TI LM98714 Lm98714 three channel, 16-bit, 45 msps digital copier analog front end with integrated ccd/cis sensor timing generator and lvds output Datasheet

LM98714
www.ti.com
SNAS254 – OCTOBER 2006
LM98714 Three Channel, 16-Bit, 45 MSPS Digital Copier Analog Front End with Integrated
CCD/CIS Sensor Timing Generator and LVDS Output
Check for Samples: LM98714
FEATURES
DESCRIPTION
•
•
The LM98714 is a fully integrated, high performance
16-Bit, 45 MSPS signal processing solution for digital
color copiers, scanners, and other image processing
applications. High-speed signal throughput is
achieved with an innovative architecture utilizing
Correlated Double Sampling (CDS), typically
employed with CCD arrays, or Sample and Hold
(S/H) inputs (for Contact Image Sensors and CMOS
image sensors). The signal paths utilize 8 bit
Programmable Gain Amplifiers (PGA), a +/-9-Bit
offset correction DAC and independently controlled
Digital Black Level correction loops for each input.
The PGA and offset DAC are programmed
independently allowing unique values of gain and
offset for each of the three inputs. The signals are
then routed to a 45MHz high performance analog-todigital converter (ADC). The fully differential
processing channel shows exceptional noise
immunity, having a very low noise floor of -74dB. The
16-bit ADC has excellent dynamic performance
making the LM98714 transparent in the image
reproduction chain.
1
2
•
•
•
•
•
LVDS/CMOS Outputs
LVDS/CMOS Pixel Rate Input Clock or ADC
Input Clock
CDS or S/H Processing for CCD or CIS
Sensors
Independent Gain/Offset Correction for Each
Channel
Digital Black Level Correction Loop for Each
Channel
Programmable Input Clamp Voltage
Flexible CCD/CIS Sensor Timing Generator
APPLICATIONS
•
•
•
•
Multi-Function Peripherals
Facsimile Equipment
Flatbed or Handheld Color Scanners
High-Speed Document Scanner
KEY SPECIFICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Maximum Input Level 1.2 or 2.4 Volt Modes
– (Both with + or - Polarity Option)
ADC Resolution 16-Bit
ADC Sampling Rate 45 MSPS
INL +/- 23 LSB (typ)
Channel Sampling Rate 15/22.5/30 MSPS
PGA Gain Steps 256 Steps
PGA Gain Range 0.7 to 7.84x
Analog DAC Resolution +/-9 Bits
Analog DAC Range +/-300mV or +/-600mV
Digital DAC Resolution +/-6 Bits
Digital DAC Range -1024 LSB to + 1008 LSB
SNR -74dB (@0dB PGA Gain)
Power Dissipation 505mW (LVDS) 610mW
(CMOS)
Operating Temp 0 to 70°C
Supply Voltage 3.3V Nominal (3.0V to 3.6V
Range)
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated
LM98714
SNAS254 – OCTOBER 2006
www.ti.com
System Block Diagram
CCD/CIS Sensor
Analog Front End
SPI
LM98714
Image Processor/ASIC
Data Output
Sensor Drivers
2
CCD Timing
Generator
Submit Documentation Feedback
Motor
Controllers
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
OSB
OSG
OSR
VCLP Reference
Configuration
Input Bias/
Clamping
COLOR3DAC[9:0]
Input Bias/
Clamping
COLOR2DAC[9:0]
Input Bias/
Clamping
COLOR5DAC[9:0]
COLOR4DAC[9:0]
COLOR3DAC[9:0]
COLOR2DAC[9:0]
COLOR1DAC[9:0]
VCLP
Reference
DAC
CDS
or
Sample/Hold
Amplifier
Black
Level
Offset
DAC
CDS
or
Sample/Hold
Amplifier
Black
Level
Offset
DAC
CDS
or
Sample/Hold
Amplifier
5:1
MUX
AGND
Black
Level
Offset
DAC
VA
4
Reference
Generator
COLOR3PGA[7:0]
COLOR2PGA[7:0]
COLOR5PGA[7:0]
COLOR4PGA[7:0]
COLOR3PGA[7:0]
COLOR2PGA[7:0]
COLOR1PGA[7:0]
PGA
PGA
PGA
5:1
MUX
VD
Red Ch
Black Level
Correction
16
Green Ch
Black Level
Correction
Config
Registers
CCD Timing Generator
Digital
Offset
16 Bit ADC
DGND DVB
3:1
MUX
VR
CLKOUT/
CLK10
Data Out
Config
(CMOS/LVDS)
Blue Ch
Black Level
Correction
Serial
Interface
VC
INCLK-
INCLK+
DOUT0/
TXOUT0-
DOUT1/
TXOUT0+
DOUT2/
TXOUT1-
DOUT3/
TXOUT1+
DOUT4/
TXOUT2-
DOUT5/
TXOUT2+
DOUT6/
TXCLK-
DOUT7/
TXCLK+
SCLK
SDIO
SEN
RESET
LM98714
www.ti.com
SNAS254 – OCTOBER 2006
LM98714 Overall Chip Block Diagram
CLK9
CLK8
CLK7
CLK6
CLK5
CLK4
CLK3
CLK2
CLK1
SH
SH_R
VREFT
VREFB
VCLP
Figure 1. Chip Block Diagram
Submit Documentation Feedback
3
LM98714
SNAS254 – OCTOBER 2006
www.ti.com
LM98714 Pin Out Diagram
CLK3
1
48
CLK4
CLK2
2
47
VC
CLK1
3
46
DGND
SH
4
45
CLK5
RESET
5
44
CLK6
SH_R
6
43
CLK7
SDIO
7
42
CLK8
SCLK
8
41
CLK9
SEN
9
40
CLKOUT/CLK10
AGND
10
39
VD
VA
11
38
DGND
VREFB
12
37
DOUT0/TXOUT0-
VREFT
13
36
DOUT1/TXOUT0+
VA
14
35
DOUT2/TXOUT1-
AGND
15
34
DOUT3/TXOUT1+
VCLP
16
33
DOUT4/TXOUT2-
VA
17
32
DOUT5/TXOUT2+
AGND
18
31
DOUT6/TXCLK-
OSR
19
30
DOUT7/TXCLK+
AGND
20
29
INCLK-
OSG
21
28
INCLK+
AGND
22
27
DVB
OSB
23
26
VR
AGND
24
25
DGND
48 Pin TSSOP
(not to scale)
Figure 2. LM98714 Pin Out Diagram
4
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
LM98714
www.ti.com
SNAS254 – OCTOBER 2006
Typical Application Diagram
Serial Interface and Device Control Bus
CCD Timing Generator Output Bus
CCD Clock Drivers
CLK3
CLK4
CLK2
VC
CLK1
DGND
SH
CLK5
RESET
CLK6
SH_R
CLK7
SDIO
CLK8
SCLK
VA
CLK10/CLKOUT
AGND
0.1 PF
0.1 PF
0.1 PF
AGND
CCD Sensor
and
Output Signal
Buffers
VD
VD
VA
0.1 PF
0.1 PF
0.1 PF
DGND
CLK9
SEN
0.1 PF
VC
0.1 PF
DGND
DGND
VREFB
D0/TXOUT0-
VREFT
D1/TXOUT0+
VA
D2/TXOUT1-
AGND
D3/TXOUT1+
VCLP
D4/TXOUT2-
VA
D5/TXOUT2+
AGND
D6/TXCLK-
OSR
D7/TXCLK+
AGND
INCLK-
OSG
INCLK+
AGND
LVDS Deserializer
(DS90CR218A or
equiv.)
*
100:
DVB
OSB
VR
VR
AGND
0.1 PF
DGND
DGND
DGND
AGND
3.3V
3.3V
VA
+
4.7 PF
ASIC and Clock Gen
VR VD VC
+
AGND
4.7 PF
* 100: used for LVDS INCLK only.
If using CMOS INCLK, 100: is removed and INCLK- connected to DGND.
DGND
Figure 3. Typical Application Diagram
Pin Descriptions
Pin
Name
I/O (1)
Typ
Res
Description
1
CLK3
O
D
PU
Configurable sensor control output.
2
CLK2
O
D
PD
Configurable sensor control output.
3
CLK1
O
D
PU
Configurable sensor control output.
4
SH
O
D
PD
Sensor - Shift or transfer control signal for CCD and CIS sensors.
5
RESET
I
D
PU
Active-low master reset. NC when function not being used.
6
SH_R
I
D
PD
External request for an SH pulse.
7
SDIO
I/O
D
8
SCLK
I
D
PD
Serial Interface shift register clock.
9
SEN
I
D
PU
Active-low chip enable for the Serial Interface.
10
AGND
P
Analog ground return.
11
VA
P
Analog power supply. Bypass voltage source with 4.7μF and pin with 0.1μF to AGND.
12
VREFB
O
A
Bottom of ADC reference. Bypass with a 0.1μF capacitor to ground.
13
VREFT
O
A
Top of ADC reference. Bypass with a 0.1μF capacitor to ground.
14
VA
P
Analog power supply. Bypass voltage source with 4.7μF and pin with 0.1μF to AGND.
15
AGND
P
Analog ground return.
16
VCLP
A
Input Clamp Voltage. Normally bypassed with a 0.1μF, and a 4.7μF capacitor to AGND. An
external reference voltage may be applied to this pin.
(1)
IO
Serial Interface Data Input
(I=Input), (O=Output), (IO=Bi-directional), (P=Power), (D=Digital), (A=Analog), (PU=Pull Up with an internal resistor), (PD=Pull Down
with an internal resistor.).
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
5
LM98714
SNAS254 – OCTOBER 2006
www.ti.com
Pin Descriptions (continued)
Pin
Name
17
VA
18
AGND
19
OSR
20
AGND
21
OSG
22
AGND
23
OSB
24
25
I/O
(1)
Typ
Res
Description
P
Analog power supply. Bypass voltage source with 4.7μF and pin with 0.1μF to AGND.
P
Analog ground return.
A
Analog input signal. Typically sensor Red output AC-coupled thru a capacitor.
P
Analog ground return.
A
Analog input signal. Typically sensor Green output AC-coupled thru a capacitor.
P
Analog ground return.
A
Analog input signal. Typically sensor Blue output AC-coupled thru a capacitor.
AGND
P
Analog ground return.
DGND
P
Digital ground return.
26
VR
P
Power supply input for internal voltage reference generator. Bypass this supply pin with a
0.1μF capacitor.
27
DVB
O
P
Digital Core Voltage bypass. Not an input. Bypass with 0.1μF capacitor to DGND.
28
INCLK+
I
D
Clock Input. Non-Inverting input for LVDS clocks or CMOS clock input. CMOS clock is
selected when pin 29 is held at DGND, otherwise clock is configured for LVDS operation.
29
INCLK-
I
D
Clock Input. Inverting input for LVDS clocks, connect to DGND for CMOS clock.
30
DOUT7/
O
D
Bit 7 of the digital video output bus in CMOS Mode, LVDS Frame Clock+ in LVDS Mode.
O
D
Bit 6 of the digital video output bus in CMOS Mode, LVDS Frame Clock- in LVDS Mode.
O
D
Bit 5 of the digital video output bus in CMOS Mode, LVDS Data Out2+ in LVDS Mode.
O
D
Bit 4 of the digital video output bus in CMOS Mode, LVDS Data Out2- in LVDS Mode.
O
D
Bit 3 of the digital video output bus in CMOS Mode, LVDS Data Out1+ in LVDS Mode.
O
D
Bit 2 of the digital video output bus in CMOS Mode, LVDS Data Out1- in LVDS Mode.
O
D
Bit 1 of the digital video output bus in CMOS Mode, LVDS Data Out0+ in LVDS Mode.
O
D
Bit 0 of the digital video output bus in CMOS Mode, LVDS Data Out0- in LVDS Mode.
I
I
I
TXCLK+
31
DOUT6/
TXCLK-
32
DOUT5/
TXOUT2+
33
DOUT4/
TXOUT2-
34
DOUT3/
TXOUT1+
35
DOUT2/
TXOUT1-
36
DOUT1/
TXOUT0+
37
DOUT0/
TXOUT0-
38
DGND
P
Digital ground return.
39
VD
P
Power supply for the digital circuits. Bypass this supply pin with 0.1μF capacitor. A single
4.7μF capacitor should be used between the supply and the VD, VR and VC pins.
40
CLKOUT/
CLK10
O
D
PD
Output clock for registering output data when using CMOS outputs, or configurable sensor
control output.
41
CLK9
O
D
PD
Configurable sensor control output.
42
CLK8
O
D
PD
Configurable sensor control output.
43
CLK7
O
D
PD
Configurable sensor control output.
44
CLK6
O
D
PU
Configurable sensor control output.
45
CLK5
O
D
PD
Configurable sensor control output.
46
DGND
P
47
VC
P
48
CLK4
O
D
Digital ground return.
Power supply for the sensor control outputs. Bypass this supply pin with 0.1μF capacitor.
PD
Configurable sensor control output.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
6
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
LM98714
www.ti.com
SNAS254 – OCTOBER 2006
Absolute Maximum Ratings
(1) (2) (3)
Supply Voltage (VA,VR,VD,VC)
4.2V
Voltage on Any Input Pin
(Not to exceed 4.2V)
−0.3V to
(VA + 0.3V)
Voltage on Any Output Pin
(except DVB and not to exceed 4.2V)
−0.3V to
(VA + 0.3V)
DVB Output Pin Voltage
2.0V
Input Current at any pin other than Supply Pins
Package Input Current (except Supply Pins)
(4)
±25 mA
(4)
±50 mA
Maximum Junction Temperature (TA)
150°C
Thermal Resistance (θJA)
66°C/W
Package Dissipation at TA = 25°C
ESD Rating
(6)
(5)
1.89W
Human Body Model
2500V
Machine Model
250V
−65°C to +150°C
Storage Temperature
Soldering process must comply with TI’s Reflow Temperature Profile specifications. Refer to www.ti.com/packaging.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the
Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions. Operation of the device beyond the Operating Ratings is not
recommended.
All voltages are measured with respect to AGND = DGND = 0V, unless otherwise specified.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
When the input voltage (VIN) at any pin exceeds the power supplies (VIN < GND or VIN > VA or VD), the current at that pin should be
limited to 25 mA. The 50 mA maximum package input current rating limits the number of pins that can simultaneously safely exceed the
power supplies with an input current of 25 mA to two.
The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA and the ambient temperature,
TA. The maximum allowable power dissipation at any temperature is PD = (TJMAX – TA)/θJA. The values for maximum power dissipation
listed above will be reached only when the device is operated in a severe fault condition (e.g. when input or output pins are driven
beyond the power supply voltages, or the power supply polarity is reversed). Such conditions should always be avoided.
Human body model is 100 pF capacitor discharged through a 1.5 kΩ resistor. Machine model is 220 pF discharged through 0Ω.
Reflow temperature profiles are different for lead-free and non-lead-free packages.
Operating Ratings
(1) (2)
0°C ≤ TA ≤ +70°C
Operating Temperature Range
All Supply Voltage
(1)
(2)
(7)
+3.0V to +3.6V
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the
Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions. Operation of the device beyond the Operating Ratings is not
recommended.
All voltages are measured with respect to AGND = DGND = 0V, unless otherwise specified.
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
7
LM98714
SNAS254 – OCTOBER 2006
www.ti.com
Electrical Characteristics
The following specifications apply for VA = VD = VR = VC = 3.3V, CL = 10pF, and fINCLK = 15MHz unless otherwise specified.
Boldface limits apply for TA = TMIN to TMAX; all other limits TA = 25°C. (1)
Symbol
Parameter
Conditions
Min
Typ
(2)
Max
Units
CMOS Digital Input DC Specifications (RESETb, SH_R, SCLK, SENb)
VIH
Logical “1” Input Voltage
VIL
Logical “0” Input Voltage
IIH
Logical “1” Input Current
2.0
V
0.8
RESET
IIL
V
VIH = VD
Logical “0” Input Current
235
nA
SH_R, SCLK
70
μA
SEN
130
nA
μA
VIL = DGND
RESET
70
SH_R, SCLK
235
nA
SEN
70
μA
CMOS Digital Output DC Specifications (SH, CLK1 to CLK10, CMOS Data Outputs)
VOH
Logical “1” Output Voltage
IOUT = -0.5mA
VOL
Logical “0” Output Voltage
IOUT = 1.6mA
2.95
V
IOS
Output Short Circuit Current
VOUT = DGND
16
VOUT= VD
-20
IOZ
CMOS Output TRI-STATE Current
VOUT = DGND
20
VOUT = VD
-25
0.25
V
mA
nA
CMOS Digital Input/Output DC Specifications (SDIO)
IIH
Logical “1” Input Current
VIH = VD
90
nA
IIL
Logical “0” Input Current
VIL = DGND
90
nA
LVDS/CMOS Clock Receiver DC Specifications (INCLK+ and INCLK- Pins)
VIHL
Differential LVDS Clock
High Threshold Voltage
RL = 100W
VCM (LVDS Input Common Mode
Voltage)= 1.25V
VILL
Differential LVDS Clock
Low Threshold Voltage
VIHC
CMOS Clock
High Threshold Voltage
VILC
CMOS Clock
Low Threshold Voltage
0.8
V
IIHL
CMOS Clock
Input High Current
280
μA
IILC
CMOS Clock
Input Low Current
-150
μA
INCLK- = DGND
100
mV
-100
mV
2.0
V
LVDS Output DC Specifications
(1)
VOD
Differential Output Voltage
VOS
LVDS Output Offset Voltage
RL = 100Ω
180
328
450
mV
1.17
1.23
1.3
V
The analog inputs are protected as shown below. Input voltage magnitudes beyond the supply rails will not damage the device, provided
the current is limited per Absolute Maximum Ratings, Note 4. However, input errors will be generated If the input goes above VA and
below AGND.
VA
I/O
To Internal Circuitry
AGND
(2)
8
Typical figures are at TA = 25°C, and represent most likely parametric norms at the time of product characterization. The typical
specifications are not ensured.
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
LM98714
www.ti.com
SNAS254 – OCTOBER 2006
Electrical Characteristics (continued)
The following specifications apply for VA = VD = VR = VC = 3.3V, CL = 10pF, and fINCLK = 15MHz unless otherwise specified.
Boldface limits apply for TA = TMIN to TMAX; all other limits TA = 25°C.(1)
Symbol
Parameter
Conditions
IOS
Output Short Circuit Current
VOUT = 0V, RL = 100Ω
Min
Typ
(2)
Max
Units
7.9
mA
Power Supply Specifications
IA
IR
VA Analog Supply Current
VR Digital Supply Current
VA Normal State
VA Low Power State
(Powerdown)
60
97
125
mA
12
23
32
mA
VR Normal State
(LVDS Outputs)
30
64
75
mA
CMOS Output Data Format
15
47
55
mA
LVDS Output Data Format with
Data Outputs Disabled
ID
VD Digital Output Driver Supply
Current
IC
VC CCD Timing Generator Output
Driver Supply Current
PWR
Average Power Dissipation
47
LVDS Output Data Format
mA
0.05
mA
CMOS Output Data Format
(ATE Loading of CMOS
Outputs > 50pF)
12
40
mA
Typical sensor outputs:
SH, CLK1=Φ1A, CLK2=Φ2A,
CLK3=ΦB, CLK4=ΦC,
CLK5=RS, CLK6=CP
(ATE Loading of CMOS
Outputs > 50pF)
0.5
12
mA
LVDS Output Data Format
350
505
650
mW
CMOS Output Data Format
(ATE Loading of CMOS
Outputs > 50pF)
380
610
700
mW
Input Sampling Circuit Specifications
VIN
IIN_SH
Input Voltage Level
Sample and Hold Mode
Input Leakage Current
CDS Gain=1x, PGA Gain=1x
2.3
CDS Gain=2x, PGA Gain= 1x
1.22
Vp-p
Source Followers Off
50
70
CDS Gain = 1x
(-70)
(-40)
μA
OSX = VA (OSX = AGND)
Source Followers Off
75
105
CDS Gain = 2x
(-105)
(-75)
μA
OSX = VA (OSX = AGND)
Source Followers On
-200
CDS Gain = 2x
-10
200
nA
-16
OSX = VA (OSX = AGND)
CSH
Sample/Hold Mode
Equivalent Input Capacitance
CDS Gain = 1x
IIN_CDS
CDS Mode
Input Leakage Current
Source Followers Off
OSX = VA (OSX = AGND)
RCLPIN
CLPIN Switch Resistance
2.5
CDS Gain = 2x
pF
4
-300
pF
7
(-25)
300
nA
16
50
Ω
VCLP Reference Circuit Specifications
VVCLP
VCLP DAC Resolution
4
Bits
VCLP DAC Step Size
0.16
V
VCLP DAC Voltage Min Output
VCLP Config. Register =
0001 0000b
0.14
0.26
0.43
V
VCLP DAC Voltage Max Output
VCLP Config. Register =
0001 1111b
2.38
2.68
2.93
V
Resistor Ladder Enabled
VCLP Config. Register =
0010 xxxxb
1.54
VA / 2
1.73
V
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
9
LM98714
SNAS254 – OCTOBER 2006
www.ti.com
Electrical Characteristics (continued)
The following specifications apply for VA = VD = VR = VC = 3.3V, CL = 10pF, and fINCLK = 15MHz unless otherwise specified.
Boldface limits apply for TA = TMIN to TMAX; all other limits TA = 25°C.(1)
Symbol
Parameter
Conditions
Min
ISC
VCLP DAC Short Circuit Output
Current
VCLP Config. Register =
0001 xxxxb
Typ
(2)
Max
Units
30
mA
10
Bits
Black Level Offset DAC Specifications
Resolution
Monotonicity
Offset Adjustment Range
Referred to AFE Input
Specified by characterization
CDS Gain = 1x
Minimum DAC Code = 0x000
-614
Maximum DAC Code = 0x3FF
614
mV
CDS Gain = 2x
Offset Adjustment Range
Referred to AFE Output
DAC LSB Step Size
Minimum DAC Code = 0x000
-307
Maximum DAC Code = 0x3FF
307
mV
Minimum DAC Code = 0x000
-16000
-18200
Maximum DAC Code = 0x3FF
16000
18200
LSB
CDS Gain = 1x
1.2
mV
Referred to AFE Output
(32)
(LSB)
DNL
Differential Non-Linearity
-0.95
3.25
LSB
INL
Integral Non-Linearity
-3.1
2.65
LSB
PGA Specifications
Gain Resolution
8
Monotonicity
Maximum Gain
Minimum Gain
CDS Gain = 1x
7.18
7.9
8.77
CDS Gain = 1x
17.1
17.9
18.9
dB
CDS Gain = 1x
0.56
0.7
0.82
V/V
-5
-3
-1.72
dB
CDS Gain = 1x
PGA Function
Bits
Specified by characterization
V/V
Gain (V/V) = (196/(280-PGA Code))
Gain (dB) = 20LOG10(196/(280-PGA Code))
Channel Matching
Minimum PGA Gain
3
Maximum PGA Gain
12.7
%
ADC Specifications
VREFT
Top of Reference
2.07
V
VREFB
Bottom of Reference
0.89
V
VREFT VREFB
Differential Reference Voltage
1.07
1.18
Overrange Output Code
65535
Underrange Output Code
0
1.29
V
Digital Offset “DAC” Specifications
7
Bits
Digital Offset DAC LSB Step Size
Resolution
Referred to AFE Output
16
LSB
Offset Adjustment Range
Referred to AFE Output
Min DAC Code =7b0000000
-1024
Mid DAC Code =7b1000000
0
Max DAC Code = 7b1111111
1008
LSB
Full Channel Performance Specifications
10
DNL
Differential Non-Linearity
-0.99
0.8/-0.6
2.55
LSB
INL
Integral Non-Linearity
-73
+/-23
78
LSB
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
LM98714
www.ti.com
SNAS254 – OCTOBER 2006
Electrical Characteristics (continued)
The following specifications apply for VA = VD = VR = VC = 3.3V, CL = 10pF, and fINCLK = 15MHz unless otherwise specified.
Boldface limits apply for TA = TMIN to TMAX; all other limits TA = 25°C.(1)
Min
Typ
(2)
Symbol
Parameter
Conditions
SNR
Total Output Noise
Minimum PGA Gain
-79
dB
7.2
LSB RMS
PGA Gain = 1x
-74
13
Maximum PGA Gain
Channel to Channel Crosstalk
Max
Units
dB
30
LSB RMS
-56
dB
104
LSB RMS
Mode 3
47
Mode 2
16
LSB
Submit Documentation Feedback
Copyright © 2006, Texas Instruments Incorporated
Product Folder Links: LM98714
11
PACKAGE OPTION ADDENDUM
www.ti.com
1-Nov-2013
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
LM98714BCMT/NOPB
ACTIVE
TSSOP
DGG
48
38
Green (RoHS
& no Sb/Br)
CU SN
Level-2-260C-1 YEAR
0 to 70
LM98714
BCMT
LM98714BCMTX/NOPB
ACTIVE
TSSOP
DGG
48
1000
Green (RoHS
& no Sb/Br)
CU SN
Level-2-260C-1 YEAR
0 to 70
LM98714
BCMT
LM98714CCMT/NOPB
ACTIVE
TSSOP
DGG
48
38
Green (RoHS
& no Sb/Br)
CU SN
Level-2-260C-1 YEAR
0 to 70
LM98714
CCMT
LM98714CCMTX
NRND
TSSOP
DGG
48
1000
TBD
Call TI
Call TI
0 to 70
LM98714
CCMT
LM98714CCMTX/NOPB
ACTIVE
TSSOP
DGG
48
1000
Green (RoHS
& no Sb/Br)
CU SN
Level-2-260C-1 YEAR
0 to 70
LM98714
CCMT
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
Addendum-Page 1
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
1-Nov-2013
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
26-Mar-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
LM98714BCMTX/NOPB
TSSOP
DGG
48
1000
330.0
24.4
8.6
13.2
1.6
12.0
24.0
Q1
LM98714CCMTX
TSSOP
DGG
48
1000
330.0
24.4
8.6
13.2
1.6
12.0
24.0
Q1
LM98714CCMTX/NOPB
TSSOP
DGG
48
1000
330.0
24.4
8.6
13.2
1.6
12.0
24.0
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
26-Mar-2013
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
LM98714BCMTX/NOPB
TSSOP
DGG
48
1000
367.0
367.0
45.0
LM98714CCMTX
TSSOP
DGG
48
1000
367.0
367.0
45.0
LM98714CCMTX/NOPB
TSSOP
DGG
48
1000
367.0
367.0
45.0
Pack Materials-Page 2
MECHANICAL DATA
MTSS003D – JANUARY 1995 – REVISED JANUARY 1998
DGG (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
48 PINS SHOWN
0,27
0,17
0,50
48
0,08 M
25
6,20
6,00
8,30
7,90
0,15 NOM
Gage Plane
1
0,25
24
0°– 8°
A
0,75
0,50
Seating Plane
0,15
0,05
1,20 MAX
PINS **
0,10
48
56
64
A MAX
12,60
14,10
17,10
A MIN
12,40
13,90
16,90
DIM
4040078 / F 12/97
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold protrusion not to exceed 0,15.
Falls within JEDEC MO-153
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other
changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest
issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and
complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale
supplied at the time of order acknowledgment.
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily
performed.
TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information
published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or
endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the
third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration
and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered
documentation. Information of third parties may be subject to additional restrictions.
Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.
TI is not responsible or liable for any such statements.
Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements
concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support
that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use
of any TI components in safety-critical applications.
In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and
requirements. Nonetheless, such components are subject to these terms.
No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
have executed a special agreement specifically governing such use.
Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and
regulatory requirements in connection with such use.
TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use of
non-designated products, TI will not be responsible for any failure to meet ISO/TS16949.
Products
Applications
Audio
www.ti.com/audio
Automotive and Transportation
www.ti.com/automotive
Amplifiers
amplifier.ti.com
Communications and Telecom
www.ti.com/communications
Data Converters
dataconverter.ti.com
Computers and Peripherals
www.ti.com/computers
DLP® Products
www.dlp.com
Consumer Electronics
www.ti.com/consumer-apps
DSP
dsp.ti.com
Energy and Lighting
www.ti.com/energy
Clocks and Timers
www.ti.com/clocks
Industrial
www.ti.com/industrial
Interface
interface.ti.com
Medical
www.ti.com/medical
Logic
logic.ti.com
Security
www.ti.com/security
Power Mgmt
power.ti.com
Space, Avionics and Defense
www.ti.com/space-avionics-defense
Microcontrollers
microcontroller.ti.com
Video and Imaging
www.ti.com/video
RFID
www.ti-rfid.com
OMAP Applications Processors
www.ti.com/omap
TI E2E Community
e2e.ti.com
Wireless Connectivity
www.ti.com/wirelessconnectivity
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2013, Texas Instruments Incorporated
Similar pages