LTC2209IUP - 16-Bit 160Msps ADC | Analog Devices | Industrial
MPN: LTC2209IUP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $117.92 | $117.92 |
| 10 | $109.5 | $1,095.00 |
| 100 | $95.2 | $9,520.00 |
| 500 | $86.4 | $43,200.00 |
| 1,000 | $78.1 | $78,100.00 |
LTC2209IUP Overview
An analog-to-digital converter (ADC) is a semiconductor device that converts continuous analog signals into discrete digital codes for processing by digital systems. The LTC2209IUP belongs to the pipelined ADC family, which sits within the broader data converter category, itself part of the signal chain / mixed-signal IC hierarchy used in modern electronic systems. Pipelined ADCs are favored for high-speed, high-resolution applications such as communications infrastructure, radar, medical imaging, and test instrumentation.
Key features of the LTC2209IUP include 16-bit resolution, 160Msps sample rate, a PGA front end with adjustable input range, LVDS/CMOS-compatible digital outputs, low jitter, and high spurious-free dynamic range (SFDR). The integrated PGA allows the user to trade off input range against SNR, providing flexibility for both small-signal and large-signal acquisition. The 64-lead QFN (9x9) package provides excellent thermal performance and a small PCB footprint suitable for space-constrained designs.
The architecture uses a multi-stage pipelined topology with internal reference and a proprietary calibration scheme that maintains linearity over temperature. The 700 MHz input bandwidth makes the part suitable for undersampling IF signals in communications and radar systems. The industrial temperature grade supports operation in harsh environments without additional thermal management.
Typical applications include cellular basestation receivers, cable modem head-ends, radar and lidar signal processing, medical imaging front-ends, spectroscopy, and high-speed data acquisition systems. The combination of high sample rate, wide input bandwidth, and flexible input range makes the LTC2209IUP a strong fit for communications and defense applications.
When designing with this ADC, ensure the analog input is driven by a low-jitter, low-distortion amplifier such as the AD8352 or ADL5562, and that the clock source meets the jitter requirement specified in the datasheet. Bypass the supply pins with a combination of bulk and high-frequency ceramic capacitors placed as close as possible to the package to achieve rated performance.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design guidance not always covered by the manufacturer datasheet alone.
Drop-in alternatives for LTC2209IUP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LTC2209IUP (same form factor and footprint) — differing in Package, RoHS Status, Sample Rate, Operating Temperature Range, SFDR.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LTC2209CUP#PBF
✅ Drop-In📋 Reference alternative (not in catalog)
LTC2249IUH
✅ Drop-In✓ In Stock
$20.85 / Unit
View Datasheet →LTC2184IUP
✅ Drop-In✓ In Stock
$28.4 / Unit
View Datasheet →LTC2180CUP
✅ Drop-In✓ In Stock
$41.72 / Unit
View Datasheet →LTC2209IUP#PBF
✅ Drop-In📋 Reference alternative (not in catalog)
LTC2209IUP Maximum Ratings & Electrical Characteristics
| Resolution | 16 bit |
| Sample Rate | 160 Msps |
| Number of Input Channels | 1 |
| Architecture | Pipelined |
| Input Bandwidth | 700 MHz |
| Input Range | PGA-programmable (see datasheet) |
| Digital Output | CMOS / LVDS compatible |
| Package | 64-pin QFN (9x9 mm) with EP |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Temperature Grade | Industrial |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (PBF suffix variants) |
| Lead-Free | Yes (on PBF variants) |
| Internal Reference | Yes |
LTC2209IUP 64-pin qfn (9x9 mm) with ep Pin Configuration Guide
Pin configuration for LTC2209IUP (64-pin qfn (9x9 mm) with ep package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for LTC2209IUP.
Refer to the datasheet for full pin configuration.
Typical Applications
LTC2209IUP is suitable for 6 applications: Cellular Basestation Receiver, Radar and Lidar Signal Processing, Medical Imaging Front-End, Spectrum Analyzer and Test Instrumentation, Cable Modem Head-End / DOCSIS Infrastructure, High-Speed Data Acquisition Systems.
Cellular Basestation Receiver
The LTC2209IUP's 160Msps sample rate and 700 MHz input bandwidth make it a strong fit for cellular basestation receivers digitizing intermediate-frequency (IF) signals in UMTS, LTE, and 5G radio units. Undersampling of high-IF stages with this 16-bit ADC eliminates one or more analog downconversion stages, reducing BOM cost and improving linearity. Compared to lower-speed 12-/14-bit ADCs, the LTC2209IUP's 16-bit resolution preserves dynamic range for carrier aggregation and multi-band signal chains, while the industrial temperature grade ensures operation in outdoor baseband units.
Recommended
Radar and Lidar Signal Processing
Wide-bandwidth radar and lidar front-ends benefit from the LTC2209IUP's 700 MHz analog input bandwidth and 16-bit vertical resolution, which together capture fine-grained return-signal detail from short pulses. The pipelined architecture settles within one clock cycle, supporting pulsed returns at high pulse-repetition frequencies used in phased-array radar. The industrial -40C to +85C temperature range allows deployment in outdoor radar enclosures without additional thermal management, and the 64-QFN package keeps the analog front-end compact for densely populated antenna arrays.
Recommended
Medical Imaging Front-End
In ultrasound and other medical imaging front-ends, the LTC2209IUP's 16-bit resolution and 160Msps sample rate digitize returning acoustic or optical signals with the dynamic range required to resolve low-contrast tissue features. The wide 700 MHz input bandwidth supports the broadband transducers used in high-frequency ultrasound probes. The industrial temperature grade and lead-free construction (with #PBF suffix) meet the reliability and regulatory requirements of medical electronic equipment, and the 64-QFN package enables compact, multi-channel receiver boards with tight channel-to-channel matching.
Recommended
Spectrum Analyzer and Test Instrumentation
High-end spectrum analyzers and arbitrary waveform digitizers use the LTC2209IUP to capture wideband RF signals with 16-bit amplitude accuracy. The 160Msps sample rate provides 80 MHz of Nyquist bandwidth, sufficient for analyzing modulation bandwidths in modern wireless standards. Combined with the 700 MHz analog input bandwidth, the ADC supports harmonic and intermodulation distortion measurements well beyond the Nyquist frequency. The 64-QFN package and exposed pad simplify thermal management in densely populated benchtop instrument chassis.
Recommended
Cable Modem Head-End / DOCSIS Infrastructure
The LTC2209IUP is well suited to cable modem head-end and DOCSIS infrastructure equipment, where downstream and upstream channel aggregators demand high spurious-free dynamic range (SFDR) across a wide input frequency span. The 16-bit resolution preserves modulation error ratio (MER) for high-order QAM signals, and the 700 MHz analog input bandwidth covers the full upstream and downstream cable spectrum. The PGA front end allows the input range to be tailored to the cable plant's signal levels, maximizing SNR without sacrificing linearity.
Recommended
High-Speed Data Acquisition Systems
Multi-channel data acquisition cards for industrial test, vibration analysis, and scientific instrumentation use the LTC2209IUP to capture transient events with 16-bit amplitude precision and 160Msps timing resolution. The 64-QFN (9x9 mm) footprint enables compact 4- or 8-channel boards where multiple ADCs are interleaved for higher effective sample rates. The industrial temperature grade and lead-free RoHS construction make the part suitable for factory-floor and laboratory environments with strict quality and reliability requirements.
Recommended
Recommended Products Summary
Engineering reference data for LTC2209IUP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LTC2209CUP#PBF | LTC2249IUH | LTC2184IUP | LTC2180CUP |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 64-pin QFN (9x9 mm) | 64-pin QFN (9x9 mm) - same | 64-pin QFN (9x9 mm) - same | 64-pin QFN (9x9 mm) - same | 64-pin QFN (9x9 mm) - same |
| Resolution | 16 bit | 16 bit | 14 bit | 16 bit | 16 bit |
| Sample Rate | 160 Msps | 160 Msps | 80 Msps | 105 Msps | 105 Msps |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) |
| Pin-to-Pin Compatible | N/A (reference) | Yes | Yes | Yes | Yes |
Key Differentiators
- Highest sample rate in the 16-bit, 64-QFN family (vs LTC2184IUP)
- Higher resolution than LTC2249IUH (vs LTC2249IUH)
- Industrial temperature grade with same pinout as commercial grade (vs LTC2209CUP#PBF)
Design Notes
Use a solid ground plane directly under the LTC2209IUP and connect the exposed pad (EP) to it with multiple thermal vias in a 4x4 grid pattern. Place the analog input traces as a 100-ohm differential pair with symmetric length matching to within 0.5 mm. Keep the digital output traces (CMOS/LVDS) physically separated from the analog input traces to prevent digital noise coupling into the analog front-end.
Bypass each analog supply pin (AVDD) with a 0.1uF X7R ceramic capacitor placed within 1 mm of the pin, plus a 10uF bulk tantalum or ceramic capacitor. Use a separate analog ground (AGND) island connected to the system ground at a single point. According to the LTC2209 datasheet, the supply voltage and decoupling network directly impact SFDR and SNR performance.
Clock jitter is the dominant noise source for high-IF undersampling applications. Use a low-jitter clock generator (such as the AD9516 or AD9510) and route the clock trace as a 50-ohm controlled-impedance line. According to the LTC2209 datasheet, the SNR degrades by approximately 20*log10(2*pi*fin* tjitter) dB; for fin = 200 MHz and tjitter = 200 fs rms, the SNR loss is ~48 dB, so keeping total clock jitter under 300 fs rms is essential to preserve the 16-bit dynamic range.
Do not connect the exposed pad (EP) to a digital ground - the EP must be soldered to a low-impedance analog ground plane for both electrical performance and thermal dissipation. Estimated: at 160Msps full-speed operation the LTC2209IUP dissipates on the order of 1.5-2 W (per typical datasheet figures), so the 64-QFN package must rely on the PCB copper pour and vias to stay within the -40C to +85C industrial range.
Compliance Information
RoHS compliance applies to the #PBF and #TRPBF suffix variants. Standard LTC2209IUP (no #PBF) may contain lead - always order the #PBF variant for RoHS-compliant assemblies. AEC-Q100 is not applicable as this is a high-speed data converter, not an automotive-grade analog IC.
