Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering, 10s). . . . . . . . . . . . . 300°C
(SOIC - Lead Tips Only)
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40° C to 85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
PARAMETER
SYSTEM PERFORMANCE
Integral Non-Linearity, INL
Differential Non-Linearity
Offset Error, V
OS
Offset Error Drift
Full Scale Error, FSE
Noise, e
N
AV
DD
= +5V, AV
SS
= -5V, DV
DD
= +5V, V
RHI
= +2.5V, V
RLO
= AGND = 0V, V
CM
= AGND,
PGIA Gain = 1, OSC
IN
= 10MHz, Bipolar Input Range Selected, f
N
= 10Hz
TEST CONDITIONS
End Point Line Method (Notes 3, 5, 6)
(Note 2)
See Table 1
V
INHI
= V
INLO
(Notes 3, 8)
V
INHI
- V
INLO
= +2.5V (Notes 3, 5, 8, 10)
See Table 1
V
CM
= 0V, V
INHI
= V
INLO
from -2V to +2V
Filter Notch = 10Hz, 25Hz, 50Hz (Note 2)
Filter Notch = 10Hz, 30Hz, 60Hz (Note 2)
MIN
-
-
-
-
-
-
120
120
-
Unipolar Mode (Note 9)
Bipolar Mode (Note 9)
(Note 2)
V
IN
= AV
DD
(Note 2)
0
- V
REF
AV
SS
-
-
2.5
-
-
-
-
0.2(V
REF
/Gain)
(Note 11)
V
IN
= 0V, +5V
2.0
-
-
TYP
0.0007
-
1
-
-
70
-
-
2
-
-
-
-
5.0
-
200
-
-
-
-
-
-
1.0
MAX
0.0015
-
-
-
-
-
-
-
4
V
REF
V
REF
AV
DD
1.0
-
5
-
1.2(V
REF
/Gain)
1.2(V
REF
/Gain)
1.2(V
REF
/Gain)
2.4(V
REF
/Gain)
-
0.8
10
UNITS
%FS
LSB
-
V/°C
-
-
dB
dB
dB
Conversions
V
V
V
nA
pF
V
nA
-
-
-
-
V
V
A
No Missing codes to 22-Bits
Common Mode Rejection Ratio, CMRR
Normal Mode 50Hz Rejection
Normal Mode 60Hz Rejection
Step Response Settling Time
ANALOG INPUTS
Input Voltage Range
Input Voltage Range
Common Mode Input Range
Input Leakage Current, I
IN
Input Capacitance, C
IN
Reference Voltage Range, V
REF
(V
REF
= V
RHI
- V
RLO
)
Transducer Burn-Out Current, I
BO
CALIBRATION LIMITS
Positive Full Scale Calibration Limit
Negative Full Scale Calibration Limit
Offset Calibration Limit
Input Span
DIGITAL INPUTS
Input Logic High Voltage, V
IH
Input Logic Low Voltage, V
IL
Input Logic Current, I
I
FN3612 Rev 10.00
June 27, 2006
Page 4 of 25
HI7190
Electrical Specifications
PARAMETER
Input Capacitance, C
IN
DIGITAL OUTPUTS
Output Logic High Voltage, V
OH
Output Logic Low Voltage, V
OL
Output Three-State Leakage Current,
I
OZ
Digital Output Capacitance, C
OUT
TIMING CHARACTERISTICS
SCLK Minimum Cycle Time, t
SCLK
SCLK Minimum Pulse Width, t
SCLKPW
CS to SCLK Precharge Time, t
PRE
DRDY Minimum High Pulse Width
Data Setup to SCLK Rising Edge (Write),
t
DSU
Data Hold from SCLK Rising Edge
(Write), t
DHLD
Data Read Access from Instruction Byte
Write, t
ACC
Read Bit Valid from SCLK Falling Edge,
t
DV
Last Data Transfer to Data Ready
Inactive, t
DRDY
RESET Low Pulse Width
SYNC Low Pulse Width
Oscillator Clock Frequency
Output Rise/Fall Time
Input Rise/Fall Time
POWER SUPPLY CHARACTERISTICS
IAV
DD
IAV
SS
IDV
DD
Power Dissipation, Active PD
A
Power Dissipation, Standby PD
S
PSRR
NOTES:
2. Parameter guaranteed by design or characterization, not production tested.
3. Applies to both bipolar and unipolar input ranges.
4. These errors can be removed by re-calibrating at the desired operating temperature.
5. Applies after system calibration.
6. Fully differential input signal source is used.
7. See Load Test Circuit, Figure 4, R1 = 10k, C
L
= 50pF.
8. 1 LSB = 298nV at 24 bits for a Full Scale Range of 5V.
9. V
REF
= V
RHI
- V
RLO.
10. These errors are on the order of the output noise shown in Table 1.
1 Introduction
In the mid-1960s, American scientist Maas conducted extensive experimental research on the charging process of open-cell batteries and proposed an acceptable charging curve for ...[详细]
C++ 属于面向对象的编程语言,OOP的思想不必多说,特别对于复杂的软件工程来说,利用OOP绝对是事半功倍,相对于传统的C来说; 当然用C来写单片机程序无可厚非,已经延续了一个传统,从大学时学的开始到工作岗位,好多人都是一直用C来做,但是既然Keil支持C++编译, 可以用C++来编写你的代码,可以利用高级语言来结构化,清晰化你的程序,为嘛不用呢!哈哈,个人看法!下面进入正题: C+...[详细]