
LOGIC INPUTS
LOGIC OUTPUTS
max
DD
Signal-to-Noise Ratio
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Intermodulation Distortion (IMD)
Resolution
Minimum Resolution for which No Missing Codes
Integral Nonlinearity
Integral Nonlinearity
Differential Nonlinearity
Bipolar Zero Error
Positive Full-Scale Error
Negative Full-Scale Error
Input Voltage Range
Input Current
REF OUT @ +25°C
REF OUT Tempco
Reference Load Sensitivity
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Current (12/8/CLK Input Only)
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
DB11 to DB0
, unless otherwise noted.
= +5 V ± 5%, V
@ +25°C
T
Second Order Terms
Third Order Terms
Track-and-Hold Acquisition Time
are Guaranteed
(ΔREF OUT/ΔI)
Floating-State Leakage Current
Floating-State Output Capacitance
MIN
to T
MAX
IN
SS
= −5 V ± 5%, AGND = DGND = 0 V, f
3
INL
IN
INH
(SNR)
5
OL
OH
4
2
4
5
J, A
70
70
−80
−80
−80
−80
2
12
12
±1/2
±5
±5
±5
±3
±500
2.99
3.01
±60
±1
2.4
0.8
±10
±10
10
4.0
0.4
±10
15
CLK
K, B
70
70
−80
−80
−80
−80
2
12
12
±1/2
±1
±1
±5
±5
±5
±3
±500
2.99
3.01
±60
±1
2.4
0.8
±10
±10
10
4.0
0.4
±10
15
Rev. C | Page 3 of 28
ADN7870
= 2.5 MHz external, unless otherwise stated. All Specifications T
L, C
72
71
−80
−80
−80
−80
2
12
12
±1/4
±1/2
±1
±5
±5
±5
±3
±500
2.99
3.01
±35
±1
2.4
0.8
±10
±10
10
4.0
0.4
±10
15
1
T
69
69
−78
−78
−78
−78
2
12
±1
±5
±500
3.01
2.4
0.8
±10
±10
10
4.0
0.4
±10
15
12
±1/2
±1
±5
±5
±3
2.99
±35
±1
Units
dB min
dB min
dB max
dB max
dB max
dB max
μs max
Bits
Bits
LSB typ
LSB max
LSB max
LSB max
LSB max
LSB max
V
μA max
V min
V max
ppm/°C
max
mV max
V min
V max
μA max
μA max
pF max
V min
V max
μA max
pF max
Test Conditions/Comments
Typically 71.5 dB for 0 < V
V
Typically −86 dB for 0 < V
V
Typically −86 dB for 0 < V
fa = 9 kHz, fb = 9.5 kHz, f
fa = 9 kHz, fb = 9.5 kHz, f
Reference load current change (0 μA to
500 μA). Reference load should not be
changed during conversion.
V
V
V
V
I
I
V
SOURCE
SINK
AD7870/AD7875/AD7876
IN
IN
IN
DD
DD
IN
IN
= 10 kHz sine wave, f
= 10 kHz sine wave, f
= 10 kHz, f
= 0 V to V
= V
= 5 V ± 5%
= 5 V ± 5%
= 1.6 mA
= 40 μA
SS
to V
DD
DD
SAMPLE
= 100 kHz
SAMPLE
SAMPLE
SAMPLE
SAMPLE
IN
IN
IN
< 50 kHz
< 50 kHz
< 50 kHz
= 50 kHz
= 50 kHz
= 100 kHz
= 100 kHz
min
to