AD7631BCPZ Analog Devices Inc, AD7631BCPZ Datasheet - Page 4

• Manufacturer Part Number: AD7631BCPZ
• Description: IC,A/D CONVERTER,SINGLE,18-BIT,CMOS,LLCC,48PIN
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7631BCPZ

• Number Of Bits: 18
• Sampling Rate (per Second): 250k
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 120mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-VFQFN, CSP Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7631
Parameter
INTERNAL REFERENCE
REFERENCE BUFFER
EXTERNAL REFERENCE
TEMPERATURE PIN
DIGITAL INPUTS
DIGITAL OUTPUTS
POWER SUPPLIES
TEMPERATURE RANGE
1
2
3
4
5
6
7
8
9
10
In all input ranges, the input current scales with throughput. See the Analog Inputs section.
Linearity is tested using endpoints, not best fit. All linearity is tested with an external 5 V reference.
LSB means least significant bit. All specifications in LSB do not include the error contributed by the reference.
All specifications in decibels are referred to a full-scale range input, FSR. Tested with an input signal at 0.5 dB below full-scale, unless otherwise specified.
Conversion results are available immediately after completed conversion.
4.75 V or V
Tested in parallel reading mode.
With internal reference, PDREF = PDBUF = low; with internal reference disabled, PDREF = PDBUF = high. With internal reference buffer, PDBUF = low.
With all digital inputs forced to OVDD.
Consult sales for extended temperature range.
Output Voltage
Temperature Drift
Line Regulation
Long-Term Drift
Turn-On Settling Time
REFBUFIN Input Voltage Range
Voltage Range
Current Drain
Voltage Output
Temperature Sensitivity
Output Resistance
Logic Levels
Data Format
Pipeline Delay
Specified Performance
Specified Performance
Operating Current
Power Dissipation
In Power-Down Mode
AVDD
V
V
I
I
V
V
AVDD
DVDD
OVDD
VCC
VEE
DVDD
OVDD
VCC
VEE
With Internal Reference
With Internal Reference Disabled
IL
IH
IL
IH
OL
OH
With Internal Reference
With Internal Reference Disabled
REF
− 0.1 V, whichever is larger.
5
7
10
9
8
8
8
8
Conditions/Comments
PDREF = PDBUF = low
REF @ 25°C
–40°C to +85°C
AVDD = 5 V ± 5%
1000 hours
C
PDREF = high
PDREF = PDBUF = high
REF
250 kSPS throughput
@ 25°C
Parallel or serial 18-bit
I
I
@ 250 kSPS throughput
VCC = 15 V, with internal reference buffer
VCC = 15 V
VEE = −15 V
@ 250 kSPS throughput
PD = high
T
SINK
SOURCE
MIN
REF
= 500 μA
= 22 μF
to T
= −500 μA
MAX
Rev. A | Page 4 of 32
Min
4.965
−0.3
2.1
−1
−1
OVDD − 0.6
4.75
4.75
2.7
−15.75
−40
2.4
4.75
7
6
Typ
5.000
±3
±15
50
10
2.5
5
250
311
1
4.33
5
5
15
−15
8.5
6.1
4
0.1
1.4
0.8
0.7
94
73
10
Max
5.035
+0.6
OVDD + 0.3
+1
+1
0.4
5.25
5.25
5.25
15.75
0
120
100
+85
2.6
AVDD + 0.1
Unit
V
ppm/°C
ppm/V
ppm
ms
V
V
μA
mV
mV/°C
kΩ
V
V
μA
μA
V
V
V
V
V
V
V
mA
mA
mA
mA
mA
mA
mA
mW
mW
μW
°C