AD7885 AD [Analog Devices], AD7885 Datasheet - Page 2

• Manufacturer Part Number: AD7885
• Description: LC2MOS 16-Bit, High Speed Sampling ADCs
• Manufacturer: AD [Analog Devices]

= +3 V; AGND = DGND = GND = 0 V; f
Parameter
DC ACCURACY
DYNAMIC PERFORMANCE
CONVERSION TIME
ANALOG INPUT
REFERENCE INPUT
LOGIC INPUTS
LOGIC OUTPUTS
POWER REQUIREMENTS
NOTES
1
2
3
4
Specifications subject to change without notice.
AD7884/AD7885/AD7885A–SPECIFICATIONS
Temperature ranges are as follows: A, B Versions: –40 C to +85 C.
V
The AD7885AAP has the same specs as the AD7884AP. The AD7885ABP has the same specs as the AD7884BP.
Sample tested to ensure compliance.
IN
Resolution
Minimum Resolution for Which
Integral Nonlinearity
Positive Gain Error
Positive Gain Error
Bipolar Zero Error
Bipolar Zero Error
Bipolar Zero TC
Negative Gain Error
Negative Gain Error
Noise
Signal to (Noise + Distortion) Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Intermodulation Distortion (IMD)
Conversion Time
Acquisition Time
Throughput Rate
Voltage Range
Input Current
Reference Input Current
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
DB15–DB0
V
V
I
I
Power Supply Rejection Ratio
Power Dissipation
DD
SS
DD
SS
= 5 V.
No Missing Codes Are Guaranteed
Gain TC
Offset TC
2nd Order Terms
3rd Order Terms
Floating-State Leakage Current
Floating-State Output Capacitance
Gain/ V
Gain/ V
4
DD
SS
4
IN
4
IN
INL
INH
4
OL
OH
SAMPLE
4
A
Version
16
16
120
84
82
–88
–84
–88
–84
–84
166
2.4
0.8
10
4.0
0.4
10
15
+5
–5
35
30
86
86
325
5.3
2.5
= 166 kHz. All specifications T
0.03
2
0.05
8
0.03
2
5
3
4
5
10
1, 2, 3
B
Versions
16
16
120
84
82
–88
–84
–88
–84
–84
5.3
2.5
166
2.4
0.8
10
4.0
0.4
10
15
+5
–5
35
30
86
86
325
0.0075
0.03
0.05
2
0.05
0.15
8
0.03
0.05
2
5
3
4
5
10
1, 2, 3
–2–
Units
Bits
Bits
% FSR max
% FSR typ
% FSR max
ppm FSR/ C typ
% FSR typ
% FSR max
ppm FSR/ C typ
% FSR typ
% FSR max
ppm FSR/ C typ
dB min
dB typ
dB max
dB typ
dB max
dB typ
dB typ
kSPS max
Volts
Volts
mA max
mA max
V min
V max
pF max
V min
V max
pF max
V nom
V nom
mA max
mA max
dB typ
dB typ
mW max
MIN
V rms typ
s max
s max
A max
A max
to T
MAX
, unless otherwise noted.)
Input Signal: 5 V, 1 kHz Sine Wave
Input Signal: 5 V, 1 kHz Sine Wave
Test Conditions/Comments
Typically 0.003% FSR
AD7885AN/BN: 0.1% typ
AD7885BN: 0.2% max
AD7885AN/BN: 0.1% typ
AD7885BN: 0.2% max
78 V rms typical in 3 V Input Range
Input Signal: 5 V, 1 kHz Sine Wave, Typically 86 dB
Input Signal: 5 V, 12 kHz Sine Wave
Input Signal: 5 V, 12 kHz Sine Wave
f
f
There is an overlap between conversion and acquisition.
V
V
V
Input Level = 0 V to V
I
I
Typically 25 mA
Typically 25 mA
Typically 250 mW
A
A
SOURCE
SINK
5% for Specified Performance
5% for Specified Performance
REF
DD
DD
= 11.5 kHz, f
= 11.5 kHz, f
= 5 V
= 5 V
(V
+ S = +3 V
= 1.6 mA
DD
= 40 A
= +5 V
5%
5%
B
B
= 12 kHz, f
= 12 kHz, f
5%, V
DD
SS
= –5 V
SAMPLE
SAMPLE
= 166 kHz
= 166 kHz
5%, V
REV. C
REF
+S