hi7191 Intersil Corporation, hi7191 Datasheet - Page 5

• Manufacturer Part Number: hi7191
• Description: 24-bit, High Precision, Sigma Delta A/d Converter
• Manufacturer: Intersil Corporation

Electrical Specifications
NOTES:
10. These errors are on the order of the output noise shown in Table 1.
11. All inputs except OSC
Input Logic Current, I
Input Capacitance, C
DIGITAL OUTPUTS
Output Logic High Voltage, V
Output Logic Low Voltage, V
Output Three-State Leakage Current,
I
Digital Output Capacitance, C
TIMING CHARACTERISTICS
SCLK Minimum Cycle Time, t
SCLK Minimum Pulse Width, t
CS to SCLK Precharge Time, t
DRDY Minimum High Pulse Width
Data Setup to SCLK Rising Edge
(Write), t
Data Hold from SCLK Rising Edge
(Write), t
Data Read Access from Instruction Byte
Write, t
Read Bit Valid from SCLK Falling Edge,
t
Last Data Transfer to Data Ready
Inactive, t
RESET Low Pulse Width
SYNC Low Pulse Width
Oscillator Clock Frequency
Output Rise/Fall Time
Input Rise/Fall Time
POWER SUPPLY CHARACTERISTICS
IAV
IAV
IDV
Power Dissipation, Active PD
Power Dissipation, Standby PD
PSRR
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 10, R1 = 10kΩ, C
8. 1 LSB = 298nV at 24 bits for a Full Scale Range of 5V.
9. V
OZ
DV
DD
SS
DD
REF
ACC
DSU
DHLD
DRDY
= V
PARAMETER
RHI
- V
RLO.
I
IN
1
. The OSC
OL
OH
A
SCLK
OUT
SCLKPW
PRE
S
5
AV
PGIA Gain = 1, OSC
1
DD
input V
= +5V, AV
V
V
I
I
V
(Notes 2, 7)
(Note 7)
(Note 7)
(Note 7)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
SCLK = 4MHz
SB = ‘0’
SB = ‘1’
(Note 3)
OUT
OUT
IN
IN
OUT
= 0V, +5V
= 0V
IH
= -100μA (Note 7)
= 3mA (Note 7)
= 0V, +5V (Note 7)
is 3.5V minimum.
L
SS
TEST CONDITIONS
= 50pF.
= -5V, DV
IN
= 10MHz, Bipolar Input Range Selected, f
DD
HI7191
= +5V, V
RHI
= +2.5V, V
RLO
MIN
200
500
100
100
2.4
-10
0.1
50
50
50
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
= AGND = 0V, V
N
= 10Hz (Continued)
TYP
1.0
5.0
10
35
15
70
1
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CM
= AGND,
MAX
32.5
0.4
1.5
2.0
3.0
10
10
40
40
10
30
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNITS
June 1, 2006
MHz
mW
mW
mA
mA
mA
μA
μA
dB
pF
pF
ns
ns
ns
ns
μs
ns
ns
ns
ns
ns
ns
ns
ns
V
V
FN4138.8