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AD977BR Datasheet(PDF) 2 Page - Analog Devices

Part # AD977BR
Description  16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converter
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD977BR Datasheet(HTML) 2 Page - Analog Devices

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AD977/AD977A
–2–
REV. D
A Grade
B Grade
C Grade
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
RESOLUTION
16
16
16
Bits
ANALOG INPUT
Voltage Range
±10 V, 0 V to 5 V, . . . (See Table II)
Impedance
See Table II
Sampling Capacitance
40
40
40
pF
THROUGHPUT SPEED
Complete Cycle
10
10
10
µs
Throughput Rate
100
100
100
kHz
DC ACCURACY
Integral Linearity Error
±3
±2.0
±3
LSB
1
Differential Linearity Error
–2
+3
–1
+1.75
±2
LSB
No Missing Codes
15
16
15
Bits
Transition Noise
2
1.0
1.0
1.0
LSB
Full-Scale Error
3, 4
±0.5
±0.25
±0.5
%
Full-Scale Error Drift
±7
±7
±7
ppm/
°C
Full-Scale Error
Ext. REF = 2.5 V
±0.5
±0.25
±0.5
%
Full-Scale Error Drift
Ext. REF = 2.5 V
±2
±2
±2
ppm/
°C
Bipolar Zero Error
3
Bipolar Ranges
±10
±10
±15
mV
Bipolar Zero Error Drift
Bipolar Ranges
±2
±2
±2
ppm/
°C
Unipolar Zero Error
3
Unipolar Ranges
±10
±10
±10
mV
Unipolar Zero Error Drift
Unipolar Ranges
±2
±2
±2
ppm/
°C
Recovery to Rated Accuracy
After Power-Down
5
2.2
µF to CAP
1
1
1
ms
Power Supply Sensitivity
VANA = VDIG = VD = 5 V
± 5%
±8
±8
±8
LSB
AC ACCURACY
Spurious Free Dynamic Range
6
90
96
90
dB
7
Total Harmonic Distortion
6
–90
–96
–90
dB
Signal-to-(Noise+Distortion)
6
83
85
83
dB
–60 dB Input
27
28
27
dB
Signal-to-Noise
6
83
85
83
dB
Full Power Bandwidth
8
700
700
700
kHz
–3 dB Input Bandwidth
1.5
1.5
1.5
MHz
SAMPLING DYNAMICS
Aperture Delay
40
40
40
ns
Transient Response, Full-Scale Step
2
2
2
µs
Overvoltage Recovery
9
150
150
150
ns
REFERENCE
Internal Reference Voltage
2.48
2.5
2.52
2.48
2.5
2.52
2.48
2.5
2.52
V
Internal Reference Source Current
1
1
1
µA
External Reference Voltage Range
for Specified Linearity
2.3
2.5
2.7
2.3
2.5
2.7
2.3
2.5
2.7
V
External Reference Current Drain
Ext. REF = 2.5 V
100
100
100
µA
NOTES
1LSB means Least Significant Bit. With a
±10 V input, one LSB is 305 µV.
2Typical rms noise at worst case transitions and temperatures.
3Measured with fixed resistors as shown in Figures 11, 12 and 13. Adjustable to zero. Tested at room temperature.
4Full-Scale Error is expressed as the % difference between the actual full-scale code transition voltage and the ideal full scale transition voltage, and includes the effect of offset
error. For bipolar input ranges, the Full-Scale Error is the worst case of either the –Full Scale or +Full Scale code transition voltage errors. For unipolar input ranges, Full-Scale
Error is with respect to the +Full-Scale code transition voltage.
5External 2.5 V reference connected to REF.
6f
IN = 20 kHz, 0.5 dB down unless otherwise noted.
7All specifications in dB are referred to a full scale
±10 V input.
8Full-Power Bandwidth is defined as full-scale input frequency at which Signal-to-(Noise+Distortion) degrades to 60 dB, or 10 bits of accuracy.
9Recovers to specified performance after a 2
× F
S input overvoltage.
Specifications subject to change without notice.
AD977–SPECIFICATIONS (–40 C to +85 C, F
S = 100 kHz, VDIG = VANA = 5 V, unless otherwise noted)


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