AD7870SQ Analog Devices Inc, AD7870SQ Datasheet - Page 4

• 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)

AD7870/AD7875/AD7876
Parameter
CONVERSION TIME
POWER REQUIREMENTS
1
2
3
4
5
6
AD7875/AD7876 SPECIFICATIONS
Table 2.
Parameter
DC ACCURACY
DYNAMIC PERFORMANCE
The temperature range for the J, K, and L versions is from 0°C to +70°C; for the A, B, and C versions is−40°C to +85°C; and for the T version is −55°C to +125°C.
V
SNR calculation includes distortion and noise components.
Measured with respect to internal reference and includes bipolar offset error.
Sample tested @ +25°C to ensure compliance.
Conversion time specification for the AD7870A device with internal clock used is 8 μs/10 μs minimum/maximum.
IN
External Clock (f
Internal Clock
V
V
I
I
Power Dissipation
Resolution
Min Resolution for which No Missing
Integral Nonlinearity @ +25°C
Differential Nonlinearity
Unipolar Offset Error (AD7875 Only)
Bipolar Zero Error (AD7876 Only)
Full-Scale Error at +25°C
Full-Scale TC
Track-and-Hold Acquisition Time
ONLY)
Signal-to-Noise Ratio
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Intermodulation Distortion (IMD)
DD
SS
(p-p) = ±3 V.
DD
SS
Codes Are Guaranteed
T
T
@ +25°C
T
Second Order Terms
Third Order Terms
MIN
MIN
MIN
to T
to T
to T
MAX
MAX
MAX
2
(AD7875 Only)
(AD7876 Only)
6
CLK
= 2.5 MHz)
4
(SNR)
3
2
(AD7875
K, B
12
12
±1
±1
±1
±1
±5
±6
±8
±60
2
70
70
−80
−80
−80
−80
AD7875/AD7876
J, A
8
6.5/9
+5
−5
13
6
95
L, C
12
12
±1/2
±1
±1/2
±1
±5
±2
±8
±35
2
72
71
−80
−80
−80
−80
K, B
8
6.5/9
+5
−5
13
6
95
Rev. C | Page 4 of 28
ADN7870
T
12
12
±1
±1
±1
±1.5/−1.0
±5
±6
±8
±60
2
69
69
−78
−78
−78
−78
1
L, C
8
6.5/9
+5
−5
13
6
95
1
Units
Bits
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
ppm/°C max
μs max
dB min
dB min
dB max
dB max
dB max
dB max
T
8
6.5/9
+5
−5
13
6
95
Units
μs max
μs min/
μs max
V nom
V nom
mA max
mA max
mW max
Test Conditions/Comments
Typical full-scale error is ±1 LSB
Typical TC is ±20 ppm/°C
V
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
IN
IN
IN
= 10 kHz sine wave, f
= 10 kHz sine wave, f
= 10 kHz, f
Test Conditions/Comments
±5% for specified performance
±5% for specified performance
Typically 8 mA
Typically 4 mA
Typically 60 mW
SAMPLE
= 100 kHz
SAMPLE
SAMPLE
SAMPLE
SAMPLE
IN
IN
IN
< 50 kHz
< 50 kHz
< 50 kHz
= 100 kHz
= 100 kHz
= 50 kHz
= 50 kHz