Typical rms noise at worst case transitions and temperatures.
3
Measured with fixed resistors as shown in Figures 11, 12 and 13. Adjustable to zero. Tested at room temperature.
4
Full-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.
5
External 2.5 V reference connected to REF.
6
f
IN
= 20 kHz, 0.5 dB down unless otherwise noted.
7
All specifications in dB are referred to a full scale
±
10 V input.
8
Full-Power Bandwidth is defined as full-scale input frequency at which Signal-to-(Noise+Distortion) degrades to 60 dB, or 10 bits of accuracy.
9
Recovers to specified performance after a 2
×
F
S
input overvoltage.
Specifications subject to change without notice.
–2–
REV. D
AD977/AD977A
AD977A–SPECIFICATIONS
(–40 C to +85 C, F = 200 kHz, V
S
DIG
= V
ANA
= 5 V, unless otherwise noted)
Max
Min
16
C Grade
Typ Max
Unit
Bits
Parameter
RESOLUTION
ANALOG INPUT
Voltage Range
Impedance
Sampling Capacitance
THROUGHPUT SPEED
Complete Cycle
Throughput Rate
DC ACCURACY
Integral Linearity Error
Differential Linearity Error
No Missing Codes
Transition Noise
2
Full-Scale Error
3, 4
Full-Scale Error Drift
Full-Scale Error
Ext. REF = 2.5 V
Full-Scale Error Drift
Ext. REF = 2.5 V
Bipolar Zero Error
3
Bipolar Ranges
Bipolar Zero Error Drift
Bipolar Ranges
Unipolar Zero Error
3
Unipolar Ranges
Unipolar Zero Error Drift
Unipolar Ranges
Recovery to Rated Accuracy
After Power-Down
5
2.2
µF
to CAP
Power Supply Sensitivity
V
ANA
= V
DIG
= V
D
= 5 V
±
5%
AC ACCURACY
Spurious Free Dynamic Range
6
Total Harmonic Distortion
6
Signal-to-(Noise+Distortion)
6
–60 dB Input
Signal-to-Noise
6
Full Power Bandwidth
8
–3 dB Input Bandwidth
SAMPLING DYNAMICS
Aperture Delay
Transient Response, Full-Scale Step
Overvoltage Recovery
9
REFERENCE
Internal Reference Voltage
Internal Reference Source Current
External Reference Voltage Range
for Specified Linearity
External Reference Current Drain
Ext. REF = 2.5 V
Min
16
A Grade
Typ
Max
Min
16
B Grade
Typ
40
5
200
±
3
+3
1.0
±
7
±
0.5
±
0.5
±
2
±
10
±
2
±
10
±
2
1
±
8
90
–90
83
27
83
1
2.7
40
1
150
2.48
2.5
1
2.5
2.52
±
10 V, 0 V to 5 V, . . . (See Table II)
See Table II
40
5
200
±
2.0
+1.75
1.0
±
7
±
0.25
±
0.25
±
2
±
10
±
2
±
10
±
2
1
±
8
96
–96
85
28
85
1
2.7
40
1
150
2.48
2.5
1
2.5
2.52
2.48
83
83
90
200
40
5
pF
µs
kHz
LSB
1
LSB
Bits
LSB
%
ppm/°C
%
ppm/°C
±
15
mV
ppm/°C
±
10
mV
ppm/°C
–2
15
–1
16
±
3
±
2
15
1.0
±
7
±
0.5
±
0.5
±
2
±
2
±
2
1
±
8
ms
LSB
dB
7
dB
dB
dB
dB
MHz
MHz
ns
µs
ns
V
µA
V
mA
–90
27
1
2.7
40
1
150
2.5
1
2.5
2.52
2.3
2.7
1.2
2.3
2.7
1.2
2.3
2.7
1.2
NOTES
1
LSB means Least Significant Bit. With a
±
10 V input, one LSB is 305
µV.
2
Typical rms noise at worst case transitions and temperatures.
3
Measured with fixed resistors as shown in Figures 11, 12 and 13. Adjustable to zero. Tested at room temperature.
4
Full-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.
5
External 2.5 V reference connected to REF.
6
f
IN
= 20 kHz, 0.5 dB down unless otherwise noted.
7
All specifications in dB are referred to a full scale
±
10 V input.
8
Full-Power Bandwidth is defined as full-scale input frequency at which Signal-to-(Noise+Distortion) degrades to 60 dB, or 10 bits of accuracy.
9
Recovers to specified performance after a 2
×
F
S
input overvoltage.
Specifications subject to change without notice.
REV. D
–3–
AD977/AD977A–SPECIFICATIONS
(Both Specs)
Parameter
DIGITAL INPUTS
Logic Levels
V
IL
V
IH
I
IL
I
IH
DIGITAL OUTPUTS
Data Format
Data Coding
Pipeline Delay
V
OL
V
OH
POWER SUPPLIES
Specified Performance
V
DIG
V
ANA
I
DIG
I
ANA
Power Dissipation
PWRD LOW
PWRD HIGH
TEMPERATURE RANGE
Specified Performance
T
MIN
to T
MAX
Conditions
Min
A, B, C Grades
Typ
Max
Unit
–0.3
2.0
+0.8
V
DIG
+ 0.3
±
10
±
10
V
V
µA
µA
I
SINK
= 1.6 mA
I
SOURCE
= 500
µA
Serial 16-Bits
Binary Two’s Complement or Straight Binary
Conversion Results Only Available after Completed Conversion
Qorvo (Nasdaq: QRVO), a leading provider of innovative RF solutions that connect the world, today introduced the industry's smallest single-chip motor control and inverter solution for brushless DC (B...
Bottom: Compatible with multiple types of sockets. Supports 100~240Vac. Is the output 220Vac? The mechanical design must be very clever, only one plug can be extended at the same time.Top: The plug on...
I want to make a car instrument interface. The dial and pointer are directly imported into the bitmap. The function PlgBlt() cannot be used in wince6.0. Is there any good way to rotate the bitmap? (Th...
1. Test
I just got the ATK-NEO-6M GPS module. I can't believe that this nearly 100 yuan thing is only 3cm in size. I downloaded relevant information online before. The first quick test must be done wi...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
At present, with the diversification of portable products and the almost harsh requirements for audio and video parts, the power consumption requirements of the whole machine have been raised to a ...[Details]
It should be understood as follows: DC-DC means direct current to direct current (conversion of different DC power values). Anything that meets this definition can be called a DC-DC converter, incl...[Details]
1 Introduction
Automatic Test
System The ATS (Automatic Test System) integrates all the stimulus and measurement equipment required for testing.
The computer
efficiently comp...[Details]
1. Brief Introduction
With the continuous development and improvement of single-chip microcomputer technology, single-chip microcomputers have been widely used in all walks of life, and ...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
