Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsDev KitsPCB design board

1. General description

The ADC1415S is a single channel 14-bit Analog-to-Digital Converter (ADC) optimized for

high dynamic performance and low power consumption at sample rates up to 125 Msps.

Pipelined architecture and output error correction ensure the ADC1415S is accurate

enough to guarantee zero missing codes over the entire operating range. Supplied from a

single 3 V source, it can handle output logic levels from 1.8 V to 3.3 V in CMOS mode,

thanks to a separate digital output supply.

The ADC1415S supports the Low Voltage Differential Signalling (LVDS) Double Data

Rate (DDR) output standard. An integrated Serial Peripheral Interface (SPI) allows the

user to easily configure the ADC.

The device also includes a SPI programmable full-scale to allow flexible input voltage

range from 1 V to 2 V (peak-to-peak). With excellent dynamic performance from the

baseband to input frequencies of 170 MHz or more, the ADC1415S is ideal for use in

communications, imaging and medical applications - especially in high Intermediate

Frequency (IF) applications thanks to the integrated input buffer. The input buffer ensures

that the input impedance remains constant and low and the performance consistent over

a wide frequency range.

2. Features and benefits

ADC1415S series

Single 14-bit ADC; 65 Msps, 80 Msps, 105 Msps or 125 Msps

with input buffer; CMOS or LVDS DDR digital outputs

Rev. 4 — 17 December 2010 Product data sheet

 SNR, 72 dBFS; SFDR, 86 dBc  Input bandwidth, 600 MHz

 Sample rate up to 125 Msps  Power dissipation, 635 mW at 80 Msps,

including analog input buffer

 14-bit pipelined ADC core  Serial Peripheral Interface (SPI)

 Clock input divided by 2 for less jitter

contribution

 Duty cycle stabilizer

 Integrated input buffer  Fast OuT-of-Range (OTR) detection

 Flexible input voltage range: 1 V (p-p) to

2 V (p-p)

 Offset binary, two’s complement, gray

code

 CMOS or LVDS DDR digital outputs  Power-down mode and Sleep mode

 Pin compatible with ADC1215S series,

ADC1015S series and the

ADC1115S125

 HVQFN40 package

Summary of content (42 pages)

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ADC1415S series Single 14-bit ADC; 65 Msps, 80 Msps, 105 Msps or 125 Msps with input buffer; CMOS or LVDS DDR digital outputs Rev. 4 — 17 December 2010 Product data sheet 1. General description The ADC1415S is a single channel 14-bit Analog-to-Digital Converter (ADC) optimized for high dynamic performance and low power consumption at sample rates up to 125 Msps.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 3. Applications Wireless and wired broadband communications Portable instrumentation Imaging systems Digital predistortion loop, power amplifier linearization Spectral analysis Ultrasound equipment Software defined radio 4. Ordering information Table 1.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 5.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 6. Pinning information 31 DAV 32 n.c. 33 VDDO 34 OGND 35 OTR 36 SCLK/DFS 37 SDIO/ODS 38 CS 39 SENSE 40 VREF 31 DAV terminal 1 index area 32 n.c. 33 VDDO 34 OGND 35 OTR 36 SCLK/DFS 37 SDIO/ODS 38 CS terminal 1 index area 39 SENSE 40 VREF 6.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 2.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 3.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 9. Static characteristics Table 6. Symbol Static characteristics[1] Parameter Conditions Min Typ Max Unit 4.75 5.0 5.25 V Supplies VDDA(5V) analog supply voltage 5 V VDDA(3V) analog supply voltage 3 V VDDO output supply voltage 2.85 3.0 3.4 V CMOS mode 1.65 1.8 3.6 V LVDS DDR mode 2.85 3.0 3.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 6. Static characteristics[1] …continued Symbol Parameter Min Typ Max Unit IIL LOW-level input current Conditions −10 - +10 μA IIH HIGH-level input current −50 - +50 μA CI input capacitance - 4 - pF Digital outputs, CMOS mode: pins D13 to D0, OTR, DAV Output levels, VDDO = 3 V VOL LOW-level output voltage OGND - 0.2VDDO V VOH HIGH-level output voltage 0.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 6. Symbol Static characteristics[1] …continued Parameter Conditions Min Typ Max Unit −5 - +5 LSB −0.95 ±0.5 +0.95 LSB Accuracy INL integral non-linearity DNL differential non-linearity Eoffset offset error - ±2 - mV EG gain error - ±0.
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xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx Symbol Dynamic characteristics[1] …continued Parameter Conditions ADC1415S065 Min IMD [1] Intermodulat
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs N+1 N td(s) N+2 tclk CLKP CLKM tPD (N − 14) (N − 13) (N − 12) (N − 11) DATA tsu tPD th DAV tclk 005aaa060 Fig 4. CMOS mode timing N+1 N td(s) N+2 tclk CLKP CLKM tPD (N − 14) (N − 13) (N − 12) (N − 11) Dx_Dx + 1_P Dx Dx + 1 Dx Dx + 1 Dx Dx + 1 Dx Dx + 1 Dx Dx + 1 Dx_Dx + 1_M tsu th tsu th tPD DAVP DAVM tclk Fig 5.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 10.3 SPI timings Table 9.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 10.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 001aam659 90 001aam660 75 SFDR (dBc) SNR (dBFS) 86 73 82 71 78 69 74 67 70 65 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 0.5 1.0 1.5 2.0 2.5 VI(cm) (V) Fig 11. Spurious-free dynamic range as a function of common-mode input voltage (Vi(cm)) 3.0 3.5 VI(cm) (V) Fig 12. Signal-to-noise ratio as a function of common-mode input voltage (Vi(cm)) 11. Application information 11.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.1.2 Operating mode selection The active ADC1415S operating mode (Power-up, Power-down or Sleep) can be selected via the SPI interface (see Table 19) or using pins PWD and OE in Pin control mode, as described in Table 10. Table 10.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs package ESD parasitics switch INP Ron = 15 Ω 8 internal clock 4 pF sampling capacitor INPUT BUFFER switch INM Ron = 15 Ω 7 internal clock 4 pF sampling capacitor 005aaa107 Fig 14.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.2.2 Transformer The configuration of the transformer circuit is determined by the input frequency. The configuration shown in Figure 15 would be suitable for a baseband application. ADT1-1WT Analog input 100 nF 100 nF INP 50 Ω 100 nF 100 nF INM VCM 100 nF 100 nF 005aaa108 Fig 15.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.3 System reference and power management 11.3.1 Internal/external references The ADC1415S has a stable and accurate built-in internal reference voltage to adjust the ADC full-scale.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs VREF VREF 330 pF 330 pF REFERENCE EQUIVALENT SCHEMATIC REFERENCE EQUIVALENT SCHEMATIC SENSE SENSE 005aaa117 005aaa116 Fig 18. Internal reference, 2 V (p-p) full scale Fig 19. Internal reference, 1 V (p-p) full scale VREF V 0.1 μF VREF 330 pF REFERENCE EQUIVALENT SCHEMATIC REFERENCE EQUIVALENT SCHEMATIC SENSE VDDA SENSE 005aaa119 005aaa118 Fig 20.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.4 Clock input 11.4.1 Drive modes The ADC1415S can be driven differentially (LVPECL). It can also be driven by a single-ended Low Voltage Complementary Metal Oxide Semiconductor (LVCMOS) signal connected to pin CLKP (pin CLKM should be connected to ground via a capacitor) or CLKM (pin CLKP should be connected to ground via a capacitor).
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.4.2 Equivalent input circuit The equivalent circuit of the input clock buffer is shown in Figure 24. The common-mode voltage of the differential input stage is set via internal 5 kΩ resistors. Package ESD Parasitics CLKP Vcm(clk) SE_SEL SE_SEL 5 kΩ 5 kΩ CLKM 005aaa056 Vcm(clk) = common-mode voltage of the differential input stage. Fig 24.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.5 Digital outputs 11.5.1 Digital output buffers: CMOS mode The digital output buffers can be configured as CMOS by setting bit LVDS_CMOS to logic_0 (see Table 23). Each digital output has a dedicated output buffer. The equivalent circuit of the CMOS digital output buffer is shown in Figure 25. The buffer is powered by a separate OGND/VDDO to ensure 1.8 V to 3.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.5.2 Digital output buffers: LVDS DDR mode The digital output buffers can be configured as LVDS DDR by setting bit LVDS_CMOS to logic_1 (see Table 23). VCCO 3.5 mA typ − + DnP/Dn + 1P 100 Ω RECEIVER DnM/Dn + 1M − + OGND 005aaa058 Fig 26.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 13. LVDS DDR output register 2 …continued LVDS_INT_TER[2:0] Resistor value (Ω) 101 100 110 81 111 60 11.5.3 DAta Valid (DAV) output clock A data valid output clock signal (DAV) is provided that can be used to capture the data delivered by the ADC1415S. Detailed timing diagrams for CMOS and LVDS DDR modes are provided in Figure 4 and Figure 5 respectively. 11.5.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 11.5.7 Output codes versus input voltage Table 15. Output codes VINP − VINM Offset binary Two’s complement OTR pin < −1 00 0000 0000 0000 10 0000 0000 0000 1 −1 00 0000 0000 0000 10 0000 0000 0000 0 −0.9998779 00 0000 0000 0001 10 0000 0000 0001 0 −0.9997559 00 0000 0000 0010 10 0000 0000 0010 0 −0.9996338 00 0000 0000 0011 10 0000 0000 0011 0 −0.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 17. Number of data bytes to be transferred after the instruction bytes W1 W0 Number of bytes transmitted 0 0 1 byte 0 1 2 bytes 1 0 3 bytes 1 1 4 bytes or more Bits A12 to A0 indicate the address of the register being accessed. In the case of a multiple byte transfer, this address is the first register to be accessed. An address counter is increased to access subsequent addresses.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs CS SCLK (Data format) SDIO (CMOS LVDS DDR) Offset binary, LVDS DDR default mode at start-up 005aaa063 Fig 29. Default mode at start-up: SCLK LOW = offset binary; SDIO HIGH = LVDS DDR CS SCLK (Data format) SDIO (CMOS LVDS DDR) two's complement, CMOS default mode at start-up 005aaa064 Fig 30.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 19. Reset and operating mode control register (address 0005h) bit description Default values are highlighted.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 21. Internal reference control register (address 0008h) bit description Default values are highlighted. Bit Symbol 7 to 4 - 3 INTREF_EN 2 to 0 INTREF[2:0] Access Value Description 0000 not used R/W programmable internal reference enable 0 disable 1 active R/W programmable internal reference 000 0 dB (FS = 2 V) 001 −1 dB (FS = 1.78 V) 010 −2 dB (FS = 1.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 23. Output data standard control register (address 0011h) bit description …continued Default values are highlighted. Bit Symbol Access 1 to 0 DATA_FORMAT[1:0] R/W Value Description output data format 00 offset binary 01 two’s complement 10 gray code 11 offset binary Table 24. Output clock register (address 0012h) bit description Default values are highlighted.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 26. Test pattern register 1 (address 0014h) bit description …continued Default values are highlighted. Bit Symbol Access 2 to 0 TESTPAT_SEL[2:0] R/W Value Description digital test pattern select 000 off 001 mid scale 010 −FS 011 +FS 100 toggle ‘1111..1111’/’0000..0000’ 101 custom test pattern 110 ‘1010..1010.’ 111 ‘010..1010’ Table 27.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 30. CMOS output register (address 0020h) bit description Default values are highlighted. Bit Symbol 7 to 4 - 3 to 2 DAV_DRV[1:0] 1 to 0 DATA_DRV[1:0] Access Value Description 0000 not used R/W drive strength for DAV CMOS output buffer 00 low 01 medium 10 high 11 very high R/W drive strength for DATA CMOS output buffer 00 low 01 medium 10 high 11 very high Table 31.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Table 32. LVDS DDR output register 2 (address 0022h) bit description Default values are highlighted.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 12. Package outline HVQFN40: plastic thermal enhanced very thin quad flat package; no leads; 40 terminals; body 6 x 6 x 0.85 mm A B D SOT618-6 terminal 1 index area E A A1 c detail X e1 1/2 e e 11 20 C C A B C v w b y1 C y L 21 10 e e2 Eh 1/2 e 1 terminal 1 index area 30 40 31 X Dh 0 2.5 scale Dimensions Unit A(1) A1 b max 1.00 0.05 0.30 nom 0.85 0.02 0.21 min 0.80 0.00 0.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 13. Revision history Table 33. Revision history Document ID Release date Data sheet status Change Supersedes notice ADC1415S_SER v.4 20101217 Product data sheet - Modifications: ADC1415S_SER v.3 • • • ADC1415S_SER v.3 Data sheet status changed from Preliminary to Product. Text and drawings updated throughout entire data sheet. Section 10.4 “Typical characteristics” added to the data sheet.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 14. Legal information 14.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs Non-automotive qualified products — Unless this data sheet expressly states that this specific NXP Semiconductors product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements.
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ADC1415S series NXP Semiconductors Single 14-bit ADC; input buffer; CMOS or LVDS DDR digital outputs 16. Contents 1 2 3 4 5 6 6.1 6.2 7 8 9 10 10.1 10.2 10.3 10.4 11 11.1 11.1.1 11.1.2 11.1.3 11.1.4 11.2 11.2.1 11.2.2 11.3 11.3.1 11.3.2 11.3.3 11.3.4 11.4 11.4.1 11.4.2 11.4.3 11.4.4 11.5 11.5.1 11.5.2 11.5.3 11.5.4 11.5.5 11.5.6 11.5.7 11.6 11.6.1 11.6.2 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Applications . . . .