AD7400 Analog Devices, AD7400 Datasheet - Page 3

• Manufacturer Part Number: AD7400
• Description: Isolated Sigma-Delta Modulator
• Manufacturer: Analog Devices

Specifications of AD7400

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 10MSPS
• Interface: Ser
• Analog Input Type: Diff-Uni
• Ain Range: ± 0.2 V Diff,0.4 V p-p
• Adc Architecture: Sigma-Delta Modulator
• Pkg Type: SOIC

SPECIFICATIONS
V
f
Table 1.
Parameter
STATIC PERFORMANCE
ANALOG INPUT
DYNAMIC SPECIFICATIONS
LOGIC OUTPUTS
POWER REQUIREMENTS
1
2
3
4
5
MCLK
Temperature range is −40°C to +85°C.
All voltages are relative to their respective ground.
See the
See
See
DD1
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Offset Drift vs. Temperature
Offset Drift vs. V
Gain Error
Gain Error Drift vs. Temperature
Gain Error Drift vs. V
Dynamic Input Current
Input Capacitance
Signal-to-(Noise + Distortion) Ratio (SINAD)
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise (SFDR)
Effective Number of Bits (ENOB)
Isolation Transient Immunity
Output High Voltage, V
Output Low Voltage, V
V
V
I
I
Input Voltage Range
DD1
DD2
DD1
DD2
Figure 14
Figure 15
= 4.5 V to 5.25 V, V
= 10 MHz, tested with Sinc
4
5
Terminology
.
.
3
3
DD1
section.
DD1
3
OL
DD2
OH
3
= 3 V to 5.5 V, V
3
3
filter, 256 decimation rate, as defined by Verilog code, unless otherwise noted.
3
3
3
IN
3
+ = −200 mV to +200 mV, and V
Y Version
16
±15
±25
±0.9
±0.5
±50
3.5
1
120
±1
23
110
±200
±8
±0.5
10
70
65
79
71
−88
−88
11.5
25
30
V
0.4
4.5/5.25
3/5.5
12
6
4
DD2
− 0.1
1, 2
Rev. E | Page 3 of 20
Unit
Bits min
LSB max
LSB max
LSB max
mV max
μV typ
μV/°C max
μV/°C typ
μV/V typ
mV max
μV/°C typ
μV/V typ
mV min/mV max
μA max
μA typ
pF typ
dB min
dB min
dB typ
dB min
dB typ
dB typ
Bits
kV/μs min
kV/μs typ
V min
V max
V min/V max
V min/V max
mA max
mA max
mA max
IN
− = 0 V (single-ended); T
Test Conditions/Comments
Filter output truncated to 16 bits
−40°C to +85°C; ±2 LSB typical
>85°C to 105°C
Guaranteed no missing codes to 16 bits
T
−40°C to +105°C
−40°C to +105°C
For specified performance; full range ±320 mV
V
V
V
−40°C to +85°C
>85°C to 105°C
−40°C to +105°C
I
I
V
V
V
O
O
A
IN
IN
IN
DD1
DD2
DD2
= −200 μA
= +200 μA
= 25°C
+ = 400 mV, V
+ = V
+ = 35 Hz, 400 mV p-p sine
= 5.25 V
= 5.5 V
= 3.3 V
IN
− = 0 V
IN
− = 0 V
A
= T
MIN
1
to T
MAX
,
AD7400